Condo Insurance, Deductibles, and the Hidden Risk Buried in the Documents

There's a question almost no condo or strata buyer asks before they sign, and almost every owner wishes they'd asked after something goes wrong:

If a pipe bursts and floods three units, who pays the insurance deductible?

Most people assume the building's insurance covers it. It does cover the damage. But the deductible, the amount the corporation pays out of pocket before insurance kicks in, is a different story. On many condo and strata policies that deductible is $25,000, $50,000, sometimes $100,000 or more for water damage. And depending on what the bylaws say and how the loss happened, that bill can land on a single owner.

That gap between what the corporation's policy covers and what an individual owner can be charged is one of the most expensive risks in condo and strata ownership. It's also one of the easiest to miss, because the warning signs are spread across three different documents that buyers rarely read side by side.

Here's how the two layers of insurance work, where the risk shows up in the documents, and what to check before it becomes your problem.

A quick note: this is general information about condo and strata insurance in Alberta, British Columbia, and Ontario, not legal or insurance advice. Tessira is not a law firm and not an insurance broker. For advice on your specific situation, talk to a lawyer licensed in your province and a licensed insurance broker.

Two policies, not one

Every condo or strata building runs on two separate layers of insurance, and the gap between them is where owners get hurt.

Layer one: the corporation's policy. The condo corporation (Alberta, Ontario) or strata corporation (BC) is legally required to insure the building's structure and common property.

• In Alberta, the Condominium Property Act (s.47, "Insurance") requires the corporation to carry insurance, with the perils and amounts set out in the Condominium Property Regulation (s.61 covers the perils to be insured against; s.62 covers the insurance amount and the deductible).
• In British Columbia, the Strata Property Act (s.149, "Property insurance required for strata corporation") requires the strata to insure common property and common assets on a full-replacement-value basis.
• In Ontario, the Condominium Act, 1998 (s.99) requires the corporation to maintain insurance, and the status certificate (s.76) must summarize the corporation's insurance for a prospective buyer.

This policy is big and usually well-funded. The catch is its deductible, and what happens to that deductible when a claim is made.

Layer two: your own policy. This is the personal condo or strata unit policy you buy yourself (often called an HO-6 or "condo contents" policy). It covers your belongings, your upgrades and improvements, and your liability. Critically, it can cover your exposure to the corporation's deductible if your policy includes that coverage and the limit is high enough.

Most owners have a vague version of layer two and almost no understanding of layer one. That's the gap.

The deductible gap, explained with a number

Say a supply line under a kitchen sink fails on the 14th floor. Water runs for six hours overnight and damages four units and a hallway. Total damage: $90,000.

The corporation's policy covers the $90,000 of building damage, which is good. But the policy has a $50,000 water-damage deductible. So the corporation pays the first $50,000; insurance pays the remaining $40,000.

Now the question that decides everything: who pays that $50,000 deductible?

There are two possibilities, and they depend entirely on the documents:

1. The corporation absorbs it, paid out of the operating budget or, if it's large, recovered from all owners through a special assessment (Ontario) or special levy (Alberta and BC). Spread across 80 units, that's manageable.
2. The corporation charges it back to the responsible unit if the bylaws and the law allow the deductible to be billed to the owner whose unit the loss originated from. Now one owner owes $50,000.

That second outcome is real, and it's common. In Alberta it's statutory and no-fault (CPR s.62.4, damage originating in your unit, up to $50,000); in BC it's statutory and responsibility-based (SPA s.158(2)); in Ontario the owner can be charged the lesser of the repair cost and the deductible under the Condominium Act, 1998, s.105(2), with by-laws able to extend when the charge applies. The same gap has three different rulebooks, which is exactly why the documents, not assumptions, should answer it.

This is exactly the kind of cost a personal condo/strata policy with loss-assessment and deductible coverage is meant to absorb, but only if you bought enough of it. If the corporation's deductible is $50,000 and your policy only covers $25,000 of deductible exposure, you're personally short $25,000.

Where the risk shows up in the documents

The good news: every piece you need to assess this risk is disclosed somewhere in a normal document package. You just have to know which document holds which piece.

1. The insurance certificate (or summary)

This is the corporation's proof of insurance, usually a one- or two-page certificate from the insurer or broker. It's the single most important page for this risk, and the one buyers most often skip.

What to read for:

• The deductibles, line by line. There isn't one deductible; there's usually a schedule. The general/all-perils deductible might be $10,000, but the water-damage deductible is frequently much higher: $25,000, $50,000, $100,000. Sewer backup and overland water can be higher still. Water is where the money is, because water claims are the most common and most expensive in multi-unit buildings.
• Whether the building is insured to full replacement value. An underinsured building is a quieter risk: if a major loss exceeds coverage, owners can be assessed for the shortfall. BC's Strata Property Act (s.149) requires full-replacement-value coverage; Alberta's regulation (CPR s.62) addresses the required amount. If the insured value looks low relative to what the building would cost to rebuild today, that's a question to raise.
• The policy expiry date. Make sure the coverage is current, not a certificate from two renewals ago.

