The master policy on your building is not a shield. It is a contract with a deductible that boards have been raising into six figures — and that deductible can be assessed back to you.
Unit owners in Vancouver, Toronto, Calgary, and Montreal have opened AGM packages to find water-damage deductibles of $50,000, $100,000, even $250,000 on the corporation or strata policy. The logic from the board is blunt: insurers demanded it, or premiums would jump again. The logic for you is equally blunt: if a leak in your unit, or a common-element loss assessed by bylaw, lands on owners, your personal condo policy has to be large enough to catch it.
Two policies, two jobs
The corporation / strata / syndicate policy covers the building, common elements, and often the original unit structure as the declaration defines it. The unit-owner policy covers your contents, your improvements (betterments), your liability, and — critically — loss assessment, including deductible assessment where the form allows.
If you renovated the kitchen, the master policy may only restore builder-grade. Your unit policy’s betterments limit is what puts the stone counter back.
Deductible assessment, in plain language
After a building claim, the corporation pays its deductible. Bylaws often let the board recover that deductible from the owner whose unit was the source, or spread it among all owners. Your unit policy may cover “loss assessment” and specifically “master policy deductible assessment,” sometimes with a sub-limit.
If that sub-limit is $25,000 and the water deductible is $100,000, you have a $75,000 conversation with your lawyer and your broker, not with a slogan about “full coverage.”
| Coverage on unit policy | What it is for | 2026 reality check |
|---|---|---|
| Loss assessment | Your share of a corporation loss | Raise it when the board raises deductibles |
| Deductible assessment | The master deductible billed to you | Match or exceed the building’s water deductible |
| Unit betterments | Your upgrades | Photograph renovations; keep invoices |
| Contingent building | Gaps if the master policy fails or is inadequate | More relevant after a large uninsured building event |
BC strata, Ontario condos, Quebec co-ownership
British Columbia: Strata deductibles for water have climbed fast. Read the information certificate (Form B) and the insurance summary before you buy a unit. Lenders increasingly ask about deductible size.
Ontario: Status certificates should disclose insurance. Ask for the deductibles, not only “the building is insured.” Reserve-fund health and a history of water claims tell you whether the next AGM will raise the deductible again.
Quebec: Divided co-ownership has its own civil-law structure. The syndicate’s policy and your unit policy must be read together; broker conversations in French and English should still produce the same deductible numbers on paper.
The leak that starts in your bathroom
If your washing machine hose fails and water enters the corridor and the unit below, you may face: your own contents and betterments; damage to other units via liability; and a deductible assessment from the corporation. That is three coverage sections. A cheap condo policy that only advertised “contents $40,000” is not designed for that stack.
A Burnaby example
A one-bedroom owner had $50,000 loss assessment and a $25,000 deductible-assessment sub-limit. The strata water deductible was $100,000. A supply-line failure in the unit was deemed the source. The unit policy paid the $25,000 sub-limit. The owner funded the rest from savings and a line of credit while arguing bylaws. The next renewal, they raised deductible assessment to $100,000 for a premium that was less than one month of that line of credit.
What to do after the next AGM package
- Find the corporation deductibles for water, earthquake (BC), and other large perils.
- Email your broker the numbers and ask whether your unit form matches.
- Increase betterments if you renovated since the last appraisal of improvements.
- Store the AGM insurance page with your policy PDF.
Condo insurance used to feel like a formality for the locker bike. The deductible era made it a balance-sheet item. Treat it that way.