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Is water damage covered by home insurance in Canada? Twelve situations, and which one is yours

The honest answer is: it depends entirely on where the water came from, and there are twelve common answers rather than one.

That sounds like evasion and it is not. A Canadian home policy does not have a clause called “water damage”. It has several, they are worded very differently, three of the most likely ones are optional purchases, one is conditional on what you did before you left the house, and one cannot be bought at all. Which sentence applies to you is decided by the source of the water, not by how much of it there is.

So this page is a lookup table. Find the row that sounds like your night.

The same water, twelve different names

The left column is what people actually say on the phone. The middle column is the language the policy uses, which is the language you need if you want a straight answer from an insurer. The right column is the part that costs money.

Why the middle column matters more than it looks

Ask “am I covered for flooding” and you can get a yes that means overland water cover, when what you actually had was a sewer backup — a different endorsement that you may not hold. The words are not interchangeable in a policy even though they are completely interchangeable in a kitchen.

The reverse trap is worse. A great many Canadians are confident they are covered for water because their policy does, genuinely, cover the most common indoor failures. It does. It just does not cover the two ways water most often reaches a Canadian basement.

The shortest version of the whole page

• Water that escapes inside the house, suddenly — generally covered as standard.
• Water that arrives from outside, or backwards up a drain — generally an optional endorsement you had to buy first.
• Water that has been arriving slowly for a long time — generally not an insured event at all, because insurance is written around sudden and accidental loss.

The three you have to buy

These are the gaps. Each one is a separate product with its own wording, its own limit and usually its own deductible, and holding one gives you nothing under another.

Sewer backup — the one most likely to be missing

IBC states that damage caused by the backing up of sewers and drains is “typically not covered by a standard policy”, and puts it the other way round on its flooding page: basement water damage from a sewer backup is is “only covered if you have purchased specific, optional sewer backup coverage”.

This is the endorsement that matters most in older Canadian cities, because that is where the drainage system is most likely to reverse. Toronto publishes that approximately 23 per cent of its older areas are on combined sewers — one pipe carrying both sewage and stormwater — which is to say that a heavy rainfall and a sewage backup there are not two events that might coincide. They are one event. Full detail: the sewer backup endorsement.

Overland water — newer in Canada than people assume

Residential overland flood cover did not exist for most Canadian homeowners for most of the country’s insurance history. IBC now describes it as “offered by many insurers for the majority of homes across the country and is based on risk”.

“Based on risk” is the operative phrase: availability and price are set off flood mapping, so being declined is information about the address rather than about the insurer. And it is not only a waterfront product — IBC notes that “even if you do not live by a lake or river, your home could still experience flood damage from surface or ground water”.

Full detail: overland water coverage.

Service line — the pipe you own but cannot see

The buried lateral between the property line and your house is usually the homeowner’s responsibility even where it runs under a public road. Separately, IBC lists cover for damage related to the escape of water from a broken water main as something a standard policy typically includes, “whether it occurs on or outside your property” — so the water main and your own buried lateral are two different questions. Full detail: service line coverage.

The two that are conditional

These are not gaps and they are not guarantees. They are covered, with a condition attached, and the condition is the whole thing.

Ice damming — covered the first time

Most pages on this subject get this backwards, including an earlier version of ours. IBC's position is that standard homeowners' policies commonly cover “sudden and accidental water damage caused by ice dams”.

What falls out is the repeat: “ongoing or repeated damage” is treated as a long-term maintenance issue and may not be covered. IBC also notes that policies vary and that basic policies might not cover ice dam damage at all.

So the line is not drawn at ice dams. It is drawn at the second and third time in the same corner of the same roof — which is fair, because by then the cause has been demonstrated and the cause is heat escaping into the attic rather than the weather. How that mechanism actually works.

Frozen plumbing — covered if you did what was asked

IBC: “damage arising from the freezing of indoor plumbing may not be covered if you are away during the normal heating season”. And then the half that gets dropped from almost every summary: IBC states that “freezing-related damage that occurs despite these precautions, is typically covered”.

What is being asked of you is specific rather than vague. IBC names it — many insurers require the plumbing to be drained, or the home to be checked regularly or daily to confirm heat is maintained — and tells you to ask your insurance representative to confirm the necessary intervals for checking the property.

That is a phone call with a written answer, and it is worth making in October. The October list.

The one you cannot buy

Every other gap on this page has an endorsement behind it. One does not.

IBC describes flood damage due to storm surge or tidal waves as “typically not covered by most home insurance policies, nor by optional endorsement”, and notes it affects the small percentage of Canadians who live in coastal areas.

Why this one is worth knowing even inland

Because it is the clearest illustration of how the rest of the page works. The Canadian water market is built out of named perils that you either hold or do not hold, and the boundaries are drawn by mechanism — where the water came from — rather than by severity. Storm surge is not excluded because it is expensive. It is excluded because it is a different mechanism from the one the residential flood endorsement was written for.

Which is the same reason a sewer backup is not covered by overland water cover, and why neither is covered by the clause that pays for a burst pipe.

Why “I have flood coverage” is not a safe sentence

There is one more piece of IBC's wording that resolves a lot of confused conversations, and it is easy to miss.

Overland flood cover and sewer backup cover are commonly sold as one purchase. So they are frequently bought together, in one transaction, under one line on a renewal notice.

What that does to a homeowner’s memory

It produces a large number of people who are sure they bought “the water one” and cannot say which. If they were sold the bundle, they are right and they are fine. If they were sold one of the two, they are half right, and which half will only be established on the night it matters.

The question that settles it in one sentence

Not “am I covered for water damage”. Ask instead:

Which water endorsements are on my policy by name, what is the limit on each, and what is the deductible on each?

Three facts, written down, before anything is wet. A broker can read them off the declarations page. This site publishes none of those figures for anybody, because they are set per policy and we have measured none of them — what else we deliberately leave blank.

How to find out which of the twelve you have

Everything above is about the policy. This part is about your copy of it.

Start with which level of cover you hold

IBC describes four: comprehensive, basic or named perils, broad, and no frills.

This decides the shape of every answer above. A named-perils policy answers only what it lists; a comprehensive one answers everything except what it excludes. Most people do not know which they hold, and it is printed on the declarations page.

Then read the endorsements section, not the summary

Endorsements are listed separately from the base cover, usually by name and often with their own limit and deductible beside them. “Sewer backup” and “overland water” will appear there by name if you hold them. If they do not appear, you do not hold them.

Then ask the five questions that are not on the page

1. Is there a separate limit on each water endorsement, and what is it?
2. Is there a separate deductible, and is it a fixed amount or a percentage?
3. If two perils operate on one night, do two deductibles apply?
4. Are basement contents limited differently from the rest of the house?
5. Is there a waiting period before a newly added endorsement responds?

None of those are answerable by this site and all of them are answerable in one call. Our page on deductibles and settlement explains why the answers decide more than the cover does.

And if something is wet right now

The cover question can wait an hour; the damage cannot. Health Canada puts the start of mould growth at 48 hours in an area with excessive moisture, and your policy separately requires you to act to limit further damage from the moment you know about it — see duty to mitigate. Photograph everything first, then stop the water, then get air moving. How a claim runs from there.

Questions people actually ask

Where to read next

• The endorsement most likely to be missing
• What overland water actually responds to
• Work out which peril you have from the symptom
• What happens once you report it
• What the repair costs, and whose figures those are