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Find Radon gas testers in Nassau

Avatar for NU-Life Resources
NU-Life Resources
5.0(
109
)

Serving Nassau, NY and surrounding areas

Angi Approved

In business since 2007

Free estimates

Emergency services offered

"Jeff and his team have done many different projects for my clients and myself over the years. They are responsive , reliable and do exceptional work that even includes a warranty. Jeff is very knowledgeable with any concerns of mold or adequate ventilation for any home. I highly suggest you give him a call and you will be very satisfied. 5 STAR service from start to finish. Thanks Jeff and Team!"
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+6

Response time6 hrs
1 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for John Fox Inspections LLC
John Fox Inspections LLC
5.0(
9
)

Serving Nassau, NY and surrounding areas

Angi Approved

In business since 2025

Free estimates

Emergency services offered

"I couldn’t be more impressed with this company. From start to finish, the level of professionalism, communication, and thoroughness was truly exceptional. John arrived on time, fully prepared, and immediately demonstrated an expert-level understanding of every system in the home. His attention to detail was remarkable—he didn’t rush, he didn’t cut corners, and he explained every finding in a clear, approachable way that made the entire process feel stress-free. One of the biggest standouts was the range of services offered. Having sewer camera inspections, chimney camera inspections, and a mold assessment available in one appointment saved me so much time and money. John used modern equipment, including a drone for the roof inspection, and provided high-resolution photos, videos, and an incredibly organized report. What really makes John special is the pride John takes in his work. It’s obvious he genuinely cares about protecting his clients and helping them make informed decisions."
Mold
Mold
Thermal Imaging
Roof Inspection
Support Spalling

+2

Response time10 mins
Response rate100%
3 neighbors recently requested a quote
Earth Safe, LLC
4.2(
5
)

Serving Nassau, NY and surrounding areas

Angi Approved

In business since 2009

Free estimates

Warranties offered

"They were reasonably priced but I'd recommend skipping and saving yourself the heartache. I was having issues with the radon mitigation system they installed. After a few days of calling and leaving messages I had no response. Then we finally figured out when they installed the system it only received power when the light switch was on...instead of wiring it to run all the time. Still no response back from them and I am paying to fix the issue myself. Do not go with them."
EARTHSAFE ENVIRONMENTAL
Radon System Explained
Our Radon systems are second to none!
Inside Passive System
Inside Passive System

+6

Response time1 day
14 neighbors recently requested a quote
Recommended by40%of homeowners
Avatar for Spec-Pro Home Inspections
Spec-Pro Home Inspections
5.0(
105
)

Serving Nassau, NY and surrounding areas

In business since 2004

Free estimates

Emergency services offered

My name is Ian Robertson and I am a second generation home inspector. We have been inspecting homes for happy clients for decades. We take our trade seriously, as such, we offer a full range of home inspection services. Not only am I licensed by NYS, but I am a Board Certified Master Inspector, which is considered the highest honor in the industry and I am one of only a few hundred Master Inspectors in the entire country. In addition to this I am NACHI certified, IAC2 Certified, licensed by the EPA and I am also a NYS Home Inspector Instructor teaching other inspectors the trade.My inspections includes the roof, siding, windows, doors, foundation, garages, basement, electrical, heating, plumbing, attic, kitchen, baths, interiors and much more. All of our inspection reports are delivered the same day as your inspection with pictures and descriptions of your inspection in electronic format. We encourage you to be on the inspection with me if at all possible, because you are the real reason we are there. I love what we do here, and I know that you will too!

