💨 Sewer Odor Leak Detection in NJ & Smoke Testing Experts
🔥 Smoke Test Services for Sewer Gas Smells, Vent Pipe Leaks & Drain Odor
Dealing with a mystery sewer gas smell in your home and looking for Sewer Odor Leak Detection in NJ?
You need answers — fast — before the odor becomes a serious health hazard or structural issue.
At First Class Leak Detection, we specialize in safe, accurate, and non-destructive sewer odor leak detection services across New Jersey.
Whether the issue is caused by a broken drain pipe, failed sewer vent, or missing trap seal, our expert team uses advanced tools like smoke testing, sewer cameras, and tracer gas to locate the problem — without tearing open your walls or flooring.
Smelling sewage? Don’t ignore it — it’s a warning sign of a hidden issue.
Sulfur odors, foul smells near drains, or sewer gas in your basement or crawl space are signs of an underground sewer line leak, cracked vent pipe, or open drain system.
If untreated, these leaks can lead to mold, health issues, and even fire hazards due to methane buildup. Insurance may also deny claims if it’s deemed a “long-term issue.”
We help New Jersey homeowners, plumbers, and property managers find the exact source — fast — using non-invasive tools and detailed reports for remediation or insurance filing.
Why Sewer Odor Leaks Are More Dangerous & Costly Than You Think
Health Risks – Sewer gas contains hydrogen sulfide, which can cause nausea, headaches, and respiratory distress.
Fire Hazard – Methane is flammable — sewer leaks can be a hidden ignition risk.
📋 Table of Contents
Hidden Building Damage – Ongoing gas or moisture can rot wood framing and drywall from the inside.
Costly Repairs – Fixing widespread odor issues often requires full pipe or wall replacements.
Don’t wait until symptoms get worse. If you’re searching for sewer odor leak detection near me in New Jersey — First Class Leak Detection is here to help.
Drain & Sewer Leak Stats – Why Early Detection Matters
According to the American Society of Civil Engineers (ASCE), the U.S. loses over 6 billion gallons of treated water every single day due to hidden pipe leaks — much of it from deteriorating drain and sewer systems.
If you’re searching for top-rated sewer or drain leak detection in New Jersey, you’re in the right place. At First Class Leak Detection, we specialize in locating underground leaks caused by broken, cracked, or disconnected sewer lines using non-invasive technology that avoids costly demolition.
✅ Zero Unnecessary Digging — We use acoustic sensors, sewer cameras, and tracer gas testing to find leaks fast without damaging your floors, walls, or landscaping.
✅ Fast Scheduling & Detailed Reports — Perfect for homeowners, plumbers, property managers, and insurance documentation.
🔹 Top Features of Our Smoke Testing & Sewer Odor Detection in NJ
Sewer Odor Leak Detection in NJ — Fast, Clean & Non-Invasive
Tired of that sewer gas smell in your home or building? It’s more than just unpleasant — it could point to a cracked drain, dry trap, or leaking vent pipe.
Our team uses professional-grade smoke testing equipment to safely push visible, non-toxic smoke through your drain and vent system. This reveals exactly where sewer gases are escaping — whether it’s under a sink, behind a wall, or in your crawl space.
No guesswork. No demolition. Just fast, precise sewer odor detection that saves you time, money, and property damage.
Sewer Odor Leak Detection in NJ
Smelling sewer gas inside your home or business?
That sulfur or methane smell could be a sign of a hidden sewer gas leak — and it’s more than just unpleasant.
It may indicate a broken trap, cracked drain pipe, or leaking sewer vent inside your walls or floors.
At First Class Leak Detection, we use non-invasive odor detection tools like smoke testing and gas sensors to pinpoint the exact source of foul smells — quickly and safely.
- Sewer gas smell in the basement or crawl space
- Foul odor from kitchen drains
- Persistent sulfur smell in bathroom
- Methane or sewage odor with no visible leak
- Plumbing trap or vent pipe failure
Sewer Odor & Drain Leak Detection – Central Jersey & Beyond 
Smoke Test Sewer System – NJ
Smell sewer gas but can’t find the source?
