Quick answer
Professional leak detection uses electronic listening equipment, thermal imaging and pressure tests to find leaks hidden inside walls, ceilings, slabs and yard lines. Pinpointing the exact spot means a small, targeted repair instead of cutting open large sections of your home.
Leak Detection you can count on
A high water bill with no obvious cause, the sound of running water when every tap is off, or a warm spot on the floor are classic signs of a hidden leak. Left alone, even a slow leak wastes thousands of gallons a year and damages framing, drywall and foundations.
Our technicians start with your water meter to confirm a leak exists, then isolate the system to narrow down where it is. Acoustic sensors listen for escaping water, thermal cameras spot temperature changes from hot-water leaks, and pressure tests confirm which line is losing water.
Signs you need leak detection
- Unexplained spike in your water bill
- Water meter moves with all fixtures off
- Sound of running water inside walls
- Damp drywall, stains or peeling paint
- Musty smell or visible mold
- Warm or damp spots on floors
Noticing any of these? Get it checked before it gets worse.
(469) 555-0142How our leak detection service works
- 1
Confirm the leak
We check the meter and isolate fixtures to confirm water is being lost.
- 2
Narrow it down
Pressure testing separates hot, cold, irrigation and yard lines.
- 3
Pinpoint
Acoustic and thermal tools locate the leak, often within inches.
- 4
Repair options
You get a written report with photos and a flat price for the repair.

What affects the cost of leak detection?
Leak detection pricing depends on the size of the home, the number of lines to test and whether the leak is inside the house, under the slab or in the yard. Finding the exact location first almost always lowers the total repair cost by limiting how much needs to be opened up.
Leak Detection in Dallas–Fort Worth: local insight
With expansive clay soil and long, hot summers, homes across Dallas–Fort Worth see more hidden leaks than most of the country, particularly in copper lines under slab foundations. If your water utility has flagged unusually high usage, a leak detection visit is the fastest way to find out why.
Why homeowners choose Mr. Plumber & HVAC
Flat, upfront price
You approve the price before we start. No hourly meter running.
Same-day & 24/7
Live dispatch around the clock for urgent problems.
Licensed in Texas
Licensed, insured, background-checked technicians.
Written guarantee
If it's not right, we come back and make it right.
Leak Detection near you
We provide leak detection throughout Dallas–Fort Worth, including:
- DallasDallas County
- Fort WorthTarrant County
- PlanoCollin County
- FriscoCollin & Denton Counties
- McKinneyCollin County
- ArlingtonTarrant County
- IrvingDallas County
- GarlandDallas County
- RichardsonDallas & Collin Counties
- AllenCollin County
- CarrolltonDallas, Denton & Collin Counties
- Grand PrairieDallas, Tarrant & Ellis Counties




