What is Construction Insurance in Canada?

Construction insurance is a set of policies that protect contractors, builders, developers, and property owners from financial loss related to property damage, injuries, equipment loss, or project delays during construction projects.

Is construction insurance required in Canada?

Yes, certain types of construction insurance are required by law in most provinces. Others, like General Liability or Builder’s Risk, are often contractually required even if not legally mandated.

What is Builder’s Risk Insurance?

Builder’s Risk covers buildings under construction against losses like fire, theft, vandalism, and weather damage. It usually ends once the project is completed or handed over.

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Coverage Guide

Construction Insurance Coverage in Canada

Construction insurance in Canada protects building projects from property damage, liability claims, and legal disputes.

Requirements vary by province, municipality, project type, and contract terms. Several forms of coverage are commonly mandatory either by law or by contract.

Construction insurance is designed to protect construction projects, contractors, property owners, and workers from financial losses that can occur during a project. Instead of one single policy, construction insurance is usually a combination of coverages tailored to the project’s size, scope, and risks.

It typically includes Course of Construction, or Builder’s Risk, plus Commercial General Liability (CGL), Commercial Auto and Worker's Compensation to cover losses from fire, theft, vandalism, and third-party injury or property damage. Many construction companies usually add optional insurance like Tools and Equipment Insurance, Business Interruption Insurance, Surety Bonds, Professional Liability Insurance and Cyber Insurance.

Because standard home and business policies often exclude new builds and major renovations, contractors, owners, and developers need specialized construction insurance.

We work with the Canadian Home Builders’ Association (CHBA) to offer its members of Canada’s residential construction industry a unique program to protect their businesses.

Workers' Compensation

Workers’ compensation insurance for construction companies in Canada is generally mandatory and provides coverage for employees who are injured or become ill due to workplace activities. It typically covers medical expenses, wage replacement, rehabilitation costs, and disability benefits. Construction employers must usually register with their provincial workers’ compensation authority, such as WorkSafeBC (BC) , WCB (AB) or WSIB (ON). Premiums are based on factors such as payroll, claims history, safety record, and the type of construction work being performed.

Example:

A roofing contractor in Ontario hires a crew of framers, electricians, and labourers. On a job site, a roofer falls from a ladder and breaks their arm. Workers’ compensation (WSIB in Ontario) covers the worker’s medical treatment, a portion of lost wages, and rehabilitation costs, while shielding the contractor from being sued directly by the employee over the injury. Without this coverage, the contractor could face large out of pocket medical and legal costs and may even be barred from bidding on public or private projects that require proof of workers’ comp.

Commercial General Liability (CGL)

CGL is usually required by most clients, municipalities, landlords, and general contractors before they allow work to begin on site. Commercial General Liability (CGL) insurance for construction companies in Canada is a core policy that protects businesses against third-party claims for bodily injury, property damage, and legal defence costs arising from construction activities. It is usually not legally mandatory by law, but it is required in most construction contracts, municipal permits, and developer agreements. Most contractors are required to carry minimum limits (often $2 million to $5 million per occurrence) to work on commercial or public projects.

Example:

A small framing contractor is working on a new home build. While moving materials on site, a stack of lumber falls and damages the homeowner’s driveway and mailboxes. A visitor also trips over a loose power cord and sprains an ankle. The contractor’s Commercial General Liability (CGL) policy helps cover the costs to repair the driveway and mailboxes, plus the visitor’s medical bills and any liability claims, up to the policy limits. This protects the contractor from paying these third party damage and injury costs out of pocket, which is why most clients, municipalities, landlords, and general contractors require CGL before allowing work on site.

Builder's Risk / COC Insurance

Builder’s Risk insurance (also called Course of Construction or “COC”) in Canada is a property insurance policy that protects a construction project while it is being built. It covers the structure under construction as well as materials and equipment on-site or in transit against risks like fire, theft, vandalism, and certain weather damage. It is not legally required by law, but it is commonly mandatory in construction contracts and often required by lenders or project owners. Coverage typically ends once the project is completed, occupied, or handed over to the owner.

Example:

A builder in Calgary is constructing a new detached infill home with a total build value of $800,000. During framing, a severe summer thunderstorm brings strong wind and hail that tears off part of the roof underlayment and damages exterior sheathing and some interior framing. The builder has a Builder’s Risk (course of construction) policy written for the project. The policy pays to replace the damaged underlayment and sheathing, repair the affected framing, and cover reasonable debris removal costs, so the builder and homeowner don’t have to fund those repairs out of pocket. This type of coverage is common on Alberta construction projects and is typically required by lenders, municipalities, or project owners to protect the structure and materials from perils like fire, wind, hail, vandalism, or theft during the build period.

