Leak Detection in Phoenix — Find It Without Tearing Up Your Home
Water running when nothing is on. A water bill that spiked. Wet drywall with no visible source. We find hidden leaks using electronic detection — no exploratory demolition.
Hidden leaks can run for months before you find them — inside walls, under floors, above ceilings. By the time you see water damage, the mold has often already started. The water bill jump is usually the first hint.
Brian McQuistion Plumbing & Drain uses acoustic sensors, pressure testing, and thermal imaging to locate water leaks precisely — without punching holes in your walls to look for them. We find the leak first, then we open only what needs to be opened to make the repair.
Signs You May Have a Hidden Leak
- Water bill spiked without a change in usage
- Sound of running water when everything is turned off
- Wet or soft drywall, ceiling staining, or peeling paint
- Musty smell from inside walls or under flooring
- Warm or hot spots on floors (hot water line leak)
- Meter continues to run after all fixtures are off
Our Detection Process
We start with a pressure test to confirm there's an active leak and isolate which system — supply, hot, cold, or drain. Then we use acoustic detection equipment to listen for the leak through finished surfaces. Thermal imaging identifies temperature differentials that reveal active water movement. Combining these tools, we pinpoint the location accurately before we recommend any repair.
Frequently Asked Questions
Leak detection inspections typically run $150 to $350 depending on the scope and equipment needed. If we find and repair the leak in the same visit, the detection cost is often applied toward the repair.
Turn off every fixture and appliance that uses water. If the water meter is still moving, you have an active leak somewhere in your supply system. Call us — we can locate it with acoustic and pressure testing equipment.
In most cases, yes. We use acoustic sensors and thermal imaging to locate leaks behind walls, under slabs, and in ceilings without opening them. We only cut where we need to make the repair, not to find it.