Water Leak Detection & Repair in Pittsburgh, PA
Unexplained water bill, damp drywall, or a musty smell? Connect with a licensed union plumbing contractor to find the leak — and fix it.
Common problems we solve
The leak is located before any drywall or concrete comes out, so the repair is targeted instead of exploratory.
- Slab leaksPinpointed under the slab before any concrete is cut.
- Behind-wall leaksThermal imaging and moisture mapping before opening drywall.
- Supply-line leaksPressure testing to isolate the affected branch.
- Repair, not just diagnosisFound and fixed by the same contractor.
Water actively pouring or flooding?
That is an emergency, not a leak search. Shut off your main water valve and call now.
Emergency plumbingHow our service works
- 1Call
A dispatcher answers 24/7.
- 2Explain the problem
Tell us what is happening and where you are.
- 3Get connected
We connect you with an available participating UA Local 27 contractor that serves your area.
- 4Get a quote
The plumber diagnoses the problem and gives you a price before work begins.
Signs of a hidden water leak
Unexplained high water bill
Usage jumps with no change in your habits.
Meter moving with everything off
Turn off every fixture and watch the meter. If it still moves, water is going somewhere.
Damp or stained drywall
Water stains, bubbling paint, or soft spots on walls and ceilings.
Musty or moldy odors
A persistent smell in a room or closet with no visible water.
Warm spots on floors
A warm patch on a slab or tile floor often means a hot-water line leaking underneath.
Sound of running water
Hissing or running water when nothing is on.
How leak detection works
Confirm the leak
A meter test with every fixture off confirms water is being lost.
Narrow it down
Shutting off sections and pressure testing tells whether it is hot or cold, inside or outside, supply or drain.
Pinpoint it
Acoustic listening equipment, thermal imaging, and moisture meters locate the spot without opening walls.
Mark and explain
You are shown where the leak is and what the repair involves before anything is opened.
Finding the leak vs. repairing it
Detection and repair are separate steps, and they are priced separately.
Leak detection
- Confirms there is a leak
- Locates it and identifies which line
- Recommends a repair approach
Leak repair
- Opens access at the marked spot
- Replaces or reroutes the damaged pipe
- Pressure-tests the line before closing up
- Drywall, flooring, or concrete restoration is usually handled separately
Why choose a UA Local 27 contractor?
Real union hall, real apprentices, real Pittsburgh plumbers. The plumber dispatched on your leak detection call trained here — at the UA Local 27 headquarters and training center in Coraopolis. Five years, 10,000 hours, taught by veterans who've been on Pittsburgh jobs their whole careers.
Send a message and a licensed union plumber will call you back within the hour.