Commercial Auto Insurance

Commercial auto insurance in Canada is required for any vehicles used for business purposes in construction, such as pickup trucks, vans, and heavy-duty work vehicles. It provides coverage for third-party bodily injury, property damage, accident benefits, and vehicle damage depending on the policy. Unlike some other construction coverages, commercial auto insurance is legally mandatory in all provinces if a vehicle is registered for business use. If your construction crew uses company trucks or vans to haul tools, equipment, or crew to job sites, you need commercial auto insurance. Standard personal auto policies are usually not enough to cover work related accidents, business use, or liability arising from construction operations.

Example:

A roofing contractor in Vancouver uses a company owned pickup truck and a small flatbed trailer to haul shingles, tools, and crew to job sites. On the way to a project, the driver swerves to avoid a pedestrian and hits a parked car, causing property damage. A visitor also trips over a loose power cord and sprains an ankle. Commercial auto insurance pays for the repairs to the other vehicle and covers the visitor’s medical costs (up to policy limits), while also protecting the contractor from being personally liable for the bulk of the damages. Without this coverage, the business could face large out of pocket repair and legal bills and may also breach contracts that require proof of commercial auto insurance.

Surety Bonds (public projects)

Surety bonds are not insurance, but they work alongside construction insurance in Canada to provide financial guarantees that a contractor will meet their contractual obligations on a construction project. A surety bond involves three parties: The contractor (principal) who must complete the work, The project owner (obligee) who requires the guarantee, The surety company that issues the bond. Instead of paying claims like insurance, the surety guarantees performance. If the contractor fails to complete the project or meet obligations (for example, going bankrupt or abandoning the job), the surety steps in to either: Finance completion of the project, or hire another contractor to finish the work, and recover costs from the original contractor afterward. Common construction surety bonds include:

1. Bid Bonds: Guarantee that if you win a project bid, you will enter into the contract at the quoted price.

2. Performance Bonds: Ensure the project is completed according to contract terms and specifications.

3. Labour & Material Payment Bonds: Guarantee that subcontractors, suppliers, and workers are paid.

4. License & Permit Bonds: required for certain trades or municipal work.

After paying, the surety company has the right to recover its costs from the original contractor. Ultimately, the contractor remains financially responsible for the loss.

Example:

A city invites contractors to bid on a $2 million road repaving project. The selected general contractor must post a performance bond and a payment bond through a surety company. The performance bond guarantees that if the contractor walks off the job or fails to finish the work properly, the surety will either find another contractor to complete the project or compensate the city up to the bond amount. The payment bond guarantees that the contractor’s subcontractors and material suppliers will be paid; if the contractor does not pay them, those unpaid parties can make a claim on the bond. In both cases, the contractor remains responsible to repay any money the surety pays out.

Professional Liability / E&O

Professional liability insurance (also called Errors & Omissions or “E&O") for construction companies in Canada protects businesses and professionals against claims arising from errors, omissions, negligence, or faulty design in professional services. It is commonly carried by architects, engineers, consultants, and design-build contractors involved in construction projects. Coverage may help pay for legal defence costs, settlements, and damages if a client claims that professional advice, plans, or specifications caused financial loss or construction defects. While it is not always legally mandatory, professional liability insurance is often required by contracts, especially on commercial, infrastructure, and design-build projects.

Example:

A design–build contractor in Ontario prepares construction drawings and project specifications for a new office building. During construction, errors in the mechanical drawings cause the HVAC system to be installed incorrectly, forcing the owner to pay for ripping out part of the ceiling and redoing ductwork at a cost of $120,000. The owner sues the contractor, claiming professional negligence. The contractor’s professional liability (errors and omissions) policy helps cover the legal defence fees and any settlement or damages the contractor is found liable for, up to the policy limits, so the business doesn’t have to pay the full cost out of pocket.

Tools & Equipment Insurance

Tools and equipment insurance safeguards contractors, tradespeople, and construction businesses from the financial impact of stolen, damaged, or lost gear. It covers mobile tools, machinery, and equipment that are regularly moved between job sites, items often not fully protected under standard commercial property insurance.

Example:

A plumbing contractor in Alberta owns a fleet of power tools, pipe threading machines, and a small trencher used across multiple residential and commercial projects. After finishing a job in Calgary, the contractor leaves the tools in a rented van parked on site overnight. Someone breaks in and steals several high value tools valued at over $15,000. The contractor’s tools and equipment insurance helps pay to replace the stolen items, minus any deductible, so the business can continue working without absorbing the full loss out of pocket.

Business Interruption Insurance

Business interruption insurance helps a business recover lost income and ongoing expenses when operations are temporarily halted by a covered event, such as a fire, storm, or serious equipment failure. It doesn’t pay to repair the building or equipment (that’s property insurance); instead, it covers the income you would have earned and key costs like rent, payroll, and utilities during the shutdown period.

Example:

A mid size electrical contractor in British Columbia has its main shop and warehouse in a shared industrial building. One winter, a fire in an adjacent unit spread and damages the contractor’s shop, forcing the business to stop work for six weeks while the space is repaired and safety inspections are completed. During that time the contractor cannot schedule new jobs or finish existing ones, so revenue drops sharply, but rent, vehicle leases, and some salaries still must be paid. If the contractor carries business interruption insurance linked to its property policy, the insurer can help cover a portion of the lost job income and ongoing fixed costs for the shutdown period, easing the financial strain instead of leaving the owner to cover everything out of pocket.

