Condo Plumbing Responsibility in Ontario: What Boards Should Know

How the Condominium Act Splits Condo Plumbing Responsibility

This is not legal advice, but generally speaking under Ontario law the Condominium Act, 1998 sets the default: section 90 makes the corporation responsible for maintaining the common elements while each owner maintains their own unit, and section 89 requires the corporation to repair the units and common elements after damage. Section 91 then allows your governing documents to shift those duties. The Act gives you a starting point, and your declaration and by-laws finish the answer.

For plumbing, the practical question is almost always the same: what does the pipe serve? A pipe, stack or drain that serves more than one unit is generally a common element, even when it physically runs inside the wall of someone's kitchen. A branch line or fixture that serves only one unit is generally that owner's responsibility from the point where it leaves the shared system.

The mistake boards make is assuming the drywall is the dividing line. In many Ontario declarations the unit boundary sits at the backside of the drywall, which means the pipe chase inside the wall is common element territory. But declarations vary, and some assign in-wall services differently, so the only reliable answer comes from reading yours.

Which Plumbing Belongs to Owners and Which Belongs to the Corporation

With the serve-the-unit principle in mind, most buildings split out along familiar lines. Typically the owner is responsible for:

•       Faucets, toilets, sinks, tubs and showers inside the unit

•       Supply lines and connections from the branch point to those fixtures

•       Appliance hoses and connections for dishwashers and washing machines

•       In-suite shut-off valves, where the declaration assigns them to the unit

•       Drain lines that serve only the unit, up to the point they join a shared stack

•       Hot water tanks serving only the unit, whether owned or rented

And the corporation typically handles:

•       Main water supply lines and risers

•       Drain, waste and vent stacks serving multiple units

•       Pipes located within common element walls, ceilings and floors

•       Main and floor-level shut-off valves

•       Sump pumps, sewage ejectors and backflow preventers

•       Exterior hose bibs and irrigation plumbing

Typically is the operative word. Strong condo corp management turns this from guesswork into a written responsibility matrix, cross-referenced to your declaration and standard unit definition, so the board and the owners get the same answer every time. If your current management company cannot produce that document, you are resolving every leak from scratch. For more on how the Act assigns repair duties across the whole building, read our guide: Who Is Responsible for Condo Repairs in Ontario?

When a Pipe Fails: Damage, Deductibles and the Standard Unit

Maintaining plumbing and repairing after a failure are different obligations, and they can land on different parties. A worn cartridge or a corroded trap follows the maintenance duties above. A burst pipe is usually an insurable event, and that changes the analysis.

This is not legal advice, but generally speaking under Ontario law section 99 of the Condominium Act requires the corporation to insure the units and common elements against major perils, including water damage from a burst pipe. That coverage stops at the standard unit definition. Anything an owner upgraded above the builder baseline is an improvement, and the owner insures and repairs it. Section 105 then deals with the deductible: where an owner's act or omission caused the damage, the corporation can often charge its deductible back to that owner, and many corporations have passed an insurance deductible by-law that extends when the deductible follows the unit where the leak began.

The sequencing matters for boards. Before the next leak, confirm three things: that your corporation has a standard unit by-law, that it has a current insurance deductible by-law, and that owners have been told in writing what those documents mean for them. For how fault, insurance and the standard unit interact in a real claim, read our guide: Water Damage in Ontario Condos: Who Is Responsible?

What Proactive Plumbing Management Looks Like

Most plumbing disputes are not really legal problems. They are maintenance problems that were allowed to become emergencies. A management company that only dispatches a plumber after the water is already running is doing the reactive half of the job.

Proactive condo corp management of a building's plumbing typically includes scheduled riser and stack inspections, periodic testing of shut-off valves so they actually close in an emergency, age tracking for hot water tanks, maintenance of backflow preventers and sump systems, and plain-language memos telling owners where their shut-off valve is and what to do in the first five minutes of a leak. In buildings constructed between roughly 1995 and 2007, it also means confirming whether Kitec piping is present, because Kitec is prone to sudden failure and replacement commonly runs several thousand dollars per unit. Known Kitec should be reflected in status certificates and in reserve fund planning.

This is a useful benchmark for your board. Whether your building relies on condo management in London Ontario or condominium management in Sarnia Ontario, your manager should be able to show you the preventive maintenance calendar for the plumbing systems, not just the invoices from the last emergency. At Sapphire, we find that boards who see a documented plumbing program for the first time immediately recognize what they had been missing. Our guide on Condo Building Maintenance in Ontario shows what a full preventive program covers.

Plumbing failures also have a way of exposing budget problems, because emergency repairs and deductibles land on the operating fund without warning. If a recent repair has your board wondering whether the financials could absorb the next one, you can get a second opinion on your financial statements on us through Sapphire's free financial review.

Frequently Asked Questions

Q: Who is responsible for pipes in condo walls in Ontario?

A: This is not legal advice, but generally speaking under Ontario law it depends on what the pipe serves and where your declaration draws the unit boundary. Pipes serving more than one unit are generally common elements even inside a unit's wall, while a branch line serving only one unit is generally the owner's from the point it leaves the shared system. Your declaration and standard unit definition are the final word.

Q: If a leak starts in one unit and damages another, who pays the deductible?

A: Usually the corporation's insurance responds to damage up to the standard unit, and the corporation carries the deductible. If the leak resulted from an owner's act or omission, or if the corporation has an insurance deductible by-law assigning the deductible to the unit where the damage originated, that deductible can often be charged back to the owner. Boards in London Ontario and Sarnia should have their management company confirm exactly which by-laws are in place before a claim, not after.

Q: How do we find out if our condo has Kitec plumbing?

A: Kitec was commonly installed in Ontario buildings between about 1995 and 2007 and is usually identifiable by its orange and blue piping and stamped brass fittings. A licensed plumber can confirm whether it is present. If Kitec is found, it should generally be disclosed on status certificates, and the board should start planning replacement, because the class action compensation fund stopped accepting registrations in 2020.

Related Reading

→ Who Is Responsible for Condo Repairs in Ontario?

→ Water Damage in Ontario Condos: Who Is Responsible?

→ Condo Building Maintenance in Ontario