Markham Plumber: Trusted Emergency Plumbing for Markham & York Region

Plumbing in York Region's Largest City: Heritage Villages, New Suburbs & Large Family Homes

Markham occupies a unique position in the GTA: it is simultaneously one of the region's oldest settled communities and one of its fastest-growing. The Unionville heritage district, centred on historic Main Street Unionville, contains buildings dating to the 1800s. Plumbing in these structures is a specialist endeavour, involving original cast iron drain stacks, galvanized supply lines, and in some cases remnants of early 20th-century plumbing that has been layered over with partial upgrades across decades of renovation. When a pipe fails or a drain backs up completely, fast emergency plumbing response is critical to minimizing damage.

Moving outward from Unionville, communities like Milliken, Thornhill (Markham portion), and the older parts of Markham Village contain 1970s through 1990s housing stock. These homes typically have copper supply lines that are reaching the end of their service life, ABS drain systems with aging cleanouts, and water heater repair or replacement needs as original units are past their expected service life. The main sewer lateral in homes from this era is usually PVC or ABS, though some older properties still have Orangeburg pipe, a compressed fibre material that collapses over time.

Markham's most recent growth has created substantial new communities in Cornell, Cathedraltown, Greensborough, and Berczy Village. These master-planned neighbourhoods feature large single-family and townhome builds, often with 3–5 bedrooms and multiple full bathrooms. Sump pumps are standard equipment in virtually all new Markham builds, required by the City and York Region as part of the subdivision drainage management plan. We provide annual sump pump inspections and battery backup installations for hundreds of these homes, and recommend a sewer camera inspection for any home experiencing recurring drain slowdowns.

Markham's high proportion of large homes, many over 3,000 square feet, means high plumbing demand. A five-bathroom home with a finished basement, bar sink, and outdoor irrigation system has dozens of plumbing connections and multiple points of potential failure. We are experienced in diagnosing complex multi-zone plumbing systems and providing maintenance plans that keep large Markham homes running efficiently.

York Region provides water and wastewater service to Markham. York Region's water comes from Lake Ontario via the York-Durham servicing agreement and is treated to high standards. York Region's permitting process governs all water service connections, meter changes, and major drain work within Markham. Our team is well-versed in York Region's inspection and permit requirements.