Cyber Insurance

Cyber insurance helps businesses financially recover from cyber attacks and data breaches, such as ransomware, hacking, or stolen customer information. It typically covers costs like IT forensics, legal fees, customer notification, regulatory fines, and lost income when systems are down.

Example:

A mid size mechanical contractor in Ontario uses a cloud based estimating and accounting platform and stores client contact details, project invoices, and some subcontractor bank account type information online. Hackers carry out a ransomware attack that encrypts the company’s job scheduling and accounting systems, forcing the business to stop billing and delay projects for five days while IT teams and experts restore operations. If the contractor has a cyber insurance policy, it can help pay for IT forensics, data recovery services, legal advice, and a portion of the lost income during the shutdown, as well as costs to notify affected clients if any personal or financial data was exposed.

Mandatory

Workers' Compensation +

Workers’ compensation insurance for construction companies in Canada is generally mandatory and provides coverage for employees who are injured or become ill due to workplace activities. It typically covers medical expenses, wage replacement, rehabilitation costs, and disability benefits. Construction employers must usually register with their provincial workers’ compensation authority, such as WorkSafeBC (BC) , WCB (AB) or WSIB (ON). Premiums are based on factors such as payroll, claims history, safety record, and the type of construction work being performed.

Example:

A roofing contractor in Ontario hires a crew of framers, electricians, and labourers. On a job site, a roofer falls from a ladder and breaks their arm. Workers’ compensation (WSIB in Ontario) covers the worker’s medical treatment, a portion of lost wages, and rehabilitation costs, while shielding the contractor from being sued directly by the employee over the injury. Without this coverage, the contractor could face large out of pocket medical and legal costs and may even be barred from bidding on public or private projects that require proof of workers’ comp.

Commercial General Liability (CGL) +

CGL is usually required by most clients, municipalities, landlords, and general contractors before they allow work to begin on site. Commercial General Liability (CGL) insurance for construction companies in Canada is a core policy that protects businesses against third-party claims for bodily injury, property damage, and legal defence costs arising from construction activities. It is usually not legally mandatory by law, but it is required in most construction contracts, municipal permits, and developer agreements. Most contractors are required to carry minimum limits (often $2 million to $5 million per occurrence) to work on commercial or public projects.

Example:

A small framing contractor is working on a new home build. While moving materials on site, a stack of lumber falls and damages the homeowner’s driveway and mailboxes. A visitor also trips over a loose power cord and sprains an ankle. The contractor’s Commercial General Liability (CGL) policy helps cover the costs to repair the driveway and mailboxes, plus the visitor’s medical bills and any liability claims, up to the policy limits. This protects the contractor from paying these third party damage and injury costs out of pocket, which is why most clients, municipalities, landlords, and general contractors require CGL before allowing work on site.

Builder's Risk / COC Insurance +

Builder’s Risk insurance (also called Course of Construction or “COC”) in Canada is a property insurance policy that protects a construction project while it is being built. It covers the structure under construction as well as materials and equipment on-site or in transit against risks like fire, theft, vandalism, and certain weather damage. It is not legally required by law, but it is commonly mandatory in construction contracts and often required by lenders or project owners. Coverage typically ends once the project is completed, occupied, or handed over to the owner.

Example:

A builder in Calgary is constructing a new detached infill home with a total build value of $800,000. During framing, a severe summer thunderstorm brings strong wind and hail that tears off part of the roof underlayment and damages exterior sheathing and some interior framing. The builder has a Builder’s Risk (course of construction) policy written for the project. The policy pays to replace the damaged underlayment and sheathing, repair the affected framing, and cover reasonable debris removal costs, so the builder and homeowner don’t have to fund those repairs out of pocket. This type of coverage is common on Alberta construction projects and is typically required by lenders, municipalities, or project owners to protect the structure and materials from perils like fire, wind, hail, vandalism, or theft during the build period.

Commercial Auto Insurance +

Commercial auto insurance in Canada is required for any vehicles used for business purposes in construction, such as pickup trucks, vans, and heavy-duty work vehicles. It provides coverage for third-party bodily injury, property damage, accident benefits, and vehicle damage depending on the policy. Unlike some other construction coverages, commercial auto insurance is legally mandatory in all provinces if a vehicle is registered for business use. If your construction crew uses company trucks or vans to haul tools, equipment, or crew to job sites, you need commercial auto insurance. Standard personal auto policies are usually not enough to cover work related accidents, business use, or liability arising from construction operations.

