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Find Radon gas testers in Lancaster

Avatar for The Radon Bros
The Radon Bros
5.0(
5
)

Serving Lancaster, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Warranties offered

"Excellent, very satisfactory. Radon Brothers' rep came, saw the problem, and replaced the leaking radon exhaust PVC pipe in my basement floor. All in record time. Am very satisfied and will continue using Angi contractors."
Installations
Installations
Installations
Installations
Installations

+8

Response time1 day
15 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for SIS Mold & Home Inspections
SIS Mold & Home Inspections
5.0(
2
)

Serving Lancaster, PA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"I have worked with SIS on numerous occasions as I completely trust them with my testing needs (mold & radon). They are responsive and knowledgeable, having extensive training and experience. Bob and Mary Ann are professional and courteous while providing a competitive price for their services. I highly recommend SIS for mold and radon testing!"
Toxic Mold
Mold under rug at bathroom
Subfloor and joist
Basement Closet
Bedroom Closet

+3

Response time4 hrs
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Enviroquest - Home Inspections and Radon Service
Enviroquest - Home Inspections and Radon Service
4.8(
104
)

Serving Lancaster, PA and surrounding areas

In business since 1991

Free estimates

Warranties offered

"I recommend Enviroquest to my clients all the time and they are always happy. Enviroquest is diligent, professional, and just good at what the do. And they install Radon Mitigation systems themselves! (which most inspections companies don't do) Can't go wrong with Enviroquest for all your home inspection needs!"
Recommended by97%of homeowners
Avatar for Real Estate Inspections
Real Estate Inspections
4.9(
49
)

Serving Lancaster, PA and surrounding areas

In business since 2002

Free estimates

Warranties offered

"Karen and David did a great job coordinating and performing the inspection. They were available all hours and on weekends. Great service!!! Great service!!! Great service!!! Thanks Steve and Alysia"
Recommended by97%of homeowners
Avatar for Anvil Radon Services
Anvil Radon Services
5.0(
15
)

Serving Lancaster, PA and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"Extremely fast, professional & the best price out there. I’ve been having radon mitigation systems installed for 15 years and this was the best company I ever used"
Recommended by100%of homeowners
RJH Radon Mitigation Inc
4.8(
17
)

Serving Lancaster, PA and surrounding areas

In business since 1998

Free estimates

Warranties offered

"This was one of 2 companies we called for an estimate to have a radon mitigation system installed in our home. Had to leave a message which was not immediately returned so we made a second call. This time our call was returned in a timely fashion. We set up an appointment time for an estimate and then went ahead with this company. Both appointment times were kept at the agreed time. The work was done as proposed, a full explanation of the system was given and the workman left his work area as he found it. We were encouraged to call the company with any problems are questions in the future. A test kit with left with us to make sure the system is working. We are happy with the service provided by this company. <br /> <br /> <br />"
Recommended by94%of homeowners
Showing 1-10 of 35
FAQs for radon gas testing projects in Lancaster, PA

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 Lancaster, PA homeowners’ guide to radon gas testings

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