A hidden leak is a slow, expensive kind of damage. It runs behind a wall or under the slab for weeks, quietly rotting framing and feeding mold, and the first hint you get is often a water bill that jumped for no reason. If your usage hasn't changed but the bill did, there's almost certainly water escaping somewhere you can't see.
We find it without guessing and without tearing your house apart. Acoustic sensors let us hear water moving inside a pressurized line through drywall, tile, or concrete, and thermal imaging shows the temperature signature of water where it doesn't belong. Between the two, we can put a finger on the leak within inches before we open anything.
That precision matters most under a slab. A lot of the mid-century ranch homes around Flushing sit on concrete, and a slab leak found early is a small, targeted repair — found late, it's a jackhammered floor.
We also replace the aging galvanized and lead service lines behind many of these leaks, converting them to safe PEX or copper. If your pressure has been fading too, our pipe repair and repiping work often solves both at once.
How hidden leaks show up
A water bill that spiked for no reason
If nothing about your usage changed but the bill climbed, water is running somewhere you can't see. It's the single most reliable sign of a hidden leak.
The sound of running water when everything's off
A faint hiss or trickle with every fixture closed means a supply line is leaking under pressure. Your water meter still creeping is the tell that confirms it.
Warm spots or cracks in a slab floor
A warm patch on a concrete floor often marks a hot-water slab leak beneath it. New cracks or heaving in the slab can follow as the water undermines the concrete.
Stains, bubbling paint, or a musty smell
Discoloration on walls or ceilings, paint that bubbles, or a persistent musty odor all point to water escaping inside the structure and feeding mold.
Low pressure with no clear cause
A leak bleeds off pressure before it reaches your fixtures. In older homes it often overlaps with corroded galvanized pipe that's closing up from the inside.
What's Included
- Non-invasive detection with acoustic sensors and thermal imaging
- Slab-leak location under concrete foundations
- Hidden leak location behind walls, under floors, and in ceilings
- Water-line and service-line leak repair or replacement
- Pinpointing the source behind a sudden spike in your water bill
- Clear before-and-after so you see exactly what was fixed
Our leak-detection process
- 1
We confirm there's a leak
We start at the meter to verify water is escaping and gauge how fast, then isolate whether it's on the supply side, a fixture, or the service line before we hunt for the spot.
- 2
We pinpoint it without demolition
Acoustic listening equipment and thermal cameras let us locate the leak behind walls or under the slab to within inches — so any opening we make is small and deliberate.
- 3
We show you exactly what we found
Before any repair, we walk you to the spot, explain the cause, and lay out the options. You approve a flat-rate price in writing first.
- 4
We make the targeted repair
We fix or reroute the failed section with quality PEX or copper. For a corroded service line, replacement is often smarter than chasing repeat pinhole leaks.
- 5
We pressure-test and verify
We bring the system back up to pressure, confirm the leak is gone at the meter, and check that the repair is dry and solid before we consider the job done.
What Affects the Cost
Detection and repair are two separate parts of the job, and each depends on where the leak hides and how hard it is to reach. No dollar figures until we've located it — here's what drives the eventual quote.
- How accessible the leak is — an open wall versus deep under a slab
- Detection method and time needed to pinpoint the source
- Whether it's a single fitting, a burst section, or a failing service line
- Pipe material and whether we repair a spot or reroute the run
- The extent of any wall, floor, or slab access required to reach it
- Whether replacing old galvanized or lead line is the better long-term fix
- Any restoration of the small opening after the repair
We always give you a written, upfront price before any work begins — no surprises. Call (207) 419-2600 for a free estimate.
Why Flushing Homeowners Choose Us for Leak Detection
We find it without demolition
Acoustic and thermal tools locate the leak precisely, so we open only what we have to — not the whole wall.
Bill-spike specialists
A jump in your water bill with no change in use almost always means a hidden leak; we track it down fast.
Slab-leak experience
Mid-century Flushing homes get slab leaks — we handle the tricky business of locating and repairing them.
Where We Provide Leak Detection
We handle leak detection for homes and businesses across Flushing and all of Genesee County — including Flint, Flushing Township, Swartz Creek, Montrose, Mount Morris, Clio, Burton, Grand Blanc. Don't see your town? See every area we serve or just call — we very likely cover you.
Frequently Asked Questions
How do you find a leak without ripping open walls?
We use acoustic sensors that hear water moving inside pressurized pipe and thermal cameras that see its temperature signature. Together they locate the leak to within inches, so any opening is small.
My bill doubled but I don't see any water. Why?
That's the classic hidden leak. Water is escaping behind a wall, under the slab, or on the buried service line where you can't see it. Detection finds it before the damage compounds.
What's a slab leak and is it serious?
It's a leak in a pipe running under your concrete foundation, common in mid-century homes here. Caught early it's a small repair; ignored, it can undermine the slab and cause structural damage.
Should I repair the pipe or replace the line?
One leak on sound pipe is a simple repair. Repeated pinhole leaks on old galvanized or a lead service line usually mean replacement is the smarter money than fixing the same pipe again and again.
How do you find a leak without tearing up my house?
We use acoustic sensors that hear water escaping under pressure and thermal cameras that spot temperature changes from hidden moisture. That lets us mark the exact spot and open only a small access point instead of guessing.
My water bill spiked but I don't see a leak — what now?
A silent spike almost always means water is escaping where you can't see it: under a slab, behind a wall, or in a supply line. Left alone it wastes water and damages the structure. A detection visit finds it before the damage grows.