Example:

A roofing contractor in Vancouver uses a company owned pickup truck and a small flatbed trailer to haul shingles, tools, and crew to job sites. On the way to a project, the driver swerves to avoid a pedestrian and hits a parked car, causing property damage. A visitor also trips over a loose power cord and sprains an ankle. Commercial auto insurance pays for the repairs to the other vehicle and covers the visitor’s medical costs (up to policy limits), while also protecting the contractor from being personally liable for the bulk of the damages. Without this coverage, the business could face large out of pocket repair and legal bills and may also breach contracts that require proof of commercial auto insurance.

Optional

Surety Bonds (public projects) +

Surety bonds are not insurance, but they work alongside construction insurance in Canada to provide financial guarantees that a contractor will meet their contractual obligations on a construction project. A surety bond involves three parties: The contractor (principal) who must complete the work, The project owner (obligee) who requires the guarantee, The surety company that issues the bond. Instead of paying claims like insurance, the surety guarantees performance. If the contractor fails to complete the project or meet obligations (for example, going bankrupt or abandoning the job), the surety steps in to either: Finance completion of the project, or hire another contractor to finish the work, and recover costs from the original contractor afterward. Common construction surety bonds include:

1. Bid Bonds: Guarantee that if you win a project bid, you will enter into the contract at the quoted price.

2. Performance Bonds: Ensure the project is completed according to contract terms and specifications.

3. Labour & Material Payment Bonds: Guarantee that subcontractors, suppliers, and workers are paid.

4. License & Permit Bonds: required for certain trades or municipal work.

After paying, the surety company has the right to recover its costs from the original contractor. Ultimately, the contractor remains financially responsible for the loss.

Example:

A city invites contractors to bid on a $2 million road repaving project. The selected general contractor must post a performance bond and a payment bond through a surety company. The performance bond guarantees that if the contractor walks off the job or fails to finish the work properly, the surety will either find another contractor to complete the project or compensate the city up to the bond amount. The payment bond guarantees that the contractor’s subcontractors and material suppliers will be paid; if the contractor does not pay them, those unpaid parties can make a claim on the bond. In both cases, the contractor remains responsible to repay any money the surety pays out.

Professional Liability / E&O +

Professional liability insurance (also called Errors & Omissions or “E&O") for construction companies in Canada protects businesses and professionals against claims arising from errors, omissions, negligence, or faulty design in professional services. It is commonly carried by architects, engineers, consultants, and design-build contractors involved in construction projects. Coverage may help pay for legal defence costs, settlements, and damages if a client claims that professional advice, plans, or specifications caused financial loss or construction defects. While it is not always legally mandatory, professional liability insurance is often required by contracts, especially on commercial, infrastructure, and design-build projects.

Example:

A design–build contractor in Ontario prepares construction drawings and project specifications for a new office building. During construction, errors in the mechanical drawings cause the HVAC system to be installed incorrectly, forcing the owner to pay for ripping out part of the ceiling and redoing ductwork at a cost of $120,000. The owner sues the contractor, claiming professional negligence. The contractor’s professional liability (errors and omissions) policy helps cover the legal defence fees and any settlement or damages the contractor is found liable for, up to the policy limits, so the business doesn’t have to pay the full cost out of pocket.

Tools & Equipment Insurance +

Tools and equipment insurance safeguards contractors, tradespeople, and construction businesses from the financial impact of stolen, damaged, or lost gear. It covers mobile tools, machinery, and equipment that are regularly moved between job sites, items often not fully protected under standard commercial property insurance.

Example:

A plumbing contractor in Alberta owns a fleet of power tools, pipe threading machines, and a small trencher used across multiple residential and commercial projects. After finishing a job in Calgary, the contractor leaves the tools in a rented van parked on site overnight. Someone breaks in and steals several high value tools valued at over $15,000. The contractor’s tools and equipment insurance helps pay to replace the stolen items, minus any deductible, so the business can continue working without absorbing the full loss out of pocket.

Business Interruption Insurance +

Business interruption insurance helps a business recover lost income and ongoing expenses when operations are temporarily halted by a covered event, such as a fire, storm, or serious equipment failure. It doesn’t pay to repair the building or equipment (that’s property insurance); instead, it covers the income you would have earned and key costs like rent, payroll, and utilities during the shutdown period.

Example:

A mid size electrical contractor in British Columbia has its main shop and warehouse in a shared industrial building. One winter, a fire in an adjacent unit spread and damages the contractor’s shop, forcing the business to stop work for six weeks while the space is repaired and safety inspections are completed. During that time the contractor cannot schedule new jobs or finish existing ones, so revenue drops sharply, but rent, vehicle leases, and some salaries still must be paid. If the contractor carries business interruption insurance linked to its property policy, the insurer can help cover a portion of the lost job income and ongoing fixed costs for the shutdown period, easing the financial strain instead of leaving the owner to cover everything out of pocket.

Cyber Insurance +

Cyber insurance helps businesses financially recover from cyber attacks and data breaches, such as ransomware, hacking, or stolen customer information. It typically covers costs like IT forensics, legal fees, customer notification, regulatory fines, and lost income when systems are down.

