Climate Risk and Your Home: Floods, Wildfires, and Insurance Gaps

Standard insurance is not the whole risk map

A home can pass the showing test and fail the risk test. The listing may not mention that a basement floods, that overland flood coverage is unavailable or expensive, that wildfire evacuation is normal, or that earthquake coverage is optional and costly.

The Government of Canada's Flood Ready campaign states that standard home insurance may not cover overland flooding. That sentence is the mindset for the whole topic: ask what is excluded, not only what is covered.

Ask about water, fire, quake, heat, and access

Flood risk includes river, coastal, stormwater, sewer backup, poor grading, sump failure, and low-lying lots. Wildfire risk includes vegetation, roof and siding materials, evacuation routes, and distance to fire service. Earthquake risk is regional, but the insurance question is national: if it is not included, what would coverage cost and what deductible applies?

Get the quote before you waive conditions

Do not wait until closing week to discover an insurance problem. Ask for a quote on the specific property before removing conditions. If the quote has exclusions, high deductibles, or unavailable coverage, treat that as part of the purchase price. (Owning a Home covers the four standard-policy gaps in detail.)

Risk is sometimes manageable, but it is still a cost

A risky property is not automatically a bad property. Some risks can be reduced: sump pump and backup power, grading, backwater valves, sewer backup coverage, fire-resistant roof work, defensible space, drainage improvements, roof maintenance, emergency kits, evacuation plans, and better documentation for insurers. But mitigation costs money, and it may not make coverage available in every location.

Ask three questions separately. First: can I insure the risk? Second: can I reduce the physical risk? Third: would a future buyer or lender see the same concern? A property can be lovable and still carry a resale discount if future buyers are frightened by flood maps, fire history, insurance exclusions, or high deductibles.

Climate due diligence belongs before the offer is firm because it can change the price you should pay, the conditions you need, and whether the home belongs in your budget at all.

Past damage and future risk are both relevant

Ask directly about past water intrusion, insurance claims, wildfire evacuation, smoke damage, sewer backup, drainage work, foundation repairs, roof age, sump pump history, and mould remediation. Seller disclosure rules vary, and disclosure forms are not a substitute for inspection, insurance review, and your own questions.

Look outside the property line too. A house can be safe on its lot but exposed through road access, evacuation routes, culverts, nearby slopes, forest interface, drainage from neighbouring land, or municipal infrastructure. Climate risk is not only "will my house burn or flood?" It is also "can I leave, can help arrive, can insurance continue, and can I afford mitigation?"

For renters, the same mindset applies. Ask about basement flood history, tenant insurance, emergency exits, smoke filtration, cooling, and what the landlord is responsible for during an extreme event.