Water leak detectors in a Quebec condo: what the law says and what insurers want

Is it mandatory?

Not by statute. No Quebec law requires a divided co-ownership to install leak detection or an automatic shutoff. In practice the pressure comes from insurers. After repeated water claims, an insurer can respond with exclusions or deductibles high enough that the syndicate cannot reasonably keep its coverage, and can make a detection system a condition of renewal.

What the Civil Code allows a board to do

Article 1039 of the Civil Code of Québec gives the syndicate the duty to preserve the immovable and safeguard the rights of the co-owners. Legal commentary reads this as authority for the board to require a leak detection system when it is needed to conserve the building. Article 1066 adds that no co-owner may obstruct work necessary for conservation, even within their private portion. Together, that is how a board can impose sensors and a shutoff valve inside individual units.

When a system is imposed for conservation, the cost is shared as common expenses according to the relative value of each unit, and the declaration of co-ownership generally has to be amended to describe the system and who maintains it.

What insurers offer in return

Some Quebec insurers reward the installation rather than just demanding it. As one example, La Personnelle advertises up to 10 percent off the base premium for an automatic shutoff valve with leak detectors, and a smaller discount for detectors linked to a monitoring centre. Terms, exclusions and eligibility vary by insurer and by policy, so ask yours in writing before the work starts. We provide the documentation they typically request.

How it fits inside a unit

In most condos each unit has its own water shutoff, usually near the water heater or in a mechanical closet. The motorised valve is installed on that line, so a leak in your unit closes your water and only yours. Sensors go under the sinks, at the dishwasher, the washing machine, the water heater and behind the toilet. In older buildings the shutoff arrangement varies, which is why we confirm it during the survey rather than promise it from a brochure.

Why the decision should be made locally

A valve that needs the building's Wi-Fi and a company's cloud to close is a valve that may not close. Ours takes its decision on a hub in the unit, over Thread, in under a second, with no internet involved. The notification you receive afterwards is the second layer, not the first.

If you sit on a board

• Ask your insurer what a detection system would change on the next renewal, and get the answer in writing.
• Decide whether the syndicate installs one system for the building or sets a standard that owners must meet in their units.
• Plan the amendment to the declaration at the same time as the installation.
• Insist on a written map of where every sensor and valve sits. Future boards will need it.