Example:

A mid size mechanical contractor in Ontario uses a cloud based estimating and accounting platform and stores client contact details, project invoices, and some subcontractor bank account type information online. Hackers carry out a ransomware attack that encrypts the company’s job scheduling and accounting systems, forcing the business to stop billing and delay projects for five days while IT teams and experts restore operations. If the contractor has a cyber insurance policy, it can help pay for IT forensics, data recovery services, legal advice, and a portion of the lost income during the shutdown, as well as costs to notify affected clients if any personal or financial data was exposed.

How Construction Insurance Works in Canada

Why Canadian Builders Need Robust Construction Insurance to Survive Job Site Incidents

When a construction project begins, the parties involved, such as the owner, developer, general contractor, and subcontractors, purchase different types of insurance policies.

These policies respond if there is:

Property damage
Bodily injury
Equipment loss
Construction delays caused by insured events
Legal claims from third parties
Worker injuries

If a covered incident occurs, the insured party files a claim with the insurer. The insurer investigates the loss and, if approved, pays for covered damages, legal costs, or repairs after deductibles are applied.

Know your baseline

Contract Requirements and Coverage Extensions

Construction contracts play a critical role in determining insurance obligations on a project. Contracts often specify required coverage limits, additional insured requirements, waivers of subrogation, and bonding obligations. Even if a contractor has active insurance, they may still be in breach of contract if required endorsements or policy conditions are missing. Additional endorsements and coverage extensions are important in construction insurance.

Construction insurance involves more than simply securing coverage; it requires careful alignment of policies, endorsements, and contractual terms to prevent gaps in coverage and mitigate the risk of contractual disputes.

Avoid underinsurance

Exclusions to Watch For

Standard construction insurance policies commonly exclude risks such as faulty workmanship, wear and tear, pollution, mold, cyber incidents, certain water damage, and professional design errors under general liability policies. One of the most common disputes involves whether the claim relates to the defective work itself, which is usually excluded, or resulting damage caused by the defective work, which may be covered depending on the policy wording.

Proactively reviewing exclusions, securing targeted endorsements, and aligning insurance with strict contract requirements is the only way to mitigate disputes and eliminate catastrophic coverage gaps during a project.

Why comparing matters

Aligning Coverage With Project Needs

Construction insurance policies are not standardized, and similar premiums can provide very different levels of coverage. Comparing policies helps contractors identify important differences in exclusions, coverage limits, and endorsements. Reviewing multiple quotes helps ensure the policy meets contract requirements while providing the right level of protection for the project.

Choosing construction insurance based only on price can create costly coverage gaps and disputes. Comparing policy terms, exclusions, and extensions carefully helps contractors secure proper protection, maintain compliance, and reduce financial risk throughout the project.

Contract Requirements and Coverage Extensions +

Know your baseline

Construction contracts play a critical role in determining insurance obligations on a project. Contracts often specify required coverage limits, additional insured requirements, waivers of subrogation, and bonding obligations. Even if a contractor has active insurance, they may still be in breach of contract if required endorsements or policy conditions are missing. Additional endorsements and coverage extensions are important in construction insurance.

Tip: Construction insurance involves more than simply securing coverage; it requires careful alignment of policies, endorsements, and contractual terms to prevent gaps in coverage and mitigate the risk of contractual disputes.

Exclusions to Watch For +

Avoid underinsurance

Standard construction insurance policies commonly exclude risks such as faulty workmanship, wear and tear, pollution, mold, cyber incidents, certain water damage, and professional design errors under general liability policies. One of the most common disputes involves whether the claim relates to the defective work itself, which is usually excluded, or resulting damage caused by the defective work, which may be covered depending on the policy wording.

Tip: Proactively reviewing exclusions, securing targeted endorsements, and aligning insurance with strict contract requirements is the only way to mitigate disputes and eliminate catastrophic coverage gaps during a project.

Aligning Coverage With Project Needs +

Why comparing matters

Construction insurance policies are not standardized, and similar premiums can provide very different levels of coverage. Comparing policies helps contractors identify important differences in exclusions, coverage limits, and endorsements. Reviewing multiple quotes helps ensure the policy meets contract requirements while providing the right level of protection for the project.

Tip: Choosing construction insurance based only on price can create costly coverage gaps and disputes. Comparing policy terms, exclusions, and extensions carefully helps contractors secure proper protection, maintain compliance, and reduce financial risk throughout the project.

Connect With an Expert →

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Cost Factors

What Determines the Cost of Construction Insurance in Canada?

The cost of construction insurance in Canada is determined by several project-specific risk factors that insurers assess during the underwriting process. Insurance requirements and workers’ compensation systems also vary by province. The main differences typically involve liability requirements, builder licensing regulations, and workers’ compensation rules. In general, higher-risk trades, such as roofing, structural steel, and excavation, pay higher premiums due to their increased exposure to accidents and claims.

