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Boiler and metal fittings against brick in a building mechanical room
Mechanical room boiler and fittings

Multi-unit

Risers, Stacks and Shared-Building Plumbing

In a shared building, one leak rarely stays in one suite. We trace water between floors and plan shut-offs so the fewest neighbours lose service.

  • Seized suite valves and riser valves swapped after residents get notice
  • Leaks traced between floors to the true source
  • Shared stacks cleared from the nearest cleanout
  • Scheduling done with the manager or board, not around them
Phone answered by a plumber(365) 414-5810
  • Licensed trade work
  • Homes & businesses
  • Same-day visits when possible
  • Markham & York Region

Problems we see in shared buildings

  • Suite shut-off valves seized open, so no one can isolate a leak.
  • Water marks on the ceiling of the unit below a bathroom or laundry.
  • Kitchen stacks that back up on lower floors when upper suites drain.
  • Pressure that drops on top floors during the morning rush.

How a multi-unit job is planned

  1. The manager or superintendent confirms access to suites and mechanical rooms.
  2. Residents get notice of any riser shut-off and its expected length.
  3. We isolate the smallest section that makes the repair safe.
  4. Lines are refilled slowly, air is bled from fixtures and each affected suite is checked.

The visit, in order

  1. 1

    Find and test the main shut-off before opening anything.

  2. 2

    Locate the fault at the fixture, the wall or the line.

  3. 3

    Repair with matching parts and proper fittings.

  4. 4

    Run water, test every joint and clean the work area.

Who pays for what

An Ontario condo's declaration normally spells out where unit piping stops and common-element piping starts. We do not decide that, but we document where the failure was found, with photos, so the board and owner have what they need.

Know where your suite shut-off is. In many Markham condos it sits behind an access panel near the washer box or in the ceiling of the bathroom.

Stacked towns and small walk-ups

Cornell and Markham Centre stacked townhomes often share drains between upper and lower units. A blockage from one household can appear in the other, so we camera the shared branch before cabling blindly.

Straight from the phone log

Is a full-building shutdown needed to change one riser valve?

It depends on the valve layout. Some risers have sectional valves; others need a building shut-down. We check before booking so residents get proper notice.

Will you deal with our board and management office?

Gladly. Bookings go through the office, and photos plus a short write-up follow every visit.

Ready to get it fixed?

One call, a clear explanation, and work finished tidily before we leave.

Call (365) 414-5810