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Find Radon gas testers in Gilmanton

Avatar for True North Home Inspections, LLC
True North Home Inspections, LLC
4.9(
24
)

Serving Gilmanton, NH and surrounding areas

Angi Approved

In business since 2020

Free estimates

Emergency services offered

"John was very thorough in his work and took the time to point out to my husband not only what would need or even just WANT repair but also how to do the work himself so that we could do it ourselves. We will be recommending True North to anyone we know who needs an inspection done from here on out."
Response time3 hrs
Response rate88%
4 neighbors recently requested a quote
Avatar for Seacoast Inspections LLC
Seacoast Inspections LLC
4.9(
71
)

Serving Gilmanton, NH and surrounding areas

In business since 2003

Free estimates

Emergency services offered

Licensed Home Inspector #698 MA, #107 NH \nASHI Certified Inspector #247162, \nCertified Level II Building Science Thermographer #31162, \nEDR Certified, \nCertified WDI Registry Inspector #90113. \n \nNo Fee guarantee!

Recommended by95%of homeowners
Avatar for Coletta Radon Systems
Coletta Radon Systems
5.0(
18
)

Serving Gilmanton, NH and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"Rob was a pleasure to work with. We had to have a more unusually sized radon mitigation fan replaced. Rob handled sizing and installation and even informed us about the manufacturer warranty for the model. Would definitely use him again. "
Recommended by94%of homeowners
Avatar for Advanced Radon Mitigation & Water Treatment
Advanced Radon Mitigation & Water Treatment
5.0(
27
)

Serving Gilmanton, NH and surrounding areas

In business since 1997

Free estimates

Warranties offered

"Although my relationship with ARM started a bit rocky, in the end I was very happy with the service provided. After a ARM technician replaced a fan, the noise level in the surrounding rooms increased to a point where I wondered if I could sell the house. I got the impression from the technician who installed the fan and was told by another company's technician there probably wasn't anything I could do. But, Mike G, from ARM, was able to lower the noise to a tolerable level by reducing the vibration from the attached pipe by making small adjustments including re-positioning the fan, removing old clamps and adding foam. He patiently answered all my questions and explained what he was doing throughout the diagnostic. Although the noise problem was resolved, the radon level was still 10.8 pCi/L so ARM returned (with the original technician and Keith to add a second suction point. . I was very happy with their work. The pipes were placed in a way that is an unobtrusive as possible, are securely fastened and as I learned, have the right pitch. Before the installation, Keith explained what they did to determine where they thought the suction point should be, and after must have been a long day for them, made me feel it was important that all my questions were answered. My radon level is now .6 pCi/L! My only complaint is that it takes a long time to get appointments and for two of the visits they were a few hours late.. The cost of service is for the 3 visits which were 11/9/18, 12/26/18, and 1/30/19 and includes the cost of the fan."
Recommended by100%of homeowners
Avatar for Epping Well & Pump Co Inc
Epping Well & Pump Co Inc
4.8(
10
)

Serving Gilmanton, NH and surrounding areas

In business since 1986

Free estimates

Emergency services offered

"They did a very good job, they were very professional. I have interview 3 other providers and they were the most trusted provider, knowledgeable and experienced. He seems to be ethical for me, and so I went to hire them, and they did a very good job."
Recommended by100%of homeowners
Avatar for Basement Systems of New Hampshire Inc
Basement Systems of New Hampshire Inc
4.4(
45
)

Serving Gilmanton, NH and surrounding areas

In business since 2002

Free estimates

Emergency services offered

All Things Basementy! Basement Systems Of NH Is Today One Of The Largest Basement Waterproofing, Basement Foundation Repair And Basement Finishing Contractors In New Hampshire And Massachusetts. We Are Family Owned And Committed To 100% Customer Satisfaction. We Pride Ourselves On Our Wide Variety Of Systems - Each Designed To Repair And Upgrade Your Basement, Crawl Space, Or Foundation. Call Us Today To Schedule a Free Estimate!

Recommended by91%of homeowners
Avatar for McBride's Water Advantage, LLC
McBride's Water Advantage, LLC
5.0(
2
)

Serving Gilmanton, NH and surrounding areas

In business since 2004

Free estimates

Warranties offered

We are a growing company serving the residence State of New Hampshire. Payment options include cash, checks, Mastercard, Visa and Discover. \nLike us on Facebook and receive a free in-home well pump and water system inspection.

Recommended by100%of homeowners
Avatar for Red Dog Home Inspections, LLC
Red Dog Home Inspections, LLC
5.0(
2
)

Serving Gilmanton, NH and surrounding areas

In business since 2001

Free estimates

Warranties offered

Fully licensed and certified Home Inspections are offered in MA and New Hampshire for home buyers, sellers and mortgage companies, as well as component inspections for insurance companies. A Red Dog inspection includes, in part, electic, heating and air conditioning, structure, roof, foundation, attic, basement, crawlspace, deeck, shed, garage, yard walls, steps, driveway, walkways, drains, gutters, chimneys, vents, handrails, mositure intrusion, etc.

Recommended by100%of homeowners
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FAQs for radon gas testing projects in Gilmanton, NH

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 Gilmanton, NH homeowners’ guide to radon gas testings

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