Premiums depend on factors like:

Project size and value The primary driver for Builder’s Risk (COC) insurance is the total cost of construction, including labor and materials. Premiums typically range from 1% to 4% of the total project budget.
Duration and Schedule: Longer timelines increase the window of exposure to weather events, theft, and accidents, which raises the overall premium. Extensions mid-project are often costly.
Type of construction Buildings framed with wood (combustible) face significantly higher premiums, often triple the cost, compared to concrete, steel, or masonry structures due to the higher risk of total fire loss.
Location Proximity to fire hydrants and responding fire stations directly impacts rates. Projects located in high-crime zones or areas prone to natural hazards (like flood zones in British Columbia or wildfire zones in Alberta) face higher premiums.
Claims history Insurers review the general contractor's track record. A history of frequent liability claims or safety violations leads to higher rates or a denial of coverage.
Height and complexity more complex projects are harder to build safely, harder to evacuate or fight fires in, and more expensive to repair or rebuild. Insurers see extra risk in multi-storey buildings, mixed use designs, tight urban sites, and projects with many trades or unusual systems, so they typically charge higher premiums for these types of jobs compared with simple, low rise structures.
Type of work (residential vs infrastructure) residential home builds are usually seen as lower risk than large scale infrastructure (roads, bridges, pipelines, transit), so premiums are often lower for typical housing projects. Infrastructure work tends to be more complex, longer duration, and exposed to bigger liabilities, weather, and public safety risks, which pushes insurance prices higher even at similar project values.
Whether it’s occupied during construction Whether the building is occupied during construction affects both coverage and price because an occupied site increases risk and complexity. Insurers often impose stricter terms, may exclude certain types of liability, or shorten the “course of construction” period once even part of the building is put into use or rented out, since hazards to tenants, visitors, and utilities rise sharply. In some policies, allowing full or partial occupancy before the project is complete can trigger early termination of builder’s risk coverage or require a special “permission to occupy” endorsement, which can also raise premiums because of the added risk.
Safety record Insurers view fewer accidents and strong safety practices as lower risk, so companies with clean safety records typically receive lower premiums and more favorable terms.
Site Security Measures: Installing proactive security measures like a fully fenced perimeter, 24/7 video monitoring, and smart water leak detection systems can significantly lower premium costs.

Insurance	Residential	Commercial
Construction Insurance	Residential Renovation (e.g., $250K Main Floor & Addition)	New Commercial Build (e.g., $5M Low-Rise Office Complex)
Builder's Risk / COC Premium	$800 to $2,000 total policy cost	$50,000 to $200,000 total policy cost
Typical COC Rate	1% to 4% of project value	1% to 5% of project value (highly dependent on material)
CGL	$450 to $1,200 annually for standard limits	$5,000 to $40,000+ annually based on payroll and scale
Primary Risk Driver	Occupancy status (vacant properties carry a much higher theft/vandalism risk)	Construction material (wood frame vs. non-combustible steel and concrete)

Average premiums are estimates based on typical construction projects and may vary depending on the specific project risk factors outlined above.

Practical Tips for Construction Insurance Every Canadian Contractor Should Know

Contracts and Coverage

Start by making sure your coverage matches your contracts exactly, many issues happen when policy limits, endorsements, or wording don’t align with project requirements. Keep your insurance and workers’ compensation records up to date, because expired certificates or missing clearance letters can stop you from getting on site.

Align Your Insurance to Contracts and Keep Records Current.

Subcontractors

Work closely with experienced, properly insured subcontractors, since their claims history and coverage can directly affect your own risk exposure. It also helps to maintain strong site safety practices and documentation, as insurers often reward good safety records with better pricing over time.

Partner with Insured Subcontractors and Build a Strong Safety Record.

Get Free Expert Advice

Before starting a project, review all key policies together, CGL, builder’s risk, equipment, and professional liability, to ensure they work together without gaps or overlaps. Finally, involve a broker early so they can structure coverage properly and help you avoid issues before construction begins rather than after a claim occurs.

Review Key Policies Together and Involve Your Broker Early.

Regular Policy Reviews

Regularly review your insurance program as your business grows or your project types change. Coverage that worked for small residential jobs may not be sufficient for larger commercial or high-risk projects, so updating limits, endorsements, and policy structure before new work begins helps prevent unexpected gaps in protection.

Review and Update Your Insurance as Your Business Grows.

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Ways to Save

Ways to Lower Your Construction Insurance

Construction insurance costs in Canada can be reduced by improving risk management and presenting a lower-risk profile to insurers.

Discounts

Smart Site Security and Monitoring Credit +

Insurers offer substantial premium discounts (often 10% to 20%) on Builder’s Risk/COC policies for active site protection. To qualify, you must deploy 24/7 mobile video surveillance carts equipped with AI-driven thermal imaging, or install wireless, cellular-backed smart water leak detection sensors to mitigate early-stage plumbing bursts.

