Water Leak Detection in Frisco, Plano, McKinney 24/7 plumber

Some leaks are loud, water through the ceiling, a floor that swells up, mold in the corner. Those you spot and you call somebody. The ones that quietly drain your wallet are the hidden leaks: a line weeping behind a wall or under the slab for months, showing up as nothing but a high water bill or a smell you can’t place. At FPP Plumbing, we run water leak detection across Frisco, Plano, and McKinney with acoustic gear and thermal cameras, so we find the exact spot instead of guessing. Not sure what you’re dealing with? Here are the signs of a hidden leak and how to check yourself.
The Leaks You Don’t See Are the Ones That Hurt
When water’s pouring through a ceiling, at least you know. The leak that does real damage is the slow one nobody catches, quietly rotting studs and feeding mold behind the drywall while the family goes on with their week.
We’ve opened walls that looked perfectly fine and found framing you could push a thumb through. That’s months of a leak nobody knew about. Caught early it’s a cheap afternoon. Caught late it’s framing, drywall, and new floors and yeah, sometimes we cut into that wall to reach it, but we cut the right one because we found it first.
Signs You’ve Got a Hidden Leak
Call us if you’re seeing any of these:
• Water bill jumped and your usage didn’t
• Meter still spinning after everything’s shut off
• Warm or damp spot on the floor
• Musty smell that won’t go away
• Water pressure dropped for no reason
• Drywall cracking or floor warping
Meter spinning and you think it’s out in the yard? You can check that yourself before we come out, here’s how to find a yard leak step by step.
Stuff We’ve Actually Found Behind Walls
Every leak’s got a story, and we’ve seen hundreds.
A nail somebody shot through a PEX line hanging a cabinet, held for months, then the nail rusted through and let go all at once. A toilet flange leaking slow into the ceiling below; bathroom looked spotless, downstairs was black mold and rotted wood. A copper line in an exterior wall worn to a pinhole by a rock the foundation pushed against it.
And more than once it wasn’t even a supply line, it was the AC condensate line draining behind a wall, or a cracked ice maker line nobody thought to check. Most people don’t. We do. We see this a lot after a remodel, where one bad fitting stays quiet for months.
Why Houses Out Here Leak More
Our clay ground moves. It bakes and shrinks all summer, then swells back after a freeze. That shifting cracks the lines under your slab and works fittings loose. Add hard water chewing copper from the inside, and North Texas leaks more than most places in the country.
That’s why we tell folks here not to sit on it. Water running under a slab washes the soil out from under your foundation. The longer it runs, the more it takes with it.
Right Tools, Not Guesswork
Finding a hidden leak isn’t knocking holes and hoping. Here’s what we run:
• Acoustic sensors to hear water moving inside a wall or under concrete
• Thermal camera to catch the cold trail where water’s escaping
• Pressure testing to pin down which line’s losing it
• Moisture meters to map how far it spread
And years of doing it, the part no tool replaces. We know where these homes hide leaks and how to get to it the smart way.
Early = Cheap. Late = Catastrophe.
We’ve watched people sit on water damage for weeks. By the time they call, a $500 fix has turned into $10,000+ in mold remediation, drywall, and flooring. Leak detection isn’t just about stopping water, it’s about stopping the damage before it spreads.
FAQ Water Leak Detection
How do I know if I have a hidden water leak?
Bill spiked out of nowhere? Damp floor? Hissing in the wall? If there’s no leak you can see, it’s usually hiding. We’ve found them under slabs and behind showers.
Can a small leak really do that much damage?
Yeah. A slow drip ruins drywall and flooring and gets into your foundation. The longer it runs the worse it gets, and your bill climbs the whole time.
Do you use special equipment to find the leak?
Acoustic sensors, infrared camera, pressure testing — we find it without tearing the house apart. No guessing.
Got a Leak? Let’s Find It
Frisco, Plano, McKinney, Allen, Little Elm, or close by, we’re local, licensed, and ready. We’ll test the system, check the meter, walk the lines, and find the source fast.
Need a plumber in Frisco or a plumber in Plano? Call or text, let’s find it before it gets worse.