A professional smoke test of your sewer system can reveal hidden leaks, vent failures, and plumbing defects fast — without tearing open floors or walls.
Our team uses controlled, non-toxic smoke to safely pressurize your sewer lines. If there’s a crack, gap, or faulty trap, we’ll see smoke escaping from the exact location — indoors or out.
- Smoke test sewer leaks under slabs
- Sewer line smoke test in NJ homes and buildings
- Find sewer gas leaks inside walls, attics, or basements
- Pinpoint failed drain lines with no demolition
Whether it’s a faint odor or full-blown stench, smoke testing is the gold standard for pinpointing sewer odor leaks — quickly and affordably.
Schedule a Sewer Smoke Test in Central NJ — Same-Day & Emergency Appointments Available.
🛑 Sewer Gas & Vent Pipe Leak Detection – NJ
Smelling rotten eggs, sulfur, or methane inside your home?
You might have a cracked vent stack, dry P-trap, or a broken seal — all of which allow sewer gases to leak into your living space.
We perform expert odor tracing, smoke testing, and pressure diagnostics to find vent and trap failures quickly and safely:
- Cracked or separated sewer vent stacks
- Dry or faulty P-traps under tubs and sinks
- Improperly terminated or unvented drain lines
- Methane or hydrogen sulfide intrusion
These odor leaks can cause serious health issues and damage — especially in basements, attics, or closed wall cavities. We detect them fast, without demolition.
📞 Schedule a Sewer Gas Leak Inspection in NJ Today or call 732‑253‑4900.
🏆 Trusted Sewer Odor & Smoke Testing Experts in New Jersey — Here’s Why
✅ What We Offer
- 🎯 Precise Odor Source Detection
- 🛡️ Non-Invasive Smoke Testing
- 🧾 Insurance-Ready Reports
- ⏱️ Fast Response Times
- 👷 Licensed & Fully Insured
💡 How This Helps You
- No Guesswork — We Pinpoint the Leak
- No Damage to Your Home
- Claim-Ready Reports for Adjusters
- Quick Scheduling — Emergency Slots
- Trusted by Homeowners Across NJ
Claim Support for Sewer Odor & Smoke Leak Detection in NJ
We provide everything your insurance adjuster needs — including detailed photos, infrared scans, and precise source location. Our reports help prevent denied claims by offering clear proof of loss and professional documentation.
Many homeowners don’t realize insurers often deny water damage claims if the leak is undocumented or considered long-term. We help you avoid that with clear, accurate evidence.
Photo Documentation — Clear images of the leak location
Thermal & Moisture Readings — Proof of moisture intrusion
Adjuster-Friendly Reports — Easy-to-read summaries
Adjuster Communication — We can coordinate with your rep
This kind of detailed documentation can be the difference between a denied and a fully covered insurance claim.
Your adjuster needs proof — and that’s exactly what we provide with every leak detection service.
⚙️ Advanced Equipment for Sewer Odor Leak Detection in New Jersey
We use state-of-the-art, non-invasive technology to find sewer gas and drain line leaks
without breaking concrete, cutting drywall, or digging up your yard.
These precision tools allow us to detect even the most hidden sewer odor sources — saving time, avoiding damage, and ensuring accurate results.
- Ultrasonic Acoustic Sensors
– Pinpoint sewer odor leaks by detecting sound variations underground - Tracer Gas Systems – Safely pressurize lines to locate even micro-cracks causing odor
- Thermal Imaging Cameras
– Spot hidden vapor or temperature anomalies in walls, floors, or soil
- Electronic Pipe Locating Tools – Map buried sewer vent lines without excavation
- Moisture Meters & Hygrometers – Confirm sewer-related humidity behind walls or under floors
✅ The result? Pinpoint accuracy, minimal disruption, and total confidence — for both homeowners and insurance adjusters.
❓ Frequently Asked Questions About Sewer Odor Leak Detection in NJ
A smoke test is a safe and effective way to find hidden leaks in your sewer system. We inject non-toxic smoke into the drain lines, and any escaping smoke indicates cracks, breaks, or missing vent caps — helping us pinpoint odor issues quickly without damage.
