We use analytics cookies to understand how the site is used and improve it. No tracking runs until you allow it. See our Privacy Policy.
Insure the project from the first delivery to handover, at the limit your contract and lender actually require.
Get a quoteIn short
Builder's risk insurance, also called course of construction insurance, covers a building or project while it is being built or renovated. It pays to repair or replace the work, materials on site, in transit and in storage, and temporary works after insured damage such as fire, theft, vandalism or windstorm. It can be extended to cover soft costs, delay in start-up and equipment testing, and it ends at completion, occupancy or expiry.
Last reviewed
Builder's risk, also called course of construction insurance, covers a building while it is being built or renovated: the work itself, materials on site, in transit and in storage, and temporary works, against fire, theft, vandalism, windstorm and other insured damage. With the right extensions it also pays soft costs, lost rent or profit from a delayed opening, and damage during equipment testing and commissioning.
Most builder's risk problems come from the set-up, not the claim: a limit based on an early estimate, the wrong party named as insured, no soft cost cover, or coverage that ended quietly when the first tenant moved in. We read your contract, including any CCDC 41 requirements explained in our construction and contractor insurance guide, and place the policy per project or on an annual form, alongside your tools and equipment and liability coverage.
A building under construction isn't a finished building, and an ordinary commercial property policy isn't written for it. Builder's risk is written for the project itself, from the first materials on site to handover.
Builder's risk covers physical damage only. Injury and damage to others are for the contractors' commercial general liability or a project wrap-up, and contractors' own tools and machines go on a tools and equipment floater.
The construction contract decides. Under CCDC 41, the insurance schedule used with Canadian Construction Documents Committee contracts, the contractor arranges broad form property insurance for the project. On other projects, especially with institutional owners, developers and owners who build often, the owner insures the project and the contractor relies on that policy.
Whoever buys it, everyone with a financial stake in the work should be an insured: the owner, the general contractor, subcontractors, and usually the lender as mortgagee or loss payee. Insuring all of them on one policy, with a waiver of subrogation between them, stops the insurer from paying the claim and then suing the trade that caused it. Contractors relying on an owner's policy should ask for its wording and deductible, because the contract may charge the deductible back to whoever caused the loss.
Renovations need extra care. Tell the existing building's insurer before work starts, because a major renovation is a material change and many property policies restrict coverage while a building is under renovation or vacant. Our guide to how the 30-day vacancy clause works explains why. Renovators and trades will find the rest of their program in our construction and contractor insurance guide.
Builder's risk differs from an annual property policy in almost every mechanic. The limit, the premium and the term are all tied to the project.
| Mechanic | How it usually works | Watch for |
|---|---|---|
| Limit | The completed value of the project: materials, labour and the contractor's overhead and margin, plus any owner-supplied items | A limit set from an early estimate can fall behind change orders and price increases |
| Premium | A rate on the completed value for the full term, because the insurer's exposure grows as the building rises | Increasing the value mid-term is typically backdated and charged for the whole term |
| Term | Set to the realistic construction schedule. One Canadian market writes terms of 3 to 18 months, in 30-day increments | Extensions usually cost more and must be requested before expiry |
| Start | Before work or deliveries begin. One Canadian market recommends binding when forming for the foundations starts | That market notes most insurers won't take on a project already under way |
| End | On completion, occupancy, expiry, or extended inactivity, whichever the wording triggers first | One market's wording ends cover after 30 consecutive days without construction activity |
| Deductible | A flat amount per occurrence, sometimes with separate deductibles for water damage, theft or windstorm | CCDC 41 caps the property deductible at $10,000 unless the owner agrees otherwise |
| Annual or reporting form | Builders who start projects continuously can insure them on one annual policy and report each start | Every project must be reported on time, or it may not be covered |
Occupancy is the trigger that catches owners out. One Canadian market's wording ends coverage on the use or occupancy of any part of the project unless that use is for construction, office or residential purposes, or for installing, testing or storing equipment. Arrange the permanent property policy before the first tenant or buyer moves in.
A serious fire doesn't only destroy materials and labour. It delays completion, and the delay has its own price. Builder's risk can be extended to pay for it.
Soft cost and delay limits must be calculated, not guessed. Specialist markets such as Berkshire Hathaway Specialty Insurance ask for a delay or soft cost worksheet with the submission. The worksheet should cover financing costs for the longest realistic delay, plus the time needed for adjustment, redesign and permits after a loss.
