Markham area · 2000s and newer
Plumbers in Greensborough
Greensborough is one of the newer corners of Markham, with townhouses and detached homes built from the 2000s into the 2010s, and much of its plumbing still sits behind finished walls nobody has opened.
- Crews familiar with how this neighbourhood was piped
- Main shut-off and pipe material checked on every call
- Price before work, tested before we leave
Homes and pipes in Greensborough
Houses here are mostly PEX on the supply side with a manifold or home-run layout in some models, ABS drains and vents, and a sump pump in the basement. Many came with a capped rough-in for a future washroom. Tankless and high-efficiency power-vent heaters show up more often than in older parts of the city, and they need descaling to keep running well in York Region's hard water.
PEX is forgiving, but its crimp and expansion fittings fail when a joint was made off-square or when a drywall screw nicked a line years ago. When a ceiling stain shows up below a bathroom, we open a small hole, find the fitting and replace it with a new ring or a brass coupling.
Common plumbing calls here
- Tankless heaters throwing error codes from scale on the heat exchanger.
- Leaking PEX fittings above kitchen and laundry ceilings.
- Laundry standpipes overflowing when lint packs the line.
- Basement bathroom finishing using the builder rough-in.
- Outdoor taps cracked after a frost.
See our tankless water heater page for what a descaling flush involves, and the basement bathroom rough-in page if you are planning to finish downstairs.
Seasonal issues
Grading on newer lots is still settling, so downspouts that dump next to the foundation send more water to the weeping tile than they should. Keep the sump discharge clear of snow in winter, or it freezes and the pump runs against a blocked line. In summer, irrigation on new sod drives water use up quickly.
How to reach us
We cover Greensborough from Markham Road out toward Donald Cousens Parkway. Call (365) 334-6254 and tell us the make of your heater if that is the problem; a photo of the label saves a trip. For leaks, shut the nearest valve or the main and keep a bucket under the drip until we arrive.
After any repair we pressure-check the joint, let it sit while we clean up, and look again before we close the access hole.
Keep the sump discharge clear of snow in winter, or it freezes and the pump runs against a blocked line.
From the job notes of Plumbers in Markham
Local file · Greensborough
Under the floors in Greensborough
| Item | What we usually find |
|---|---|
| Main era | 2000s and newer |
| Supply pipe | PEX with manifolds, some copper |
| Drains and sewer | ABS, PVC lateral, sump pit and backwater valve |
| Watch for | Builder-grade fixtures, sump discharge, crimp fittings, condensate lines |
A general picture of the housing stock. Renovations change what is behind any one wall.
First checks on a call here
- Where the main shut-off and meter sit, and whether the valve still turns
- Age and type of the water heater and its venting
- Floor drain, cleanout and any backwater valve
- Supply pipe material visible in the basement ceiling