
Commercial ยท Shared buildings
Condo and Multi-Unit Building Plumbing
In a shared building, one leaking valve can soak three suites below it. We find the source, isolate the smallest section possible and keep the rest of the residents in water.
- Booked before opening, after close or between sittings
- Only the failing branch shut down; other units stay running
- Written job notes with photos for owners and managers
- Camera footage on drain work for your records
Where multi-unit plumbing goes wrong
- Riser shut-offs that will not close fully when a suite needs work.
- Kitchen stacks shared by a column of units that back up into the lowest suite.
- Washer box and dishwasher leaks that show up on the ceiling below.
- Booster pumps that cycle hard and cause pressure swings on upper floors.
- Central hot water that runs lukewarm by the evening rush.
How we handle a building call
- Talk to the superintendent or manager to get access to mechanical rooms and riser valves.
- Trace the water from the stained ceiling upward, suite by suite, until we reach the source.
- Isolate at the suite valve if it holds, or at the riser with notice to affected units.
- Repair and replace the failed part, and swap seized valves while the riser is down.
- Jet the shared stack from the roof vent or a cleanout when several suites are affected.
- Write it up so the board or owner knows which unit, which part and what it cost.
Who pays for what
In Ontario condos, the declaration and by-laws of each corporation set the line between suite piping and shared piping. We do not decide that; we document the location of the failure clearly so the manager and insurers can apply the rules. For rental buildings, the landlord's maintenance obligations under the Residential Tenancies Act generally cover plumbing; check current guidance before relying on any summary.
Planned work we also do
- Riser valve replacement programmes floor by floor
- Stack camera surveys before a reserve fund study
- Domestic hot water tank and recirculation pump replacement
Water coming through a ceiling? Call (365) 517-0623 and tell us the floor and suite number.
Asked on site
Can you shut off water to only one suite?
Usually, if the suite valves still close. Older buildings often have seized valves; we replace them while the riser is isolated so the next repair is easier.
Will you deal with the property manager directly?
Yes. We report to whoever manages the building and copy the owner of the suite where needed.
Keep reading
- Manager accountsOne plumbing number for Newmarket property managers: tenant calls, vacant-unit checks, backflow tests and written job notes for every address on your list..→
- Hidden leak tracingHidden leaks behind drywall, under slabs and above ceilings located with as little opening up as possible.→
- Commercial PlumbingCommercial plumbing for Newmarket restaurants, offices, plazas and multi-unit buildings: grease lines, washrooms, risers, jetting and backflow tests..→