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Find Radon gas testers in Mendon

Radon Systems LLC
5.0(
219
)

Serving Mendon, MA and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"Fast response to inquiry. Flat rate fee and was able to schedule the work within 7-10 days. The installer was on time, finished on time and was very professional. Site was left clean and tidy. Retesting after 5 days had reduced the radon to below 2. The install worked great and as they warranted it would."
1 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for Indoor Environmental
Indoor Environmental
5.0(
46
)

Serving Mendon, MA and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"very quick process much less involved than I imagined. Mold testing done then a few days later, solution applied everywhere downstairs. after process completed, company came back and did another test for mold."
3 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for A&R Environmental LLC
A&R Environmental LLC
5.0(
14
)

Serving Mendon, MA and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"We discovered that we had a radon reading of 11.4 ppm with an acceptable level of only 4.0 ppm. I joined Angie's List to find a qualified company in my area to learn what could be done. I chose A and R Environmental with a A rating based on several positive reviews. I called Aand R and spoke to a very knowledgeable young lady about where radon comes from, it's cancer effect on health issues and how to get rid of it. She explained in detail the mitigation process, the system itself and the cost of installation. That was on a Tuesday. An appointment was made for the following Thursday at 1:00 pm. The crew showed up on time and we decided on a location in the house to put the equipment. It took only three and a half hours start to finish. The system was installed, the house was cleaned of any debris and I was given a thorough explanation of the system and what to monitor. I can't say enough for Angie's List and the great people at A and R Environmental for their professionalism."
Recommended by100%of homeowners
Avatar for S.W.A.T. Environmental
S.W.A.T. Environmental
4.8(
60
)

Serving Mendon, MA and surrounding areas

In business since 1988

Free estimates

Emergency services offered

"Gary, the install tech, was great. He arrived on time, was professional, and went above and beyond to ensure everything was done right and I was satisfied. He installed a new radon pipe, and ensured the clamps were not directly against the house and the top of the pipe was properly away from the gutter. After the pipe was installed I noticed a rattling noise coming from the motor...Gary checked it and cleaned out debris multiple times until the noise was gone. You could tell Gary takes pride in his work and wanted to do the job right the first time (I feel like you don't see this very often). A job well done."
Recommended by93%of homeowners
Avatar for Morrison Home Inspections LLC
Morrison Home Inspections LLC
5.0(
52
)

Serving Mendon, MA and surrounding areas

In business since 1983

Free estimates

Warranties offered

"He was very professional from the get go and responded to email and phone calls promptly. On the day of the inspection he was there before the time he had specified and had already started with his outside inspection. He seemed very thorough in his job. Since the home was relatively new construction (2007) there were not many issues sighted. It gave us the peace of mind to go through with the purchase and now about a year after that everything is going strong in the house. <br /> I would definitely recommend him to anyone. <br />"
Recommended by98%of homeowners
EAGLE ENVIRONMENTAL INC
5.0(
62
)

Serving Mendon, MA and surrounding areas

In business since 1992

Free estimates

Warranties offered

"It is really a nice experience to work with John and Kevin. Our house has a funny foundation. There is a block in the middle and half of the house has radon and the other half does not have much. At first time, Kevin came on time, worked very professionally and got the first pipe and big fan installed. But unfortunately, this pipe is in the not much radon side and the radon score did not drop down too much. We were very worried and called the EAGLE ENVIRONMENTAL again. They arranged the second appointment and Kevin did more tests and installed the second pipe on the side of the foundation WITH NO EXTRA COSTS. And then magic happened, our radon number dropped to almost 0 now. :) Thanks you Kevin and EAGLE ENVIRONMENTAL again for the fantastic work!"
Recommended by98%of homeowners
Avatar for Massachusetts Home Inspections
Massachusetts Home Inspections
5.0(
60
)

Serving Mendon, MA and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"David was excellent. He was responsive and helpful. He was extremely thorough during the inspection and the information he provided allowed us to negotiate with the seller. We had our report later the same day. The radon test results (an extra cost) took a few additional days to get from the lab. When I got to the house for the inspection (early) I found that David was already there and inspecting the exterior. I cannot recommend David highly enough!"
Recommended by98%of homeowners
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FAQs for radon gas testing projects in Mendon, MA

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 Mendon, MA homeowners’ guide to radon gas testings

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