Inspector conducting a controlled tracer-smoke and pressure test at a building drain and plumbing trap

Gas detection and testing

Sewer Gas Testing in Long Island

Noticing a foul, rotten-egg smell in your home or office? Our professional sewer gas testing in Long Island pinpoints hidden leaks in your plumbing system before they become health hazards or costly repairs. Get fast, accurate results from certified technicians you can trust.

IndependentNo remediation conflictLaboratory-backedAccredited analysisDecision-readyClear written findings

Service overview

Check Leaks in Your Plumbing System with Sewer Gas Testing in Long Island

Call us for testing for sewer gas in home or office before the problem gets worse.

Your plumbing system isn’t foolproof. Sometimes it can leak, and when that happens, dangerous gases can build up inside your property. That’s why you might be experiencing a rotten egg smell, constant headaches, and dizziness. A sewer gas test is, therefore, not optional because it tells you where the leak is.

Quest Mold and Asbestos Testing provides sewer gas detection and testing services in Long Island, NY. Our NYS-certified professionals use advanced techniques like smoke testing, gas sensors, and pressure testing to find leaks in both residential and commercial properties.

We also test hard-to-reach areas, ensuring nothing is missed during testing. We’ll provide you with a full report, telling you where the leak is and what you can do to get it fixed.

Credentials behind the work

Certified inspectors. Recognized standards. Independent findings.
  • MICRO Certified Mold InspectorMICRO
  • IICRC CertifiedIICRC
  • CMI and CMRC certifiedCMI / CMRC
  • EPA Lead-Safe Certified FirmEPA Lead-Safe
  • New York State Department of LaborNYS Department of Labor

How the work is performed

Common Methods Professionals Use For Testing Sewer Gas Leaks

Step 1

Smoke Test

In a smoke test for sewer gas, a non-toxic smoke is released into your plumbing system to find where gas is leaking. Wherever the smoke comes out, that's where the leak is.

Step 2

Gas Sensors

In this method, specialized tools are used to test your indoor air for harmful sewer gases. These tools are designed to sense even the lowest levels of gas.

Step 3

Tracer Gas Testing

A harmless gas is released into the plumbing system, and sensors are used to see where it escapes. This method is suitable for finding leaks inside walls, floors, and underground pipes.

Step 4

Sewer Camera Inspection

A small camera is placed inside your pipes to check cracks, blockages, and damage. This helps identify the issue without any digging.

Step 5

Water Testing

It's the simplest way to pinpoint hidden leaks, where water is used to test drain traps and plumbing connections for any gaps or weak spots where gas might escape.

A foul smell won’t let you breathe comfortably? Call us for a reliable sewer gas smell test in Long Island, New York.

What the service covers

Fast and Affordable Sewer Gas Testing Services for All of Long Island

Do you need a sewer gas air quality test in Garden City or in Stony Brook? Our services are available throughout Long Island, New York, including:

  • Great Neck
  • Roslyn
  • Huntington
  • Cold Spring Harbor
  • Port Washington
  • Malverne

We understand the urgency of the sewer gas leak problem. Therefore, we arrive fast and test your whole plumbing system reliably, giving you an accurate report.

Service overview

How to Tell If You Need a Sewer Gas Test

Does any of these ring a bell? Contact us for a sewer smoke test in Long Island.

You’re smelling a bad odor, and dealing with headaches that won’t leave you alone. Before you blame anything else, you should know that these are symptoms of a gas leak from your plumbing system. Other signs include:

  • You or other family members are feeling dizzy or nauseous
  • Everyone inside your property is experiencing frequent allergy symptoms
  • Your toilet, sinks, or bathtub make bubbling sounds when running water
  • Your property has older pipes that have not been checked or replaced in years
  • Your sinks or tubs aren’t draining properly

Results and next steps

What Happens If Sewer Gas Leaks Go Unaddressed?

Don’t want to face these consequences? Let us run a fixed gases testing and plumbing smoke test to keep your property safe and compliant.

  • Sewer gas builds up inside your property and pollutes your indoor air
  • It contains hydrogen sulfide, which can damage your lungs over time
  • People inside start experiencing health issues like headaches, dizziness, and nausea
  • The longer the leak goes unaddressed, the more it damages your walls, floors, and other building materials
  • Your property value drops due to the unfixed sewer gas problem

Service overview

Why You Should Not Test Sewer Gas Yourself

The air inside feels unpleasant and irritating. You suspect a sewer gas leak, so you want to grab a gas sensor and start scanning your plumbing system on your own. But it’s not as simple and safe as you think. Sewer gas contains hydrogen sulfide and methane, and even a short exposure to these can cause dizziness and loss of consciousness.

DIY tools are designed to check surface-level air only, meaning that you risk missing leaks hidden inside walls, floors, or the plumbing system. You might get a false negative result when the issue is still there.

That’s why this job is best left to professionals who bring experience, expertise, and professional-grade sewer gas testing kits that can identify hidden leaks.

Quest team member holding a bulk air sampling hose and pump
Field noteService overview

Service overview

How Much Does Sewer Gas Testing Cost in Long Island?

Do you need a free estimate? Contact us, and we’ll provide a transparent quote based on these factors.

You want your property tested for a sewer gas leak. Therefore, you Google “ sewer gas test near me ” and contact the first option you come across. And they give you an excessive quote without checking anything. In reality, the cost of a sewer gas test depends on different factors, such as:

  • How big is your property
  • How many areas need to be tested
  • Which testing methods will be used
  • Whether the leak is obvious or hidden deep inside
  • Whether you need follow-up testing

Why choose Quest

Why Trust Quest Mold and Asbestos Testing For Sewer Gas Testing?

Don’t let a sewer gas leak issue affect you, your family, and your property. Reach out for professional sewer gas testing in Long Island, NY.

  • We’re an NYS-certified company
  • We have a local, trained, and background-checked team of professionals
  • We use advanced tools and methods for sewer gas testing
  • We find the issue and recommend necessary repairs
  • We’re available 24/7 and respond quickly
  • We maintain transparent and affordable pricing

Client perspective

What our clients say about us

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★★★★★

111 Google reviews

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“Meir was there right away to do my mold testing and he was honest and very helpful. I got my results within two days and he went over them with me on the phone.”

Local field coverage

Serving New York City and Long Island.

Send Quest the property address when scheduling and the team will confirm availability and the right testing scope.

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A clear next step

Start with the property concern.

Tell Quest what you are seeing, smelling, renovating or trying to verify. The team will confirm the appropriate inspection or testing approach before the appointment.

Schedule an inspectionCall 917-277-7580

Talk to an inspector

Start with clear evidence.

Tell us what you are seeing, smelling, renovating or concerned about. Quest will help you identify the appropriate inspection or test.

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