Leak Detection Plumbers for Slab Leaks, Pinhole Copper Leaks & Repiping
Tearing open drywall or jackhammering concrete slabs by guesswork causes more damage than the leak itself. Our licensed team uses acoustic ground microphones, thermal imaging, and static pressure gauges with upfront pricing.
How Our Licensed Plumbers Handle Leak Detection & Pipe Repair
An unexplained jump on your monthly municipal water bill, the faint hiss of running water inside a hallway wall when every faucet is off, or a warm damp patch on tile or laminate flooring indicates a pressurized supply leak. Unlike drain leaks that only drip when a fixture is used, domestic hot and cold supply lines stay under 50 to 80 PSI around the clock.
Under-slab copper hot water loops expand and contract against concrete aggregate or acidic soil, wearing pinhole leaks that saturate the sub-base and wick moisture up into baseboards and drywall. Above ground, aging galvanized steel pipes rust shut from the inside out, while older polybutylene and thin Type M copper lines develop pinhole splits at elbows and tees where water velocity and chloramine levels are highest.
Pinpointing concealed leaks requires isolating hot and cold manifolds, measuring static and dynamic house PSI, scanning walls with infrared thermal cameras, and listening through concrete with amplified acoustic ground microphones. Our licensed team provides 24/7 emergency help, same day service, and upfront pricing for targeted spot repairs, manifold reroutes, and whole-branch repiping.
Clues That Point to a Hidden Wall or Under-Slab Water Leak
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01
The triangular red or silver low-flow leak indicator dial on your street water meter continues turning even when every indoor faucet, toilet, and appliance valve is shut off.
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02
A localized warm spot on concrete slab flooring, buckled hardwood planks, or damp carpet padding along an interior hallway or bathroom wall.
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03
Water pressure drops sharply whenever a second fixture is opened, or rusty brown water runs from taps for the first ten seconds after turning them on.
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04
Loud banging or shuddering pipes (water hammer) when washing machine solenoids or single-handle faucets snap shut due to excessive incoming street pressure above 80 PSI.
Our Non-Invasive Leak Detection & Pipe Repair Protocol
How to Check Your Water Meter Before Our Plumber Arrives
Make sure no one inside the home is running water, ice makers, or irrigation, then check the water meter box or basement meter dial. If the small flow triangle or sweep hand is moving, close the main shutoff valve inside your house: if the meter stops spinning, the leak is inside or under the house; if the meter keeps spinning with the house valve closed, the leak is in the underground yard service line between the meter and the foundation.
Direct Slab Spot Repair vs. Overhead Pipe Reroute
Clean mechanical rub-throughs at a single point where a copper riser exits a concrete slab can be repaired quickly through a small access square. However, when an aged under-slab copper loop suffers from widespread soil electrolysis or pitting, capping that underground line at both manifolds and rerouting a continuous, joint-free PEX-A line through interior walls or the ceiling eliminates future slab leaks on that run permanently.
What Influences Leak Detection & Pipe Repair Pricing
Pricing depends on whether the leak is inside an accessible wall/joist bay, buried beneath an interior concrete slab, or along the deep exterior yard service line from the street meter, as well as the length of copper or PEX piping required. Our licensed team provides upfront pricing before opening any surface.
Ready for an on-site inspection and written upfront quote?
Call our 24/7 dispatch desk to schedule same day service with a licensed plumber.
Frequently Asked Questions About Leak Detection & Pipe Repair
We isolate the leaking hot or cold manifold line, apply regulated test pressure, and trace the pipe path using electromagnetic line transmitters and amplified acoustic ground microphones. Pressurized water escaping into compacted sand or gravel generates a distinct high-frequency vibration right over the breach, letting us mark the exact tile or concrete square.
Under-slab copper pipes installed in the 1960s through 1990s were all laid in the same soil conditions at the same time. Opening concrete to solder one pinhole often leaves thinned copper two feet away that can leak months later. Capping the old under-slab loop and running a new overhead PEX or copper line between the manifolds takes the pipe out of the concrete completely.
Pinhole pitting in copper tubing is driven by three main factors: excessive water velocity from oversized pumps or high municipal pressure (>80 PSI) that erodes the protective oxide film inside elbows, aggressive water pH or municipal chloramines, and stray stray pipe-ground currents.
A bell-shaped brass PRV mounted near your main shutoff valve steps high municipal street pressure (often 100 to 150 PSI) down to a safe residential range of 50 to 65 PSI. When its internal rubber diaphragm tears, house pressure spikes to full street pressure—causing toilets to run intermittently, washing machine hoses to bulge, and water heater relief valves to drip.
Polybutylene is a flexible dull-gray plastic pipe (stamped PB2110) installed between 1978 and 1995 that flakes and cracks from the inside when exposed to chlorinated city water. Galvanized steel pipes are dull silver-gray threaded iron pipes that attract a magnet and build up thick internal rust scale that chokes water pressure down to a trickle.
Two hidden culprits account for most invisible high water bills: a silent toilet flapper leak that drains straight down the overflow tube into the sewer without wetting the floor, or a leak in an under-slab or exterior underground main service pipe where water drains directly into sandy soil beneath the foundation.
Cross-linked polyethylene (PEX-A) does not corrode, pit in acidic or chloraminated water, or accumulate mineral scale, and it can expand up to three times its diameter if frozen before returning to its original shape when thawed. Where building codes or UV exposure require rigid metallic piping, we install domestic Type L copper.
Yes. If you turn on a faucet on a freezing morning and no water comes out—meaning an ice blockage has formed but the pipe has not yet ruptured—our plumbers isolate the branch valve, open the downstream spigots to relieve expansion pressure, and thaw the frozen section evenly before the ice splits the copper or brass wall.