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Find Radon gas testers in Williamstown

Avatar for S.W.A.T. Environmental
S.W.A.T. Environmental
4.8(
60
)

Serving Williamstown, MA and surrounding areas

In business since 1988

Free estimates

Emergency services offered

"Be careful. I called to have a radon mitigation system installed and the sales rep on the phone took down the information and scheduled the appointment. I was upfront about an interior drain being installed. When the technician arrived, he said he'd be happy to install the system, but that it would be worthless because of the interior drainage system. I then received a $200 invoice for the site visit. Frustrating scenario to have a sales rep schedule the appointment, knowing full-well that I had an interior drain, and then the technician tell me there's no point to install a mitigation system, but then charge me for the inconvenience of it all."
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Low profile box fan
GP501 with colored riser

+9

Recommended by93%of homeowners
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Avatar for Healthy Homes
Healthy Homes
4.8(
45
)

Serving Williamstown, MA and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"After Healthy Homes did such a great job on my rental apartment, decided to see if they could help me with the cigarette smell in my car. Was sold a small handheld fog machine and some Un-Odor product. Fogged the entire interior of my vehicle, sprayed the product on all surfaces. After washing the windows with Windex and wiping everything down with a dry towel, the car was free from odor and looked and smelled clean and fresh! Fantastic Products!!!"
Recommended by91%of homeowners
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Becker Home Inspection Svc
4.9(
9
)

Serving Williamstown, MA and surrounding areas

In business since 1997

Free estimates

Comprehensive Buyer Home and Building Inspection Services of Residential and Small Commercial buildings Pre listing inspections that will help you uncover potential problems that could compromise a sale. Report is completed on site and discussed in detail and handed to client. Payment is due at that time. Questions are welcomed by phone anytime after your inspection. Maintenance tips and suggestions offered.\nVery thorough inspections average 3-4 hours, buyer attendance recommended\nEstablished in 1997 All Home Inspections performed by Brad Becker MA Lic# 204, Bonded and Insured. No subcontractors used. Service area, Central, Northern and Western Mass, Southern Vt.

Recommended by100%of homeowners
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Advanced Building Inspectors
4.7(
6
)

Serving Williamstown, MA and surrounding areas

In business since 2004

Free estimates

Real estate is usually the largest investment you will ever make, yet many people do so without knowing the condition of the property they are purchasing. That is why selecting a professional and experienced property inspector is such a valuable investment! \n\nAt Advanced Building Inspectors (ABI) we provide a visual non-destructive examination of the systems and structure of a home or commercial building, from the roof to the foundation. These inspections are conducted by specially trained and completely objective licensed inspectors with over 20 years of real estate experience. \n\nBased upon ABI’s experience, we are sensitive to the emotions present during any real estate transaction and know how the timely delivery of the report is as important as the content. Thus we provide you a computer generated report within 48 business hours.

Ronald Riggs - Managing Partner
Herbert Riggs - Partner
Theo Brown - Partner
Recommended by83%of homeowners
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FAQs for radon gas testing projects in Williamstown, 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 Williamstown, MA homeowners’ guide to radon gas testings

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

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