Marked location
Leak point marked on the floor surface
Slab Leak Inspection in Kearny, NJ
A slab leak inspection is a full check of the water lines under your concrete slab — before you buy a home, before a small sign becomes a big repair, or when your water bill jumps and you want to know why. We run an acoustic sweep, a thermal scan, and a pressure test, then give you a written report with photos. Call us for a quote.
- Copper pinholes
- Warm floors
- High water bills
- Marked before cuttingChalk mark shows the leak point
- Two tools per callAcoustic and thermal confirm together
- Tested before backfillPressure holds before concrete goes in
- Photos of the repairYou see the pipe before it is covered
What our slab leak inspection includes
The inspection covers the full diagnostic, not just a quick listen. You get an acoustic sweep, a thermal scan, a pressure test, and a written report with photos. It is a diagnostic service — repair is quoted separately if we find anything, and you decide whether to proceed.
- Acoustic sweepA technician walks the slab with acoustic listening devices, logging signal strength across the floor to hear any pressurized supply leak.
- Thermal scanA thermal imaging camera scans the floor for the heat trail a hot-water leak leaves, so we can see what the eye cannot.
- Pressure testWe isolate the supply and watch a pressure gauge to confirm whether the system is holding — and whether the loss is on the supply side or the drain side.
- Written report with photosYou get a written report with photos: what we tested, what we found, the marked leak location if there is one, and the repair options.
Slab leak inspection for homes
We inspect slab lines for Kearny homeowners and buyers — before a purchase, before a sale, or when a sign needs an answer. You get a written report you can share.
- Buying an older home
- Selling a home with a slab
- Water bill jumped suddenly
- Warm floor or musty smell
Slab leak inspection for businesses
We inspect slab lines for building owners and property managers — pre-lease checks, insurance documentation, and routine checks on older commercial slabs.
- Multi-unitIsolate each unit to trace shared supply lines
- RetailSweep sales floors before opening hours
- WarehouseGrid large slab-on-grade floors in sections
- OfficeFind leaks under finished floors with minimal disruption
Slab Leak Inspection Kearny NJ explained
Slab Leak Inspection Kearny NJ is a non-invasive diagnostic service that checks the water lines under your concrete slab. We run an acoustic sweep to hear pressurized leaks, a thermal scan to see hot-water trails, and a pressure test to confirm whether the system is holding. We pair those with moisture meter readings to confirm the exact spot before anyone cuts a floor. No guessing, no exploratory demolition.
Most Kearny homes were built with copper pipes that are now decades old, and that copper corrodes from the inside out. A slab leak can run for weeks before it shows, and by then the water bill has doubled and the slab is soaked. An inspection finds it early — before you buy, before you sell, or before a small sign becomes a big repair.
We test first, report what we find, and only then talk about repair.
What to expect during the visit
Every slab leak inspection follows the same six steps. You will know what we are doing and why at each one, and you will get a written report at the end.
Phone triage
We ask three questions: why do you want the inspection, is any floor warm, and has the water bill changed. That tells us what to focus on. Takes five minutes on the phone.
Meter check
On arrival we check the water meter with everything off. A spinning meter means water is going somewhere it should not.
Acoustic sweep
A technician walks the slab with acoustic listening devices, logging signal strength across the floor to hear any pressurized supply leak.
Thermal scan
A thermal imaging camera scans the floor for the heat trail a hot-water leak leaves behind.
Pressure test
We isolate the supply and watch a pressure gauge to confirm whether the system is holding, and whether the loss is supply-side or drain-side.
Tools and methods we use
Acoustic listening devices
The core tool. We use Sewerin and SubSurface Instruments units to hear the frequency of pressurized water escaping a pipe through concrete, tile, and hardwood.
Thermal imaging cameras
Flir cameras read surface temperature differences. A warm strip points to a hot-water leak, a cool patch to cold water, and both help confirm the acoustic hit.
