Insurance
Water damage is now the leading cause of home insurance claims across Canada, surpassing fire. In July 2024 alone, Toronto flash floods caused more than $940 million in insured losses. Yet many homeowners are still surprised when a water damage claim is denied.
What you’re covered for depends on where the water comes from. A burst pipe in your basement gets covered. A river flooding into that same basement doesn’t.
This guide breaks down:
Standard Canadian home policies cover sudden and accidental water damage from inside your home.
That includes:
When these happen unexpectedly, your insurer typically pays for damage to floors, walls, ceilings, and personal belongings.
What standard policies don’t cover is water from outside, such as overland flooding, sewer backups, and groundwater seepage, unless you have added optional endorsements.
Your policy also excludes maintenance issues. Slow leaks, corroded pipes, and deteriorating roofs are your responsibility. Coverage responds to sudden events, not problems that build up over time.
Your standard policy handles three main scenarios: sudden internal failures, damage from broken water mains, and water entering through storm-caused openings. Each comes with specific conditions about what gets paid and what doesn’t.
This is the core standard coverage.
Standard policies cover sudden water escaping from plumbing, heating, air conditioning systems, and hot water tanks. Appliance failures also get covered, such as dishwashers, washing machines, and fridge ice makers.
For example, if a washing machine hose bursts and floods your kitchen, your water-damaged flooring and cabinets are covered.
What’s not covered: the appliance itself. Home insurance covers the damage caused by the leak, not the failed appliance.
Frozen pipes create a grey area. Coverage typically applies as long as reasonable heat was maintained. Leaving your home unheated during winter can lead to a denied claim.
Standard policies sometimes cover roof leaks.
If water enters your home because a storm caused sudden damage, such as wind tearing off shingles or debris breaking a window, the resulting interior water damage is typically covered.
So if rain enters through a roof opening caused by wind or hail, your ceilings, walls, and belongings are protected.
What’s not covered:
Your policy might cover the interior water damage in some cases, but repairing the deteriorated roof itself remains your responsibility.
Sudden plumbing failures behind walls or under floors are usually covered.
Broken municipal water mains also commonly come under coverage. If the city’s water main breaks and floods your basement through your service line, most policies respond to the damage.
However, gradual leaks are excluded.
Sink and tub overflows depend on circumstances. An accidental overflow might be covered. Deliberate or repeated overflows may be considered negligence.
Standard policies exclude two broad categories: damage from poor maintenance and water entering from outside.
Gradual Damage and Poor Maintenance
Home insurance does not cover damage caused by:
If the damage developed slowly, insurers expect it could have been prevented.
For example:
These are all considered maintenance responsibilities — not insurable events.
Standard policies don’t cover overland flooding.
That includes:
Groundwater seepage, when the water table rises and pushes water through foundation walls, is also excluded unless specifically added.
Coastal flooding and storm surge are often uninsurable even with optional endorsements.
Because standard coverage has limits, many homeowners rely on optional endorsements.
Covers water backing up through floor drains, toilets, sinks, or sump systems.
This endorsement became critical after major Canadian cities experienced repeated sewer backup events during severe storms.
Covers water from overflowing lakes, rivers, and heavy rainfall. Some policies include groundwater damage. Always check the wording.
Flood coverage isn’t available everywhere. Roughly 10% of Canadian households face high flood risk, where private coverage may not be offered.
Ice dams force melting snow under shingles and into your home. This damage requires an endorsement, especially in colder regions.
Flood and water endorsements typically carry higher deductibles than your base policy.
How to File a Home Insurance Water Damage Claim
Act immediately when you discover water damage:
Detailed guidance on immediate response steps appears in our article covering steps to take after water damage in your house.
Delaying a claim or discarding damaged property before the adjuster arrives can reduce your settlement or trigger a denial.
Prevention protects both your home and your insurance record.
Sudden damage from burst pipes, appliance failures, water main breaks, and storm-caused roof leaks.
Will insurance pay out for water damage?
Yes, when the damage is sudden and accidental. Gradual leaks, poor maintenance, flooding, and sewer backup without optional coverage get denied.
It covers interior damage caused by sudden storm-caused leaks, not aging or worn-out roofs.
Any damage caused by water, from plumbing failures to flooding. The source and cause determine whether your policy responds to the specific damage.
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