Safety Certification Discount +

In Canada, maintaining a formal safety designation like the Certificate of Recognition (COR) or Small Employer Certificate of Recognition (SECOR) signals an institutional-grade risk profile. Underwriters reward this documented safety culture with preferred tier pricing and lowered base rates on Commercial General Liability (CGL) policies.

Claims-Free Loyalty Credit +

Firms that present a clean loss-run history (typically 3 to 5 consecutive years without a single payout) qualify for claims-free discounts. This history proves your internal quality control and safety programs are actively preventing the minor "nuisance claims" that underwriters penalize heavily.

Continuous Subcontractor COI Verification Credit +

If a general contractor enforces a strict, software-tracked protocol to collect and verify Certificates of Insurance (COI) from every sub-trade, insurers will reduce the CGL audit premium. Ensuring your firm is always named as an Additional Insured with a formal Hold Harmless Agreement lowers your primary risk exposure.

Multi-Policy Bundling and Volume Discount +

Placing your CGL, Builder's Risk, commercial auto, and tool/equipment floaters with a single insurance carrier unlocks multi-line discounts. For high-volume firms, transitioning from individual project policies to an annual Blanket or Reporting Form Builder's Risk policy significantly drops the insurance cost per square foot.

Non-Combustible Material Rate Reduction +

While not a traditional retrospective discount, choosing to build with non-combustible materials like steel, concrete, or masonry results in an immediate structural rate reduction. These projects face a fraction of the fire risk associated with wood-frame construction, reducing the baseline COC premium by up to 60%.

Smart Savings Strategies

Work With a Broker +

A broker helps construction companies in Canada by matching their specific project risks with the right insurance coverage from multiple insurers. Because construction insurance is highly specialized and varies widely between policies, brokers help identify coverage gaps, ensure contract requirements are met, and compare different underwriting options.

In addition, brokers can negotiate pricing, help with endorsements, and support contractors during claims to ensure the process is handled correctly and efficiently.

Increase Your Deductible +

Choosing a higher deductible can lower your annual premium because you are taking on more of the smaller claim risk yourself. Just make sure the deductible is an amount you could comfortably pay if needed.

Leverage Multi-Policy and Annual Volume Discounts +

Bundling your insurance products with a single brokerage or insurance carrier unlocks significant multi-line discounts. Instead of buying ad-hoc, project-by-project Builder's Risk policies, high-volume contractors can set up a Blanket or Reporting Form Builder's Risk policy. This structure covers all active projects under one umbrella, dropping the insurance cost per square foot compared to standalone policies

Optimize Project Timelines to Avoid Costly Extensions +

Because construction insurance is bound to a strict project duration, scheduling delays are expensive. If a project runs over its deadline due to supply chain stalls, securing a policy extension mid-project incurs steep, penalized premium rates. Utilizing rigid project management frameworks and building realistic buffer periods into your initial insurance application prevents the need for these costly mid-term adjustments.

Implement a Strict Subcontractor Vetting Protocol +

General contractors can insulate their primary Commercial General Liability (CGL) policy from rate spikes by transferring risk downward. Ensure every sub-trade signs a formal indemnification agreement and holds their own independent CGL coverage. Collecting and verifying up-to-date Certificates of Insurance (COI) naming your firm as an Additional Insured guarantees that subcontractor mistakes hit their insurance policy, not yours.

Ask About Discounts +

Not every discount is advertised. Ask your broker about claims-free discounts, loyalty pricing, multi-policy binding discounts, and new-client incentives.

Find My Best Rate →

Bundle & Save

Save up to 10%

Construction Companies who bundle their policies can enjoy meaningful savings, simpler policy management, and one point of contact for their coverage needs.

Save up to 10% on your business insurance
Save up to $600 on personal car & home when you bundle with us
One broker, one renewal date, simpler management
Potential for combined deductibles on shared claims
Loyalty benefits that grow with tenure

Bundle and Save Today →

FAQ

Frequently Asked Questions

Who needs Construction Insurance in Canada? +

The four primary groups that need construction insurance in Canada are project owners, general contractors, subcontractors, and construction managers.

Project Owners and Developers:

Whether a commercial developer building a high-rise or a homeowner adding an extension, the property owner needs construction insurance to protect their financial investment.

General Contractors (GCs) / Prime Contractors:

The general contractor holds the highest operational risk. They are legally liable for everything that happens on-site.

Subcontractors and Sub-trades:

Independent tradespeople, including electricians, plumbers, roofers, and drywallers, must carry their own independent policies.

Construction Managers, Architects, and Engineers:

Professionals who consult, design, or manage construction sites without directly hiring the manual labor still require specialized coverage to protect against lawsuits, stemming from structural design flaws, inaccurate project scheduling, or budgeting errors that lead to financial losses for the owner.

