Homes and streets in Greensborough
Greensborough lies in north-east Markham, north of 16th Avenue and stretching toward Ninth Line, with Mount Joy GO station nearby. Most of it was built from the early 2000s through the 2010s, mixing detached homes with semis, freehold townhouses and rear-lane streets. Many houses have finished basements and compact mechanical rooms.
Supply lines here are usually PEX, sometimes with copper near the heater, and drains are plastic. Tankless water heaters and high-efficiency gas tanks are common, as are power-vented units venting through the side wall.
Plumbing problems we see there
Newer homes do not mean no problems; they mean different ones. Recurring calls include:
- Hidden leaks at PEX fittings or shower valves behind finished walls and ceilings.
- Tankless heaters showing error codes or reduced flow from scale build-up.
- Shower valves that were set without enough care and now run too hot or too cold.
- Shared walls in townhouses where a leak in one unit shows up next door.
- Outdoor taps not winterized and cracked inside the wall.
Seasonal concerns
North-east Markham catches the wind across open land, and exterior walls can get cold enough to freeze an outdoor tap that was not shut off from inside. Frost-free hose bibs help, but only if the hose is removed. Spring brings sump pump workloads in basements built on clay soil, and summer means watering systems that tie into the house supply.
Services most requested
Leak detection is one of the most common requests here, since finished ceilings hide supply lines so well. Tankless water heater descaling is another, as moderately hard municipal water leaves scale in heat exchangers over time. For the season ahead, our guide to winterizing outdoor taps is worth a few minutes before the first hard frost.
Calling us from Greensborough
Tell us whether your home is detached or attached, whether you have a tankless heater, and if so the model shown on its front panel. Photos of a stain or a heater error code help us arrive with the right parts. We also serve neighbouring Legacy, so streets on either side of the boundary are equally covered.
Because so many Greensborough homes are still relatively young, it is worth checking paperwork before a repair. Builder warranties in Ontario cover certain plumbing defects for set periods, and a quick look through your closing documents may save you a bill. If the warranty does not apply, or the repair is urgent, we take it from there and keep a written note of what we did for your records.
Call (365) 414-5810 to book.
Markham note: village-core houses tend to hide cast iron and galvanized behind plaster, while Cornell and Box Grove builds run PEX to a manifold. We ask the year your house was built so the right fittings ride along on the truck.
Straight from the phone log
My house is under ten years old. Why is it leaking?
Fittings, shower valves and connections can fail early if they were stressed during construction. Check whether any part of the builder's warranty still applies before booking a repair.
How often should a tankless heater be descaled?
It depends on water hardness and use. Many manufacturers suggest an annual flush in moderately hard water; the manual for your model is the best guide.
Ready to get it fixed?
One call, a clear explanation, and work finished tidily before we leave.