Standard home insurance in Ottawa may cover some renovation-related losses, but it often falls short during larger projects — and failing to notify your insurer before you start can lead to a denied claim. A typical homeowner's policy is written for a lived-in, finished home, not an active construction site. Once you open up walls, add square footage, or leave the home vacant during work, the risk profile changes and your existing coverage may no longer apply the way you expect. This guide explains, in general terms, when renovations affect your coverage, why you should call your broker before...
Whether your home insurance covers a renovation depends on your specific policy, the scope of work, and whether you told your insurer in advance. Small cosmetic projects — painting, flooring, a new vanity — usually don't change your coverage. Larger projects that involve structural work, additions, extended timelines, or leaving the home vacant frequently do, and many policies contain conditions that can reduce or void coverage if the insurer isn't informed. The key principle: insurers price risk based on the information you give them. A finished, occupied home is a lower risk than one with open walls, exposed wiring, trades coming and going, and materials on site. If your home's risk changes materially and you didn't disclose it, the insurer may argue the policy terms weren't met when a claim arises. That's why the single most important step is a phone call before the project starts.
Call your insurance broker or provider before renovations begin — this is the step that most often determines whether a claim is honoured. Many policies require you to disclose material changes to the property and its occupancy, and a major renovation typically qualifies. When you notify your insurer, they can tell you whether your existing coverage is adequate, whether you need an endorsement, and whether the project triggers a vacancy or builder's risk issue. Skipping this conversation is the most common and most expensive mistake homeowners make with renovation insurance. A theft of materials, a fire from a trade's tool, or water damage from an open plumbing line during a reno could all end in a denied claim if the insurer was never informed of the work. Making the call costs nothing and protects everything.
Be specific: the scope of work, expected start and end dates, whether the home will be occupied or vacant, whether you're adding value or square footage, and who's doing the work. If you're adding an addition or finishing space, mention the increased replacement value — under-insuring a home after a renovation is a separate risk. Your broker uses these details to recommend the right coverage.
If your home will be unoccupied during a renovation, standard coverage may lapse after a set period, and you may need a vacancy permit endorsement. Many home policies limit or exclude coverage once a home has been vacant beyond a defined number of consecutive days, because vacant homes face higher risks of undetected water damage, vandalism, and delayed fire response. For a whole-home renovation where you move out, this matters a great deal. A vacancy permit or similar endorsement can maintain coverage during the vacant period, though it may carry different terms or exclusions. Ask your insurer specifically how vacancy affects your policy and what the threshold is, since these details vary between providers and can change.
For major renovations and additions, a builder's risk (course of construction) policy covers the project itself — materials, work in progress, and the structure during construction. It fills gaps that a standard home policy leaves open on an active job site. Builder's risk typically protects against losses like fire, theft of building materials, and weather damage to work under way. On a large addition or a home taken down to the studs, this coverage is often recommended and sometimes required by lenders. Who buys it — you or your contractor — should be spelled out in your contract. Confirm with your broker whether your project warrants builder's risk and what it excludes, because these policies have specific conditions.
A properly insured contractor is part of your renovation risk protection — their liability insurance and WSIB coverage matter to you, not just to them. Before hiring, confirm the contractor carries adequate liability insurance and, where applicable, workplace coverage, and ask for proof. Contractor liability insurance can respond if the contractor's work damages your property or a third party. Workplace coverage matters because an uninsured worker injured on your property could otherwise become your problem. Verifying this coverage is a standard part of vetting a contractor in Ontario. It doesn't replace your own homeowner or builder's risk coverage — the two work together — but hiring an uninsured contractor to save money can expose you to serious liability.
Request a certificate of insurance naming the coverage and limits, and confirm it's current. A reputable Ottawa contractor provides this without hesitation. If a contractor is evasive about insurance, treat it as a warning sign about how they'll handle the rest of the job.
Most denied renovation claims trace back to a handful of avoidable mistakes. The biggest is never telling the insurer about the project. Others include: assuming a small policy tweak isn't needed for a big job, ignoring vacancy limits when moving out, under-insuring the home's new replacement value after adding square footage, and hiring an uninsured contractor. To protect yourself: call your broker before work starts, get any coverage changes in writing, keep documentation and receipts, confirm your contractor's insurance in writing, and re-evaluate your coverage limits once the renovation increases your home's value. None of these steps is expensive — they're about communication and paperwork — but together they're the difference between a covered loss and a costly surprise.
It depends on your policy and the project. Small cosmetic work usually doesn't affect coverage, but larger projects involving structural work, additions, or vacancy often do — and many policies can reduce or void coverage if you didn't notify your insurer first. Always confirm with your own broker, since policies vary.
Yes, for anything beyond minor cosmetic work. Many policies require disclosure of material changes to the property, and a renovation often qualifies. Notifying your insurer lets them confirm your coverage is adequate or recommend an endorsement. Failing to disclose is the most common reason renovation-related claims get denied.
Builder's risk (course of construction) insurance covers the project itself — materials, work in progress, and the structure during construction — against losses like fire, theft, and weather damage. It's often recommended for major renovations and additions, and sometimes required by lenders. Your contract should state whether you or the contractor buys it.
Many policies limit or exclude coverage once a home is vacant beyond a set number of consecutive days, because vacant homes carry higher risks. If you'll be out during the work, ask your insurer about a vacancy permit endorsement to maintain coverage. The vacancy threshold and terms vary by provider.
A contractor's liability insurance can respond if their work damages your property or a third party, and workplace coverage protects against liability for worker injuries. This works alongside your own coverage, not instead of it. Always ask for a current certificate of insurance before hiring, and be wary of contractors who won't provide one.
Possibly, but it depends on your policy and whether the insurer was informed of the project. A builder's risk policy typically covers theft of building materials on an active job site, whereas a standard home policy may have limits or conditions. This is another reason to discuss the project with your broker before it starts.
Often yes. Adding square footage or significant value raises your home's replacement cost, and an under-insured home may not be fully rebuilt after a loss. Once a renovation increases your home's value, ask your insurer to review your coverage limits so they reflect the improved property.