Sewer gas smells are usually caused by leaks in drain or vent pipes, dried-out traps, broken seals, or cracks under the slab. These can let methane or hydrogen sulfide gas escape into your home. Our detection process identifies the source without guesswork.
Yes! We use non-invasive methods like smoke testing, tracer gas, thermal imaging, and acoustic detection. These tools help us find the source of odors behind walls, under floors, or underground — without demolition or unnecessary digging.
We specialize in detection. Once we locate the exact issue, we can work with your plumber or refer a trusted local repair contractor. Our detailed report will guide the repairs, saving time and reducing unnecessary work.
Absolutely. Every detection includes professional documentation — photos, moisture readings, leak source diagrams — formatted specifically for insurance adjusters to support your claim.
We serve all of New Jersey, including Monmouth County, Middlesex County, Somerset, Ocean, Union, and surrounding areas. If you’re not sure whether we service your area, call us at 732‑253‑4900 — we’re happy to help.
🤝 Partner With Us — No More Guesswork for Sewer Leaks
We help plumbers, contractors, and property managers across New Jersey quickly locate hidden sewer and drain leaks — no unnecessary demo, no delays.
Sewer Smell Leak Detection Services in NJ and Surrounding Areas
Sewer Smell Leak Detection Services in NJ and Surrounding Areas
Sewer Odor Leak Detection — Proudly Serving All of New Jersey
Our expert smoke testing and leak detection services are available throughout Central and South Jersey, including:
- Ocean County: Brick, Manchester, Toms River, Point Pleasant, Lakewood, Jackson
- Mercer County: Trenton, Princeton, Hamilton, East Windsor, Hightstown
- Monmouth County: Colts Neck, Red Bank, Matawan, Howell, Manalapan, Freehold
- Middlesex County: Sayreville, Old Bridge, East Brunswick, Monroe Twp, North Brunswick
Don’t see your exact town? We likely cover it! Just call or schedule a smoke test today.
Serving local homeowners, plumbers, and property managers across NJ.
New Jersey Leak Detection Reviews – Trusted Statewide
I had a hidden water main leak in my home and didn’t even know it until my water bill skyrocketed. Carl from first class leak detection came out the same day, found the leak quickly, and explained everything clearly. Super professional and saved me from major damage. Highly recommend!
August 7, 2025
We had a major water leak from our attic HVAC unit that damaged our hallway and bedroom below. It was overwhelming, but first class leak detection came through for us. They found the source quickly, cleaned everything up, and set up drying equipment right away. They were so compassionate and professional—especially Selda, who made sure we had all the documentation we needed for insurance. It felt like they truly cared about getting our home back to normal. While this experience overall was stressful, working with them made it a lot easier on us
July 17, 2025
Had a slab leak in my Freehold home that had me sweating—until these guys showed up. No upselling, no drama, just a technician named Carl who hooked up some gear, found the leak fast, and explained it to me like a normal human.
He didn’t treat my house like a demolition zone, either. Clean work, fair price, and zero follow-up hassles. If your floor’s turning into a pool or your water bill’s suspicious, stop overthinking it and call them.
July 5, 2025
I had a hidden water main leak in my home and didn’t even know it until my water bill skyrocketed. Carl from first class leak detection came out the same day, found the leak quickly, and explained everything clearly. Super professional and saved me from major damage. Highly recommend!
We had a major water leak from our attic HVAC unit that damaged our hallway and bedroom below. It was overwhelming, but first class leak detection came through for us. They found the source quickly, cleaned everything up, and set up drying equipment right away. They were so compassionate and professional—especially Selda, who made sure we had all the documentation we needed for insurance. It felt like they truly cared about getting our home back to normal. While this experience overall was stressful, working with them made it a lot easier on us
Had a slab leak in my Freehold home that had me sweating—until these guys showed up. No upselling, no drama, just a technician named Carl who hooked up some gear, found the leak fast, and explained it to me like a normal human. He didn’t treat my house like a demolition zone, either. Clean work, fair price, and zero follow-up hassles. If your floor’s turning into a pool or your water bill’s suspicious, stop overthinking it and call them.