2. The bylaws (BC: strata bylaws; ON: by-laws, rules and declaration)

The certificate tells you how big the deductible is. The bylaws tell you who pays it.

What to read for: a clause that lets the corporation recover an insurance deductible from an owner. The wording varies, but you're looking for language like "the deductible portion of any claim arising from an act, omission, or unit of an owner may be charged to that owner as a contribution." Some bylaws tie the chargeback to fault; others make the owner responsible whether or not they were negligent. That distinction is worth thousands of dollars, so read it carefully or have it read for you.

In British Columbia, the statute itself draws the line: the deductible on the strata's policy is normally a common expense (Strata Property Act, s.158(1)), but s.158(2) lets the strata corporation sue an owner to recover the deductible if that owner is responsible for the loss or damage. "Responsible" is the limiting word, and strata bylaws often build on this baseline, which is why the bylaws still matter.

In Alberta, the rule is stricter than most owners expect, and it's statutory, not just bylaw-based. Under the Condominium Property Regulation, s.62.4, an owner is absolutely liable, careless or not, for up to the corporation's deductible when damage originates in or from their unit (or an assigned exclusive-possession area), capped at $50,000 no matter what the bylaws say. There are exceptions (construction defects, damage attributable to the corporation itself, normal structural deterioration), and the corporation can recover by demand, debt action, or a levy if the bylaws permit. That slow-failing hose connector you didn't know about? In Alberta, by statute, that loss can still be yours.

3. The minutes (and the financial statements)

The certificate and bylaws describe the rules. The minutes tell you whether the building is actually living with this risk right now.

What to read for in the board or strata-council minutes:

• A jump in the insurance premium or deductible at renewal. Across Canada, condo and strata insurance premiums and deductibles climbed sharply in recent years, especially for water claims. If the minutes show the water-damage deductible going from $10,000 to $50,000 at the last renewal, that's a live signal: the building's exposure just changed, and so did every owner's.
• A claims history. Repeated water losses don't just raise premiums; they can push insurers to raise deductibles or add exclusions. A building with three water claims in two years is a different risk than one with none.
• Difficulty getting coverage. Minutes that mention the broker "shopping the market," a coverage gap, or a special meeting about insurance are telling you the corporation is under pressure. That's worth understanding before you buy in.

Cross-check the financial statements too: an insurance line that has doubled year over year confirms what the minutes hint at.

What to actually check (a short list)

You don't need to become an insurance expert. You need to answer five questions from the documents you already have:

1. What is the water-damage deductible on the corporation's policy? (Insurance certificate.)
2. Can that deductible be charged back to an owner, and does it depend on fault? (Bylaws, and in BC, the Act.)
3. Is the building insured to full replacement value? (Insurance certificate.)
4. Has the premium or deductible spiked recently, or is there a claims history? (Minutes and financial statements.)
5. Does my own condo/strata policy carry enough deductible and loss-assessment coverage to cover the gap? (Your personal policy; a licensed broker can confirm.)

If the corporation's water deductible is $50,000, the bylaws allow a no-fault chargeback, and your personal policy covers $10,000 of deductible exposure, you've found a $40,000 hole before you signed. That's the whole point of looking.

Why this hides so well

This risk is hard to see for a simple reason: the answer isn't in any one document. The deductible is in the insurance certificate. The chargeback rule is in the bylaws. The trend is in the minutes and financials. No single page says "you could owe $50,000." You only see it when you read all three together and connect them, which is exactly what almost no one does during a busy conditions or subject-removal period.

That's the work Tessira is built for. It reads the full document package, including the certificate, bylaws, minutes, and financials. It surfaces findings like a high water-damage deductible paired with an owner-chargeback bylaw, cited to the relevant Alberta, BC, or Ontario law so you can verify every point yourself and take it to your lawyer and broker. (If you're curious, our review starts at $199 during the introductory period, but the checklist above is yours to use whether you ever talk to us or not.)

Whatever you do, don't let "the building has insurance" be the end of the conversation. The building's insurance is real. The deductible is also real. On a $400,000 purchase, knowing who pays it is worth twenty minutes and a careful read.

Tessira is purpose-built condo and strata document review software for buyers and owners in Alberta, British Columbia, and Ontario. This article is general information, not legal or insurance advice. Tessira is not a law firm and not an insurance broker; for advice on your situation, consult a lawyer licensed in your province and a licensed insurance broker.

This article was written with AI assistance. Per our AI disclosure policy.