What are the benefits of Western construction insurance program with CHBA? +

One policy providing:

Customized insurance tailored for members of the CHBA
Blanket coverage for builder's risk
Liability limits up to $20,000,000
Unique liability extensions to include professional liability, pollution liability, and crane and riggers liability
Cyber coverage
All risk coverage for contractor's tools and equipment

Is subcontractor work covered under my policy? +

No, subcontractors are not automatically covered under a general contractor’s commercial insurance policy in Canada. Because subcontractors are considered independent business entities rather than employees, they are generally required to carry their own insurance, including commercial general liability and workers’ compensation where applicable. In many construction contracts, general contractors also require subcontractors to provide proof of coverage and maintain specific limits to ensure proper risk transfer on the project.

What is wrap-up liability insurance? Who secures the policy? +

Wrap-up liability insurance is a single project-specific policy used in construction projects in Canada that provides commercial general liability coverage for all parties involved, including the owner, general contractor, and subcontractors. Instead of each contractor carrying separate liability policies for the same project, one wrap-up policy covers everyone under a unified program. This helps reduce gaps in coverage, avoid disputes between multiple insurers, and streamline claims handling. It is most commonly used on large commercial or infrastructure projects where multiple contractors are working on the same site.

A key advantage of wrap-up insurance is that it provides a dedicated liability limit for the project, meaning it is not reduced by claims from other unrelated jobs. In contrast, individual CGL policies have annual aggregate limits that can be eroded by claims across multiple sites. It also reduces disputes and delays because there is only one insurer handling claims, rather than multiple insurers arguing over fault. This makes it especially suitable for large-scale projects such as commercial developments, multi-family housing, and infrastructure work.

In construction projects in Canada, wrap-up liability insurance is typically arranged in one of two ways:

Owner-Controlled Insurance Program (OCIP): The project owner or developer purchases and manages the policy for the entire project, covering all contractors and subcontractors on site.

Contractor-Controlled Insurance Program (CCIP): The general contractor arranges the policy and includes it as part of the overall project delivery and pricing, extending coverage to all hired subtrades. In both cases, a single policy is set up to cover everyone involved in the project, rather than each contractor maintaining separate liability policies for that job.

How do construction insurance deductibles work and who is responsible for paying? +

Deductibles in construction insurance in Canada are the amount a contractor or policyholder must pay out of pocket before the insurance company covers a claim. A higher deductible usually lowers the insurance premium, while a lower deductible results in higher premium costs.

The deductible is still initially paid by the policyholder. Once the deductible is paid, how the cost is recovered depends on the contract terms between the parties. Most construction contracts include a “deductible allocation” or back-charge clause, allowing the general contractor to recover the deductible from the subcontractor who caused the loss.

How much does a construction surety bond cost in Canada? +

Bonding is typically priced as a percentage of the contract value.

Most contractors can expect to pay approximately 0.5% to 3% of the bonded amount, depending on factors such as financial strength, credit history, construction experience, project size, and risk level.

For example: A $500,000 project bond may cost between $2,500 and $15,000 depending on risk profile. Higher-risk contractors or larger projects may fall toward the upper end of this range.

What proof of construction insurance may be required before starting a project? +

Construction companies in Canada are often required to provide proof of insurance before starting work on a project. The most common documents include a Certificate of Insurance (COI), which outlines active coverage such as Commercial General Liability, builder’s risk, or commercial auto insurance, and workers’ compensation clearance certificates confirming the company is in good standing with the provincial authority. Project owners, developers, municipalities, and general contractors may also require proof of bonding, additional insured endorsements, or specific liability limits depending on the contract requirements.

Are subcontractors required to carry their own insurance? +

Yes. In Canada, subcontractors are generally required to carry their own insurance because they are considered independent business entities rather than employees of the general contractor. Most construction contracts require subcontractors to maintain Commercial General Liability (CGL) insurance, workers’ compensation coverage where applicable, and sometimes commercial auto or equipment coverage depending on the work being performed. General contractors will also typically request Certificates of Insurance and workers’ compensation clearance letters before allowing subcontractors on site to help reduce liability exposure and ensure proper risk transfer.

How Construction Insurance Claims Usually Work? +

When a loss or accident occurs on a construction project in Canada, the insured party reports the incident to their insurer or broker as soon as possible. The insurer then investigates the claim to determine the cause of the damage, whether the loss is covered under the policy, and who may be responsible. If the claim is approved, the policyholder pays the applicable deductible and the insurer covers the remaining eligible repair costs, legal expenses, or compensation amounts up to the policy limits. Depending on the type of claim, multiple parties, such as contractors, subcontractors, owners, or insurers, may also become involved in the claims process.

What happens if a subcontractor doesn't have insurance but causes damage on site? +

If an uninsured subcontractor causes damage on a construction project in Canada, the general contractor or project owner may become financially responsible for the loss, especially if the subcontractor cannot pay for the damages themselves. In many cases, the claim may still be submitted under the general contractor’s insurance policy, which could lead to higher deductibles, increased premiums, or future underwriting issues. This is why construction contracts typically require subcontractors to carry their own liability insurance and workers’ compensation coverage, along with providing Certificates of Insurance before starting work on site

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Construction Insurance Coverage in Canada

Workers' Compensation

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