NEW HAVEN PLUMBING SERVICE
Leak detection in New Haven, CT
Water bill spiking or a stain you can't trace? Licensed plumbers find hidden leaks before the drywall comes down.
Updated September 2026 · New Haven, CT
The worst leaks are the ones you can't see: a pinhole in a pipe inside the wall, a supply line dripping under the floor, or a water service line leaking underground between the street and your basement.
We use acoustic listening gear, thermal cameras and pressure tests to pinpoint the spot, so only a small section of wall or floor gets opened.
Call 203-654-9405 any hour, or request a callback below.
Signs you need leak detection
- A water bill much higher than usual
- The water meter moving when nothing is running
- Warm spots on the floor or the sound of running water in a wall
- Stains, bubbling paint or soft drywall
- A damp or musty smell with no visible source
What to do right now
- Turn off every faucet and appliance, then watch the water meter for 15 minutes.
- If the meter moves, shut off the main until a plumber can look.
- Take photos of any stains or damage for insurance.
- Check under sinks, behind toilets and around the water heater first.
- Call us to pinpoint the leak before anyone starts cutting open walls.
What it costs
Leak detection is usually priced as its own service call, with the repair quoted separately once the leak is found. Ask for both numbers up front.
More detail: Why is my water pressure suddenly low?
Questions we hear a lot
How do you find a leak inside a wall?
We use acoustic listening devices, thermal imaging and pressure testing to narrow it down, then open the smallest section we can to reach the pipe.
Will the water company find a leak on my side of the meter?
The Regional Water Authority handles its own mains. Leaks on the house side of the meter, and usually the service line on your property, are the homeowner's to find and fix.
Do you do leak detection outside New Haven?
Yes. We find hidden water leaks in East Haven, North Haven, Hamden, West Haven and the rest of the towns we cover.
What should I do if I find a cracked pipe?
Shut the valve feeding it, or the main if there isn't one, and put a bucket under it. A cracked pipe can split wide open under pressure, so call before it gets worse.
Leak detection by town
Where we work
- Leak detection in East Rock
- Leak detection in Fair Haven
- Leak detection in Westville
- Leak detection in Hamden
- Leak detection in West Haven
- Leak detection in East Haven
- Leak detection in North Haven
- Leak detection in Branford
- Leak detection in Orange
- Leak detection in Woodbridge
- Leak detection in Milford
- Leak detection in Wallingford
- Leak detection in Wooster Square
- Leak detection in the Annex
- Leak detection in Beaver Hills
- Leak detection in Dixwell
- Leak detection in Morris Cove
Other plumbing services
Dealing with this right now?
Call and a licensed New Haven plumber from our team can be there today.
Call 203-654-9405Licensed and insured plumbers · Phones answered 24/7
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