🛠️ Other Leak Detection Services Across New Jersey
In addition to sewer odor and smoke testing, we locate hidden water leaks throughout New Jersey homes and commercial properties — fast, non-invasive, and accurate.
| 🛁 Bathtub Leak Detection | 🧱 Ceiling & Attic Leaks |
| 🚰 Cold Water Pipe Leaks | 🏠 Slab & Foundation Leaks |
| 🌳 Yard & Irrigation Leaks | 🏡 Roof Flashing Leak Detection |
| 🧯 Sprinkler Line Leak Detection | 🚿 Behind-Tile Shower Leaks |
| 💧 Radiant Floor Heating Leaks | 🪟 Window Flashing & Sill Leaks |
These leaks are often hidden behind walls, under floors, or inside concrete — and left untreated, they cause serious damage. We detect and document them before they become a disaster.
📞 Smell Sewer Gas? Don’t Wait — Get Expert Odor Leak Detection in NJ
Strange sulfur smells, methane odors, or foul gases in your home are signs of a serious hidden leak. Get fast, accurate sewer odor leak detection in New Jersey today — before it causes health issues or structural damage.
Call Now: 732-253-4900 
Or book online now — emergency & same-day appointments available across New Jersey.
🎥 See How We Detect Sewer Odors Without Tearing Into Your Home
Sewer gas smell in your home? Watch how we use smoke testing, tracer gas, and acoustic technology to detect hidden odor leaks inside walls, vent stacks, and drain lines — without demolition. Serving all of New Jersey with non-invasive sewer odor detection and inspection.
🛠️ Other Leak Detection Services We Provide Across New Jersey
Whether you’re dealing with foundation leaks, radiant heating issues, or irrigation system failures — our licensed NJ technicians are trained to locate hidden leaks quickly and with zero damage. Serving all of Central, North, and South Jersey.
In addition to sewer and drain leak detection, we offer specialized leak detection services across New Jersey, including:
- Concrete Slab Leak Detection in New Jersey
- Basement and Crawl Space Leak Detection — NJ
- Sewer & Drain Pipe Leak Detection — Central and North Jersey
- Pool & Spa Water Leak Detection — Somerset, Ocean, and Middlesex County
- Leak Detection for Landlords & Property Managers — NJ
- Plumbing Leak Detection Central Jersey
- Cold & Hot Water Pipe Leak Detection — NJ Homes & Buildings
- Irrigation & Sprinkler Leak Detection — Ocean, Mercer, Monmouth Counties
- Underground Utility Line Locating Services — NJ Statewide
- Insurance Leak Inspection Reports — New Jersey Claims
Central Jersey Service Area
Monmouth County Aberdeen Middlesex County Avenel Somerset County Basking Ridge Bear Tavern Ocean County Barnegat |
North Jersey Service Area
Bergen County Allendale Essex County Academy Hudson County Arlington Hunterdon County Annandale Morris County Boonton Passaic County Allwood Sussex County Andover Union County Baltusrol Warren County Allamuchy |
South Jersey Service Area
Atlantic County Folsom Burlington County Beverly Camden County Albion Cape May County Anglesea Cumberland County Bivalve Gloucester County Almonesson Salem County Alloway |
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Helpful Information for New Jersey Homeowners
Explore trusted local resources and get the facts about indoor sewer odors and leak issues in your area.
We proudly provide sewer odor leak detection services across New Jersey.
Official New Jersey Government Portal
NJ Department of Environmental Protection (DEP)
NJ Indoor Environmental Health & Sewer Gas Resources- NJ Plumbing & Building Code Guidance
Serving homeowners, landlords, and property managers across
Monmouth, Ocean, Middlesex, Union, Somerset, Bergen, Hudson, Camden, and Mercer Counties.
Stop Hidden Leaks Before They Cause Thousands in Damage
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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