#1 Slab Leak Detection in Mercer County New Jersey
🏆 Leading Leak Detection for Residents & Local Businesses | Fast, Accurate & Non-Invasive
Why Finding Slab or Under-the-Slab Water Leaks is Critical 
Slab leaks are a major hidden threat’s to your property. They can slowly erode your home or business’s structural integrity, skyrocket your water bills, promote dangerous mold growth, and even render a property unlivable if left unchecked.
The good news? You don’t have to let it get worse.
At First Class Leak Detection in Mercer County’s, we focus on slab leak detection in Mercer County, New Jersey fast, precisely, and without damage — saving you stress and unnecessary costs
Proudly serving Mercer County and surrounding areas, we are proud to be the preferred for both property owners across the region.
Understanding Slab Leaks
A slab water leak takes place when a pipe under the concrete slab of your house and/or building develops a leak. These water leak are often caused by:
Aging or corroded pipes
Poor installation or construction defects
Shifting soil or foundation movement
High water pressure and/or temperature imbalances

Because the water leak is out of sight underneath concrete floor, the signs are usually subtle until major damage occurs.
Signs You May Have an Under-Slab Water Leak
Look out for the following common indications:
Damp spots or warm areas on flooring surfaces
Fractures in walls or flooring
Sound of running water especially if no faucets been use
Mildew or mold odors
Very low water pressure
When you notice these kinds of signs, don’t wait! Early detection is key to preventing expensive repairs and maintenance.
Why Early Slab Water Leak Detection Is Crucial
Unchecked slab leaks can cause:
Foundation damage: Restoring a foundation could cost tens of thousands of dollars
Structural instability: Over time, leaks may wear down support structures.
Health risks: Black mold growth could lead to respiratory issues.
High utility bills: Leaks waste hundreds of gallons of water every month.
Property devaluation: Damage as a result of water leak can significantly lower property value.
Finding water leaks early saves both your money and also your property.
Homes with slab structure, where a thick concrete pad is poured entirely on on the surface, should have concrete slab flooring in places where durability, moisture resistance, and low-maintenance are often key considerations.
Below you will find some typical locations where you might come accross concrete Slab water leak:
- Kitchen Slab Water Leaks
- Bathroom Slab Leak
- Living Room Slab Water Leaks
- Garage Slab Water Leak
- Laundry Room Slab Leaks
- Basement Concrete Slab Water Leak
- Crawlspace Concrete Slab Leaks






🛠️ Stop Costly Water Damage: Expert Slab Leak Detection in Mercer County
Why Choose Us?

We’re delighted to offer the #1 slab leak detection in Mercer County New Jersey — here’s why so many local homeowners and organizations trust us for Slab Leak Detection in Mercer County:
Advanced Equipment
We use state-of-the-art technology to identify leaks without damaging the floors and/or foundation. Our equipment includes:
- Ultrasonic sensors
- Tracer locating gas
- Infra-red cameras
- Electronic leak detection technologies
- Dampness meters
Result? We pinpoint leaks with beyond compare accuracy and reliability.
Fast & Reliable Service
In regards to water damage and mold, time is everything. We prioritize reliable response times so you can get the answers and solutions you need immediately.
Same-day and/or next-day appointments available
Emergency response for significant leaks
Clear, honest communication at each and every phase
Need Help with an Insurance Claim? We’ve Got You Covered.
At First-Class our expert team your trusted concrete slab leak specialists, we know how nerve-racking it is to discover a slab leak and face homeowners insurance documents.
That’s why we go beyond detection — in addition wehelp with filing your claim the appropriate way.
Once we find a leak, we provide:
Clear detection reports ready for your claim
Leak visuals and data your adjuster can use
Format customized for insurers
Assistance communicating with your contractor or adjuster
Though we don’t file the claim for you, we know what insurance companies typically require.
Want help understanding what might be covered? Ask us — we’ll walk you through it.
Non-Invasive Slab Leak Detection Mercer County, Central Jersey (NJ)
Concered about ripping up your floors? Don’t be.
Our methods are designed to reduce disruption and maximize accuracy:
Non-destructive testing
Precision pinpointing to reduce the area needing cleanup and repair
We work together with your contractor or plumber to make sure of smooth resolution
Trusted Local Experts
We are based right here in NJ, and we are dedicated to helping our local community.
Fully licensed & insured
Dozens of 5-star reviews from local clientele
Friendly, approachable water leak technicians
We treat your property like our own our own
What Our Clients Are Saying
“First Class Leak Detection saved us thousands of dollars by finding a hidden slab leak before it caused major foundation damage. Their technician was friendly, professional, and explained everything clearly. Highly recommended!”
— Lisa M., Near Mercer County NJ -homeowner
“We suspected a slab leak under our office building. The team arrived the same day, found the leak fast, and provided a detailed report so we could get it repaired quickly. Great service!”
— David T., Business Owner in NJ
🛠️ Call First Class Leak Detection Mercer County NJ, for a free slab leak Detection estimate
What Sets First Class Leak Detection Apart
When you choose us for slab leak detection Mercer County, you get:
Early detection saves thousands of dollars
No unnecessary floor removal required
Licensed, insured, and fully qualified leak detection specialists
Clear communication and honest pricing — no surprises
Rapid turnaround to minimize water loss in addition to property risk
Serving Mercer County and Nearby Towns
We proudly provide slab leak detection services in Mercer County NJ and Surrounding.
Our Proven Leak Detection Process
Initial Consultation

