01
Riser Replacement
Sectional and full-stack renewal of domestic water, sanitary and storm risers — staged floor-by-floor to keep units in service.
Commercial & Highrise · Toronto & GTA
Water systems
Water systems
for the vertical city.
A.T Plumbing keeps Toronto's condo towers and commercial buildings flowing — risers, mechanical rooms, drains and backflow. Built for buildings, on call 24/7.
0Buildings serviced
0Years in the GTA
24/7Emergency crew
50+ floorsTallest tower serviced
// What we do
Built for buildings,
Built for buildings,
not bungalows.
Six core service lines for occupied, multi-storey property — sized for vertical access, after-hours work and a paper trail your board can file.
02
Mechanical Rooms
Booster pumps, backflow assemblies, PRV stations and commercial water heaters — maintained, repaired and upgraded.
03
Drain & Camera
High-pressure flushing, stack descaling and CCTV inspection of mains and laterals — with footage and a condition report.
04
Backflow Prevention
Certified installation and annual testing of backflow assemblies, with municipal reporting handled on your behalf.
05
24/7 Emergency
Burst risers, floods and no-water events answered day or night — a licensed crew on site to isolate and restore, fast.
06
Renovation Rough-In
Plumbing rough-in and fixtures for amenity upgrades, suite remodels and commercial fit-outs — coordinated with your GC.
// The riser principle
We think in floors,
We think in floors,
not faucets.
A highrise is a vertical machine. Water is pushed up, waste falls down, and one failed section can take a whole stack offline. We map the system end to end and work in windows that respect the building.
- Stack-by-stack isolation — most units stay in service
- Off-hours & weekend windows with management
- Reports, photos & as-builts after every visit
ROOF · TANKSUPPLY
FLOORS 20–40RISERS
FLOORS 1–19BRANCHES
LOBBYMETERS
MECH · PUMPPLANT
// Who we serve
One contractor for the whole portfolio.
Sector 01
Condo Towers
Riser programs, common-element repairs and resident-unit coordination for boards and corporations.
- Risers
- Suite work
- Reserve
Sector 02
Commercial
Offices, retail and mixed-use — washroom cores, domestic water and mechanical systems kept compliant.
- Cores
- Mechanical
- Fit-out
Sector 03
Property Mgmt
One accountable trade partner across your sites — predictable scheduling, clear reporting, one standard.
- Portfolio
- Reporting
- Preventive
0+Buildings under service
0+Years of GTA experience
0hTarget emergency response
0%Licensed, insured & WSIB
// How it works
A predictable run, every job.
Assess
We walk the building, review drawings and document the condition of risers, mechanical rooms and drains.
Scope
A clear, line-item proposal with staging, access plan and timeline written for your board or manager.
Execute
Licensed crews work in coordinated windows, isolating sections to minimise disruption to occupants.
Report
Photos, test results and as-built notes filed after sign-off — ready for your records and reserve fund.
Licensed · Insured · WSIB
// Accountability
The crew that picks up the phone.
No call-centre hand-offs, no mystery sub-trades. A named contact, journeyperson plumbers who know your building, and documentation you can hand straight to the board.
- Fully licensed & insured, WSIB on every site
- Transparent line-item quotes — no surprises
- Reporting written for boards & managers
Dispatch & assessments
Got a building that needs a plumber who gets highrises?
Tell us the property and the problem. We'll book a site assessment — or dispatch the same day if it's an emergency.