Leak Detection & Repair
Leaks range from an obvious drip under a sink to a slow hidden leak inside a wall. Left alone, small leaks can turn into structural damage, mould, and much larger repair bills. We locate the source and explain the repair options on site before work begins.
Accurate pricing is provided after an on-site plumbing inspection. Repair options and pricing are explained before approved work begins.
Read our in-depth guide on leak detection & repair: common causes, what to try, and when to call a plumber.
Read the Leak Detection & Repair guideProblems this covers
- Drip under the sink or behind a fixture
- Wet spot on a ceiling or wall with no obvious source
- Rising water bill with no obvious cause
- Musty smell around a bathroom or kitchen
- Leaking faucet or fixture that has failed rebuilds
- Toilet leaking at the base
What the service involves
- 1Visual inspection and moisture check at the suspected area.
- 2Isolate supply lines and test pressure where needed.
- 3Locate the leak with the least-invasive access possible.
- 4Recommend repair scope and price before opening walls or ceilings.
Related services
FAQs about leak detection & repair
How do you find a leak inside a wall without tearing everything open?+
We start with the smallest reasonable access point after locating the leak by moisture, sound, and pressure testing. Only what's necessary gets opened.
My water bill jumped, could it be a hidden leak?+
Possibly. We can help isolate whether the source is a fixture, a supply line, or something else, and explain the repair options on site.
Do you repair leaks in copper and PEX?+
Yes. Both copper and PEX systems are common in this area and both are repairable.
Will you repair drywall and finishes after the fix?+
We focus on the plumbing repair itself. Drywall and finish repair is usually handled separately, and we're happy to explain what's involved.
Get a plumber in Mississauga on the way
Call for immediate help, or send us your details and a plumber will follow up to confirm scheduling based on urgency and availability.
- Service areaMississauga and surrounding Ontario, see our other locations for adjacent cities.
- HoursOpen 24 hours, 7 days a week
Our locations
Express Plumbing serves five active cities across the Greater Toronto Area.