Midtown Plumbing serves Markham from the Vaughan base — drain camera on every truck. Same-day leak detection from Unionville to Cornell, 7 AM to 9 PM. No travel fee.
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Leak detection in Markham means finding hidden pipe leaks — pinhole leaks in copper supply lines, slab leaks, and wall leaks — in homes across Unionville, Markham Village, Cornell, Rouge Park, Greensborough, and every other Markham neighbourhood. Midtown Plumbing serves Markham from the Vaughan base with a drain camera on every truck — most leaks are diagnosed and confirmed in a single visit. Same-day service, transparent pricing, no hidden fees, no travel surcharge. Licensed, insured, and available Monday through Sunday, 7 AM to 9 PM. Call 647-778-9411 or use the form above.
The type of leak found in a Markham home depends almost entirely on when it was built. Each era has different pipe materials — and different failure patterns.
Heritage properties in historic Unionville and along Main Street Markham date to the late 1800s and early 1900s. These homes often have cast iron drain lines and original galvanized steel supply — materials that are now well past their service life. Cast iron drain lines in this age range develop internal corrosion and joint failures that require camera inspection to diagnose accurately.
Residential streets developed in the 1970s and 1980s used copper supply lines now 40–50 years old. Markham is served by York Region water, which contains enough dissolved minerals to accelerate pitting corrosion in aging copper. Pinhole leaks inside finished walls are the most common failure pattern in this era.
Newer Markham communities like Cornell and Greensborough use PEX supply lines, which resist corrosion well. Leaks in these homes typically occur at fixture connections, push-fit fittings, and manifold transition points — not along the pipe runs. A drain camera inspection confirms the location before any repair.
From a pinhole leak in a copper wall line to a burst supply fitting — same-day leak detection, transparent pricing, no hidden fees.
Pinhole leaks in copper supply lines, slab leaks, and wall leaks — found without unnecessary demolition. Midtown Plumbing uses pressure testing and thermal scanning to locate the source before any wall is opened.
Leak detectionOnce a leak is found, the damaged section is repaired or replaced using code-compliant copper, PEX, or push-fit fittings. Most Markham repairs are completed in one visit — parts are carried on the truck.
Pipe repairA burst supply line or sudden flood needs an immediate response. Midtown Plumbing serves Markham from Vaughan — drain camera on the truck means faster diagnosis from the moment arrival. Call 647-778-9411 now.
Emergency plumberA homeowner in Markham Village noticed a consistent uptick in the water bill across four months with no visible leaks at any fixture. A pressure isolation test found the leak isolated to the south branch of the supply system. Thermal imaging pinpointed a pinhole in the 1″ copper main supply inside the basement ceiling — the home was built in 1978. The section was repaired without wall demolition.
This is one of the most common leak patterns in 1970s and 1980s Markham homes. A water bill that climbs month after month — with no visible cause — is often a pinhole leak hiding behind drywall or above a finished ceiling. The longer it goes undetected, the more damage accumulates behind the surface. Early diagnosis keeps the repair scope small. For a full overview of leak detection methods, visit the leak detection service page.
I had a great experience with Andrew. He responded immediately to my service call and arrived promptly, which was a big relief. Instead of pushing a quick install, he took the time to explain why it was better to invest in a good-quality, branded kitchen faucet rather than a cheap one that could cause leaks and problems later. His advice was honest, practical, and clearly in my best interest. He was knowledgeable, professional, and very easy to deal with. I truly appreciated his integrity and the way he focused on long-term reliability rather than just finishing the job quickly. I highly recommend him to anyone looking for a trustworthy and skilled plumber.
Andrew came quickly and solved our issues. Even explained our setup and fixed small issue - not what called for. Really appreciate it.
Highly recommend. Responded to an emergency broken valve while I was trying to remove my washer. Very professional and takes the time to explain what needs to be fixed. In addition, would also give advice to avoid any future issues. Will definitely use them again for any plumbing need. Thank you!!
Leak detection is one part of the full range of plumbing work Midtown Plumbing handles across Markham — including drain cleaning, pipe repair, toilet repair, and emergency plumbing. Same-day service, transparent pricing, no hidden fees. Licensed, insured. No travel fee for any Markham address.
For a full overview of Markham service coverage, neighbourhoods, and how Midtown Plumbing approaches plumbing work in Markham specifically, visit the Markham plumber page.
Same-day service, transparent pricing, no hidden fees. Licensed, insured. Drain camera on every truck — the leak is confirmed before any wall is opened.
Call 647-778-9411