Strata Plumbing: Who Is Responsible When a Leak Crosses Between Units
In a house, a leak is your problem. In a strata, the first question is whose pipe it was, and the answer decides who pays.
Surrey has a great deal of strata housing: townhome complexes, low-rise apartments and mixed developments across City Centre, Guildford, Fleetwood and beyond. When a pipe fails in one of these buildings, the water rarely respects the boundary between units. It comes through a shared ceiling, tracks along a common wall and turns a single failed fitting into a dispute involving two owners, a strata council and often two insurers.
The plumbing repair is usually the easy part. The hard part is the line between common property and an individual strata lot, because that line decides responsibility. A licensed plumber in Surrey can tell you exactly where a failure was and put it in writing, which is the single most useful thing to have when that conversation starts.
This is plumbing context, not legal advice.Responsibility in a BC strata is governed by the Strata Property Act and by your strata's own registered bylaws, which can differ from the Standard Bylaws. For a decision on liability, read your bylaws and, where needed, get proper legal advice. What follows is how the plumbing side of that picture usually breaks down.
Common Property vs Your Strata Lot
The general principle is straightforward even if the edges are not: pipes that serve the whole building tend to be common property, and pipes that serve only your unit tend to be yours. The strata plan and the bylaws are what pin down the exact boundary.
| Component | Usually | Notes |
|---|---|---|
| Main risers and stacks | Common property | The vertical supply and drain lines serving multiple units are almost always the strata corporation's responsibility. |
| Branch line inside your walls | Usually the strata lot | Piping that serves only your unit is commonly the owner's, but the bylaws and strata plan can move this line. Read them. |
| Fixtures and their supplies | The strata lot | Your taps, toilets, sinks, dishwasher hoses and the shut-offs feeding them are the owner's responsibility to maintain and repair. |
| Hot water tank | Depends on the plan | In-suite tanks are frequently the owner's. A central boiler serving the building is common property. Do not assume; confirm. |
| The shut-off you can reach | Know it before you need it | Every owner should know where their in-suite shut-off is and where the building's main shut-off is, before an emergency. |
Where the Boundary Actually Sits
Most strata disputes over plumbing come down to one question: was the failed pipe common property or part of the strata lot? The vertical stacks and risers that carry water and waste for the whole building are almost always common property, maintained by the corporation. The branch that peels off a riser to serve your unit alone is more often the owner's, but this is exactly the point where bylaws vary. Some stratas draw the line at the unit wall, others at the first fitting, others somewhere else again.
Because the boundary is defined in documents rather than by common sense, the productive move is to read the strata plan and the registered bylaws before you argue about who pays. If the pipe that failed sits on the strata's side of that line, the repair is generally the corporation's to arrange and fund.
When One Unit's Leak Damages Another
This is where it gets genuinely complicated, and where it stops being purely a plumbing question. A supply line fails in an upper unit and the water damages the unit below. Three things are now in play at once: the repair of the failed pipe, the restoration of the damaged unit, and the question of who carries the cost of each. Those are frequently three different answers.
The order that helps
- 1Contain the water and protect property if it is safe to do so.
- 2Notify the other owner and the strata or property manager immediately, in writing where possible.
- 3Get the source shut off and the failed pipe diagnosed by a licensed plumber, and ask for the finding in writing.
- 4Document everything: photos, dates, times and the plumber's report. Insurance and any chargeback discussion will depend on this record.
- 5Let the strata and the insurers sort responsibility from that evidence, guided by the bylaws and the Strata Property Act.
Active leak crossing between units right now? Shut off the source if you can safely reach the valve, notify the other owner and the strata or property manager immediately, and call (778) 562-5628for 24 hour dispatch. Getting the water stopped protects everyone's claim.
For Strata Councils and Property Managers
Repeat leaks in a building are not a run of bad luck. They are usually the original plumbing reaching the end of its service life all at once, because every unit was built at the same time with the same materials. A cluster of copper pinhole leaks across several units, or a building still carrying original Poly-B supply lines, is a shared infrastructure issue that belongs in a depreciation report and a capital plan, not a series of emergency call-outs.
A documented plumbing assessment gives a council the objective information it needs to plan: what material the building has, what condition it is in, and whether a phased replacement now costs less than a decade of emergency repairs and water-damage claims. That record also matters at insurance renewal, where building plumbing history increasingly affects both premium and coverage.
Need a Repair Documented Properly?
Whether you are an owner sorting out a cross-unit leak or a council planning ahead, WaterLine Plumbing diagnoses the failure, puts the finding in writing and gives you options with pricing. The $60 inspection fee is credited toward the work once you approve the quote.
Serving strata buildings across Surrey and the Lower Mainland. WaterLine Plumbing is licensed, bonded and insured.
Common Questions
Water is coming through my ceiling from the unit above. What do I do first?
Contain the water if you safely can, put a container under it and move anything valuable, then notify the owner above and the strata or property manager immediately. The upstairs owner controls the source; the strata needs to know because common property and shared insurance are likely involved. Document everything with photos and times from the start.
Who pays for the plumber?
It depends on where the failure is. If the failed pipe is common property, the strata corporation is generally responsible for repairing it. If it is within a strata lot and serves only that unit, it is usually the owner's. The damage to a downstairs unit is a separate question handled through insurance and, sometimes, the Strata Property Act's chargeback provisions. This is a legal and insurance question, and the strata's bylaws govern the specifics.
The strata says it is my problem and I disagree. Now what?
Get the repair diagnosed and documented by a licensed plumber so there is an objective record of where the failure was. Review your strata's registered bylaws, which can differ from the Standard Bylaws. If it cannot be resolved, the Civil Resolution Tribunal handles many strata disputes in BC. Nothing on this page is legal advice; it is the plumbing context you bring to that conversation.
Can the strata enter my unit to fix a common pipe?
The Strata Property Act gives the corporation rights of access to common property and, with proper notice, to strata lots for repairs it is responsible for. Emergencies are treated differently from planned work. Your property manager can explain the notice your strata requires.
References
- Province of British Columbia, Strata Property Act. Retrieved from bclaws.gov.bc.ca.
- Province of British Columbia, Repairs and maintenance in a strata. Retrieved from gov.bc.ca.
- Civil Resolution Tribunal, Strata disputes. Retrieved from civilresolutionbc.ca.