The riskiest weeks on many projects come near the end, when boilers, chillers, electrical gear and production lines are switched on for the first time. A standard builder's risk form often excludes or restricts mechanical and electrical breakdown and damage during testing.
CCDC 41 requires separate boiler and machinery insurance for permanent or temporary boilers, pressure vessels and other insurable objects forming part of the work, at their replacement value, including hot testing and commissioning. Cold testing checks systems without full load. Hot testing runs them under operating conditions and carries much higher risk. Make sure the policy names both if the project includes them, and arrange equipment breakdown cover for the finished building at handover.
| Excluded or limited | How to cover it |
|---|---|
| Faulty workmanship, materials or design | Most forms exclude the defective part but cover resulting damage; ask for the broadest resultant-damage wording available |
| Mechanical and electrical breakdown, including during testing | Boiler and machinery cover with hot and cold testing, as CCDC 41 requires |
| Flood and earthquake | Endorsements where available, often with separate deductibles and sublimits |
| Water damage and freezing | Usually covered, but often with a higher deductible and conditions on temporary heat and water shut-off |
| Theft of materials not yet installed | Covered on most forms, subject to site security conditions such as fencing, lighting and locked storage |
| Contractors' tools and equipment | A tools and equipment floater |
| Liability to others | Commercial general liability or a wrap-up |
| Occupancy or long inactivity | Notify the insurer in advance; move to permanent or vacant property cover |
| Wear and tear, rust, mould and pests | Not insurable; managed on site |
| Builder's risk | Installation floater | Commercial property | CGL or wrap-up | |
|---|---|---|---|---|
| What it insures | The whole project under construction | One trade's materials and equipment until installed and accepted | A completed, occupied building and its contents | Injury and damage to others |
| Usually bought by | Owner or general contractor | Subcontractor or installer | Building owner or tenant | Each contractor, or the owner for a wrap-up |
| Limit based on | Completed project value | Value of the installation | Replacement cost of the finished building | Contract requirements |
| Ends | Completion, occupancy or expiry | Acceptance by the owner | Annual renewal | Annual renewal or end of the wrap-up period |
Most Canadian construction contracts set the builder's risk requirement directly. The December 14, 2020 edition of CCDC 41 asks for:
The 10% margin over the contract price is there for debris removal, price increases and change orders. Costs keep rising: Statistics Canada's non-residential building construction price index was up 3.5% year over year in the second quarter of 2026. Owners often amend CCDC 41 or use an older edition, so send us the insurance section of every contract before you sign.
A hypothetical general contractor is building a $4,000,000 three-storey commercial building under a CCDC contract. It insures the project at 1.1 times the contract price, a $4,400,000 limit, with a $10,000 deductible and a soft costs extension.
At 70% complete, a fire starts in temporary heating and destroys the upper floor and roof. The builder's risk policy pays to clear debris and rebuild the damaged work at current prices, less the deductible. The soft costs extension pays the owner's extra construction loan interest, property taxes and re-engineering fees for the five-month delay. The owner's delay in start-up cover pays the rent it would have collected from its anchor tenant.
Now change one fact. The contractor had insured the project at an early $3,600,000 estimate and bought no soft cost cover. The rebuild is limited by the lower amount, and the delay costs fall on the owner, who will look to the contract to recover them.
Builder's risk premiums are a rate applied to the completed project value for the policy term. Underwriters set the rate from:
The wider market helps. Marsh's Global Insurance Market Index put Canadian commercial property rates down 8% in the third quarter of 2026. A complete submission still matters most: drawings, schedule, values breakdown, site plan and security measures.
Insurabiz is an independent brokerage that works only in business insurance. We place builder's risk per project or on annual forms for builders who start projects continuously.
Contractors who also need bonds for the same project can arrange them through our contract surety team, and developers should see residential surety.
Our claims team works with you, the owner and the adjuster from first notice to settlement. Our post on insuring the project before it exists covers start dates and occupancy in more detail.
Good to know
Sources
This page is general information, not insurance or legal advice. Coverage depends on your policy wording and the insurer. Speak with a licensed broker about your situation.
Builder's Risk Insurance
Compare 17 insurers, no obligation
Speak with an advisor
A fast, no-obligation quote from Canada's commercial insurance specialists. Real advice, the whole market compared, and someone who picks up the phone.