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Signs of termite infestation
Recommended by97%of homeowners
Avatar for CleanBright Surface Restoration
CleanBright Surface Restoration
5.0(
52
)

Serving Nassau, NY and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"Matt and his crew of Jacob and Christian went far above anything I expected. I called Matt on Saturday afternoon because my sump pump broke and basement had water everywhere. Within 5 minutes of submitting request for a quote he called. Within 30 minutes he was here assessing. Within an hour he had dryers and dehumidifiers set up. He called to check in on Sunday and was here Monday morning. Tuesday morning Jacob and Christian arrived and emptied everything that was damaged by water (and more). They filled a giant dump truck. They were so polite and careful. Right down to the sweeping! I felt like I was dealing with service the way it was years ago. I could not have asked for anything more."
Full gut down to the studs. All structural HEPA vacuumed, disinfected, and encapsulated.
Before kitchen remodel
Barn before painting
Water Damage Restoration in Scotia, NY
Bathroom Remodel in Glenville, NY

+106

Recommended by100%of homeowners
Avatar for HouseAbout Home Inspections, LLC
HouseAbout Home Inspections, LLC
4.9(
36
)

Serving Nassau, NY and surrounding areas

In business since 2008

"Dave was on-site early and ready to go. He very thorough and explained what he was looking for and it’s importance. He generated detailed reports for the properties the next day. I’d highly recommend Dave to anyone needing a home inspection."
Radon Test Canisters Guilderland Inspection
Termite (WDI) Inspection, Watervliet
Water Quality/Flow Testing, Nassau
Electrical Inspections
Furnace & Boiler Inspections

+2

Recommended by97%of homeowners
Avatar for Highland Air Inc
Highland Air Inc
5.0(
23
)

Serving Nassau, NY and surrounding areas

In business since 1993

Free estimates

Credit card accepted

"Austin did a professional job, knows his business, and was a pleasure to talk to and learn from. He also charges a very reasonable price and provides warranty and guarantee if any follow-up needed. He also had to suffer through high 90F humid weather for the outside work without a bit of complaining!"
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+5

Recommended by95%of homeowners
Avatar for Blue Jay Inspections LLC
Blue Jay Inspections LLC
5.0(
16
)

Serving Nassau, NY and surrounding areas

In business since 2013

Free estimates

"Jay was great! We are in the middle of the homebuying process and contacted him for a sewer line scope. He came prepared and walked us through what he was seeing. Even though it wasn't great news (obstruction, ended up being a collapsed line), we're glad he found it now rather than after we had closed on the home. I recommend that everyone get the sewer line inspected before buying a home. It definitely worth it for us!"
Recommended by100%of homeowners
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FAQs for radon gas testing projects in Nassau, NY

Radon is the second leading cause of lung cancer in the U.S. The gas seeps through cracks in foundations and collects in basements and other low areas. Once you breathe it in, radioactive particles lodge in lung tissue and do long-term damage. Because you can’t see or smell radon, the EPA recommends testing your home every two years—and after major renovations—to keep your family safe.

Yes—every home should be tested. The EPA advises doing it at least every two years and any time you remodel, buy, or sell. On average, one in 15 houses nationwide sits above the recommended limit, and the only way to know where yours stands is a formal test. The equipment simply measures gas levels and won’t change your indoor environment, so the process is completely harmless.

Certified radon professionals—often home inspectors or dedicated radon mitigation contractors—handle testing. These radon testing professionals follow EPA protocols and use calibrated instruments to check levels throughout your house. Hiring a certified radon specialist means results you can trust for real estate deals, insurance requirements, and, most importantly, your family’s health.

Inspectors specialize in measuring radon gas levels, while licensed mitigation contractors design and install the systems that remove it. If your test comes back high, your inspector can point you to a qualified mitigation pro who will size and install the right fan, piping, or other equipment to bring levels down.

No—standard home air purifiers don’t touch radon. They’re built to trap dust and pollen, not radioactive gas. If testing shows high levels, you’ll need a dedicated mitigation system that vents the gas from beneath your home to the outdoors. Relying on a room purifier alone won’t keep your indoor air safe.

Opening a few windows in your home might dilute radon for a short time, but the gas seeps back in as soon as they’re closed. For a lasting fix, you’ll need a professional mitigation system—often a sub-slab depressurization fan—that pulls radon from beneath the foundation and safely vents it outside.

The Nassau, NY homeowners’ guide to radon gas testings

From average costs to expert advice, get all the answers you need to get your job done.