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Best radon detection and reduction specialists near Stratham, NH

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Top-Rated Radon detection and reduction specialists in Stratham - Updated Nov 2026

Avatar for Safe Radon Solutions, LLC
Safe Radon Solutions, LLC
4.9(
32
)
Radon Gas - Abatement

Serving Stratham, NH and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Nick and Dori are a good team. I was promptly contacted by Dori and after a quick phone call, we were able to schedule an appointment for radon mitigation. Nick showed up and installed everything. It took 2 days, but that was only because the day of the initial install was very windy and rainy. Nick was very conscious of safe work and did not perform unsafe tasks. Once the install was complete, they provided me with a radon test that I submitted for validation of mitigation."
Response time1 day
Response rate86%
3 neighbors recently requested a quote
Avatar for US Water Consultants, Inc.
US Water Consultants, Inc.
4.6(
98
)
Radon Gas - Abatement

Serving Stratham, NH and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"Mark, the owner came over himself to estimate the job. He was extremely knowledgeable and was able to explain what and why they were going to do. He also was able to give comparisons of equipment used by other companies. The front office kept me updated on tests and appointments, timely. His crew was very professional and PUNCTUAL! They took the time to remove all signs and equipment of my old water system, which they didn't have to do. Due to hard-packed dirt under my basement floor, they had to return 3 times to bring my Radon Air within EPA standards. However, the quoted price didn't change, and each time the crew was as professional as their first visit. I highly recommend Mark and US Water Consultants for your Radon Air Mitigation and any water improvements and modifications."
Response time1 day
6 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Erickson Foundation Solutions
Erickson Foundation Solutions
4.1(
75
)
Radon Gas - AbatementRadon Gas - Testing

Serving Stratham, NH and surrounding areas

Approved

In business since 1979

Free estimates

Emergency services offered

"I hired Erickson Foundation for radon mitigation. Job went smoothly. They communicated well, were very professional, and reviewed all potential options for the job with me. The system installation was done on time, professionally done, and well cleaned-up. The equipment is high quality, with the 10-year warranty being a big plus."
Sinking Step Repair
Settling Home Addition
Settling Slab
EZ Posts for deck addition
Foundation Crack Repair

+60

Response time1 day
9 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Absolute Water System LLC
Absolute Water System LLC
4.7(
30
)
Radon Gas - AbatementRadon Gas - Testing

Serving Stratham, NH and surrounding areas

In business since 1981

Emergency services offered

Credit card accepted

"They were the first to give us a quote and were able to come out as soon as we needed them to. Installation was smooth, and they have been good at following up to make sure the system is working. Because our radon is still slightly high, they are doing another radon test and will follow up if it comes back high yet again. We would definitely recommend them to others!"
Additional Photos
Additional Photos
Additional Photos
Recommended by96%of homeowners
Avatar for Rhino Radon Services
Rhino Radon Services
4.2(
9
)
Radon Gas - AbatementRadon Gas - Testing

Serving Stratham, NH and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"He was on time, arrived at 9am as quoted and began to install the system. The system required two suction points and a sump pit cover. The sump pit originally had a pedestal pump in place and none of the other radon companies would change the pedestal pump to a submersible pump as required for the mitigation system to function properly. Rhino Radon not only changed the pump but installed a back flow check valve to ensure proper functioning of the system. All of the other companies said we would have to employ a plumber or a handy man to get this done. Had we gone that route the closing would not have happened. Rhino Radon gladly did all the work required and didn't even break for lunch!!! He was more concerned with getting us out of the vacant house seeing we are already down the cape. The system that involved a crawl space and being vented through the garage roof was completed immaculately and the test results came back at 0.5 pCil/L. This pleased the lender and buyer and exceeded our expectations. We highly recommend Rhino Radon Services.
"
Recommended by100%of homeowners
Avatar for Russell Inspection Services  Facebook
Russell Inspection Services Facebook
3.9(
17
)
Radon Gas - Testing

Serving Stratham, NH and surrounding areas

In business since 1985

Established in 1985, Peter C. Russell Installations, LLC continues to be a family owned and operated business in New Hampshire, Maine and Massachusetts. Peter C. Russell Installations, LLC prides itse

Vinyl siding and trim
 170 year old colonial
 2 Car garage
New construction home
 2 front windows before i

+8

Recommended by75%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

The average radon mitigation system uses about 876 kWh of electricity per year, although the exact amount of electricity used will vary depending on the size of the radon fan. Once the system is installed, the annual increase to your energy bill could range from $30 to $300 per year, again depending on the size of the fan.

While DIY testing is possible, abatement generally requires professional installation to ensure efficacy and meet safety standards.

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

The Stratham, NH homeowners’ guide to radon detection and reduction services

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