Pressure testing gauges
We isolate the supply and watch the gauge. A steady drop with everything closed confirms a pressurized leak and rules out fixtures, irrigation, and the water heater.
Moisture meters
Pin and pinless meters measure water content in concrete and framing. They tell us how far the moisture has spread from the leak point.
Pipe locators
We trace the actual run of the pipe so the repair crew knows what is above and below it before opening the floor.
Video inspection cameras
RIDGID and General Pipe Cleaners cameras let us look inside drain lines when the leak is on the waste side rather than the supply side.
Supply isolation and pressure test
We close the main, isolate the fixtures, and pressurize the system. If the gauge holds, the leak is not on the supply side. If it drops, we know we are chasing a pressurized line and the acoustic sweep will be productive.
Grid acoustic sweep
We walk the slab in a set grid, logging signal strength at each point and re-checking the peak from two directions. This filters out reflections off rebar and pipe and narrows the location to within a few inches.
When to book a slab leak inspection
Buying a home in Kearny
An older home with copper supply lines under the slab can hide a leak that costs thousands to fix after you move in. An inspection finds it before you close.
Selling a home with a slab
A clean inspection report answers a buyer's questions before they ask them, and a found leak can be fixed on your terms instead of theirs.
Your water bill jumped
A bill that rises with no change in usage means water is going somewhere it should not. An inspection tells you whether the loss is under the slab.
A warm floor or musty smell
A warm strip or a smell that will not clear can be the first sign of a slab leak. An inspection confirms it — or rules it out — before you open anything.
Acoustic leak detection in Kearny conditions
Kearny sits on a mix of pre-war two-families, post-war ranches, and newer townhouse slabs, and each one behaves differently under acoustic testing. The older homes near the Passaic River were plumbed in copper that is now well past its service life, and that copper corrodes from the inside, so we see a lot of pinhole leaks in hot-water lines. The newer slabs have PEX, which fails differently, usually at a fitting, and the sound signature is quieter. Winter matters here too. When temps drop into the teens, supply lines in exterior walls and under unheated slabs are more likely to crack, and we get a run of calls in January and February. We work to the IAPMO Uniform Plumbing Code and follow NJ Department of Environmental Protection Regulations on any discharge. If you need sound leak detection in Kearny NJ, call before noon and we can usually get a technician out promptly.
- ArlingtonMostly 1920s two-families and post-war ranches in Kearny's north-west, within the Kearny Uplands. Copper supply lines under the slab are the most common leak source here.
- Manor SectionPost-war ranches and two-families along the Kearny Avenue corridor, near Riverbank Park. Slab-on-grade additions here often have thinner slabs, which makes acoustic signals easier to hear.
- South KearnyIndustrial east side — warehouses and commercial buildings with thicker slabs, often 6 inches or more. Acoustic signals are muffled by the thicker concrete, so we add thermal imaging or electronic tracing to confirm.
- Kearny Avenue corridorHeavy traffic noise during the day. We schedule acoustic sweeps here in the morning or evening when the ambient sound floor drops and the listening gear can pick up quieter signals.
- Passaic River edgeHigher water table and softer soil. Slab leaks here spread moisture further, so we rely more on moisture meters to map how far the water has traveled.
- Aging copper supply lines in pre-war homesCopper thins from the inside and fails at pinholes, usually on hot-water lines. These produce a strong acoustic signal and are the easiest leaks to locate accurately.
- Freeze-thaw cycles in January and FebruaryTemps in the teens crack supply lines in exterior walls and unheated slabs. We see a spike in emergency calls during cold snaps and hold extra emergency slots for them.
What a slab leak inspection checks under Kearny slabs
Most slab leaks do not announce themselves with a puddle. They show up as a higher bill, a warm floor, or a sound you cannot place. Here are the problems we get called for most often in Kearny.