We start with a discussion to discover your concerns and signs or symptoms.
2️⃣ On-Site Inspection
Our technician performs a thorough inspection utilizing advanced equipment.
3️⃣ Accurate Leak Detection
We accurately locate the leak — no guess work involved.
4️⃣ Detailed Report & As well as Recommendations
First class leak detection provide a clear report of our discoveries and work with your local plumber or contractor on next steps.
5️⃣ On-going Support
We are here to answer questions and provide additional support if needed.
📋 Other Leak Services Provided
- ✅ Kitchen Leak Detection
- ✅ Hot Water Leak Detection
- ✅ Internal Plumbing Leak Detection
- ✅ Water Mains Leak Detection
- ✅ Attic Leak Detection
- ✅ Leak Detection for Businesses
- ✅ Outdoor Irrigation Leak Services
- ✅ Swimming Pool Leak Location and Leak Location for Spas and Fountains
Our experts handle even the toughest-to-find leaks.
Answers to Your Slab Leak Questions
Most inspections take 1-2 hours, depending on the extent of the issue.
Definitely — We offer Slab water leak detection in Mercer County and all close by towns.
We work with both homes and businesses throughout the area, therefore we bring fast, accurate service wherever you might need us.
It depends on your policy and what caused the leak.
In many cases, your policy could include coverage for **the damage resulting from a slab water leak**, for example floors, drywall, or basic foundation repairs.
However, the **cost of detecting the leak** and the pipe repair is often excluded, unless the cause was a **covered accident** like freezing or rupture.
In most cases, No. Our advanced, non-invasive tools allow us to accurately find leaks without destructive testing.
Our areas of expertiese include detection only — but we supply a detailed report your personal local plumber are able to use to finish the repairs, to complete the repair. We are happy to refer you to trusted partners.
Our rates are competitive and range by property size. Call us for a without charge estimate!
Book Your Slab Leak Detection Appointment Today!
Slab leaks are serious — but with First Class Leak Detectionon your side, they don’t need to be hectic.
Call today for a FREE quote and quick, professional slab leak detection in Mercer County New Jersey and nearby neighborhoods!
732-253-4900
Schedule your inspection today — spots fill fast! – Click to Schedule online
Why Local Matters
We’re not a nationwide chain — we are your neighbors in Mercer County NJ. We understand local homes, local water systems, and local building codes.
When choosing First Class Leak Detection, you get personal service from a team that actually cares.
DIY - Discover Hidden Water Leaks Before They Cause Major Damage!
Within this Do-it-yourself leak detection guide, we’ll show you how to identify indication of water leaks at your home—without removing down walls. Learn how to utilize simple tools like a pressure gauge, infra-red thermometer, and even your ears to identify potential plumbing leaks. We’ll walk you through inspecting fixtures, home appliances, and pipe connections, plus how to tell when it’s time to call in a professional. Save money, protect your property, and get peace of mind—watch right away and have control of your home’s water system! - Slab Leak Detection Mercer County, Central Jersey
If in case you have any emergency slab leak detection need, simply call our 24 hour emergency help line
Fast & Reliable Service for Slab Leak Detection Service for Mercer County residence
732-253-4900
Mercer County Service Area
Mercer County Bear Tavern |
Local Mercer County, NJ Info
Contact Us Today!

First Class Leak Detection by ASR
First Class Leak Detection a Leak Detection Division of AllStates Services LLC.
Are you searching leak detection near me online? Our team of leak detection specialists provides 24-hour emergency.
We identify and solve leaks for both commercial and residential customers that elude detection. With an exceptional success rate of 99.8% , our non-intrusive surveys ensure efficient and effective results for our clients.
First Class Leak Detection
- 28 Harrison Ave Building 602 Englishtown, NJ 07726
- 732-253-4900
- FCLeakDetection@HireASR.com
- Monday - Friday 9am - 5pm

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