Water bill doubled with no visible leak
We isolate the supply, sweep the slab acoustically, and pinpoint the break. Most of these turn out to be a pinhole in copper or a failed PEX fitting, and a spot repair closes it promptly. You are paying for water that is soaking into the soil under your house. Left alone, that moisture reaches the foundation and the framing above it.
Warm spot on the floor that keeps growing
We confirm with a thermal imaging camera, then use acoustic locating to hear the exact break. Once marked, we repair or reroute the hot line and re-test it under pressure before closing the floor. A warm patch usually means a hot-water line is leaking under the slab. The heat loosens tile adhesive and can warp hardwood within a few weeks.
Sound of running water when everything is off
We use acoustic listening devices to trace the sound to its source, even through tile and concrete. You get a marked location and a repair plan in the same visit. That noise is pressurized water escaping a pipe. It will not stop on its own, and the longer it runs, the more soil it moves under the slab.
Foundation cracks and sticking doors
We find and stop the water source first, because patching cracks over a live leak is wasted money. Acoustic locating gets us to the pipe, and the repair stabilizes the soil. Soil shifting under a wet slab moves the foundation. Cracks widen, doors stop latching, and tile pops loose. That is structural damage, not a plumbing nuisance.
We find the leak before we open the floor, so you pay for one repair, not a remodel.
No random demolition
We mark the leak within a few inches before any concrete is opened. That means one small access cut instead of jackhammering a whole room. On a typical 12x14 foot slab, precise locating means one small access cut instead of jackhammering a whole room.
Lower water bills fast
A slab leak can waste thousands of gallons a month. Once we pinpoint and repair the line, most homeowners see their next Kearny water bill drop back to normal. Catching it in the first billing cycle is the difference between a repair and a remodel.
Stops mold before it spreads
Water under a slab wicks into drywall, baseboards, and carpet pad. Mold growth can start in 24 to 48 hours in a damp crawlspace or basement. Acoustic locating gets us to the source while the damage is still a wet spot, not a remediation job.
Protects your foundation
Constant moisture under a slab softens soil, and softened soil shifts. That shows up as foundation cracks, sticking doors, and tile that pops loose. Finding the leak early keeps the soil stable and your foundation where it belongs.
What you receive
Clear records you can keep and share.
Reading photos
Acoustic and thermal images from the visit
Repair options
Spot repair, reroute, or liner with pricing
What a slab leak inspection can and cannot tell you
It finds active leaks
An inspection finds leaks that are running now — a supply leak hissing under the slab, or a hot-water trail a thermal camera can see.
It cannot see through concrete
No inspection sees the pipe itself. We read sound, heat, and pressure, and we confirm with a second method before we mark a spot.
It cannot predict future leaks
A clean inspection means no active leak today. It does not promise the lines will never fail — copper keeps ageing, and soil keeps moving.
Slab leak detection around Kearny
Outside these areas? Call and ask if we cover your street. +16462099461
Every job is quoted before we start. Call us and we will give you a written estimate before we cut anything.
It is a diagnostic check of the water lines under your slab: an acoustic sweep, a thermal scan, and a pressure test, with a written report and photos. It finds active leaks — it is not a repair.
Yes, especially for older homes with copper supply lines under the slab. A slab leak is expensive to fix after you move in, and an inspection finds it before you close.
A written report with photos: what we tested, what we found, the marked leak location if there is one, and the repair options. You can share it with your insurer, your buyer, or your seller.
Book Slab Leak Inspection Kearny NJ today
If your water bill jumped or a floor feels warm, do not wait for the next billing cycle. Call us, describe what you are hearing, and we will get a technician out to locate the leak and give you a repair price. We find the leak and fix what we find.
Get in Touch With Us
Call us at +16462099461 and we will ask a few questions about your water bill, your floor, and any sounds you hear. Most calls get a scheduled visit. We serve Kearny, NJ 07032, and we are open Monday through Friday from 8 a.m. to 6 p.m.
- Phone+16462099461
- Address102 Passaic Ave, Kearny, NJ 07032