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Find Radon gas testers in Bryn Mawr

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

Serving Bryn Mawr, 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 Bryn Mawr, 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 BOR of Montgomery County
BOR of Montgomery County
5.0(
1
)

Serving Bryn Mawr, PA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

At Best Option Restoration of Montgomery County, we specialize in comprehensive disaster restoration services. Our team is dedicated to safeguarding homes and businesses from the damaging effects of mold, water, and storms. Here’s what sets us apart:\n\nMold Remediation: Our certified experts assess and isolate mold contamination, ensuring thorough removal and preventing further spore spread. We identify the root cause, devise effective solutions, and prioritize your safety.\nWater Removal and Storm Damage Restoration: When water wreaks havoc due to storms or other incidents, we’re here to help. Our 24/7 emergency response team swiftly tackles water extraction, drying, and structural repairs.\n\nComprehensive Services: Beyond mold and water remediation, we handle storm damage repairs, basement flood cleanup\nChoose Best Option Restoration of Montgomery County for reliable, efficient, and compassionate restoration services. We’re committed to restoring peace of mind and protecting your property.

9 neighbors recently requested a quote
Avatar for Real Estate Inspections
Real Estate Inspections
4.9(
49
)

Serving Bryn Mawr, PA and surrounding areas

In business since 2002

Free estimates

Warranties offered

"I can't recommend REI highly enough. I called and Frank got my inspection scheduled ASAP and well within my time frame. Pete did a very thorough inspection of the home, checking every system and detail, and answering every question I had. He then provided me with a detailed report within 48 hours, well organized, and included estimate ranges for repairs. If I purchase the property, Pete's report will become a dog-eared reference for years to come. The cost was reasonable for having three inspections (house, termite, radon) of a large, old home. Thank you Pete, Frank, and REI!"
Recommended by97%of homeowners
Avatar for Anvil Radon Services
Anvil Radon Services
5.0(
15
)

Serving Bryn Mawr, 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
Avatar for Landmark Inspections LLC
Landmark Inspections LLC
5.0(
97
)

Serving Bryn Mawr, PA and surrounding areas

In business since 2007

Free estimates

Warranties offered

"Scott from Landmark Inspections performed a home inspection of the home my husband and I are purchasing. We are first time home buyers and this is our first home inspection. We were very impressed with Scott from beginning to end. Before the inspection, he was responsive and communcative, answering every one of our phone calls and emails. The inspection was thorough and Scott and his trainee inspector (also Scott) took the time to answer our questions and explain everything they were doing/finding. The inspection did not feel rushed or like Scott was trying to get through it to move on to the next. The report he sent us (48 hours after the inspection, great turn around time) was very throrough, contained useful information about our future home, and clearly laid out a heirarchy for recommended repairs. We also got a termite inspection, sewer scope inspection (which was also performed incredibly professionally by Melvin from Knox & Knox Solutions), and raydon test. In total, we paid a lot of money for these services, but it was money very well spent. We would not hesitate to recommend Scott, Landmark, and the other service professionals with whom he contracts."
Recommended by100%of homeowners
STRONG FOUNDATIONS HOME INSPECTIONS
5.0(
48
)

Serving Bryn Mawr, PA and surrounding areas

In business since 2002

Free estimates

Warranties offered

"Showed up early and came prepared. He was very thorough with his inspection and explained to me everything he was doing in detail so I could understand as he went though every nook and cranny of the house. His report was detailed and finished by the next morning. He was very polite and professional. Would never use anyone else. Espically since I just had to schedule a date with him and he took care of the termite and radon inspection also."
Recommended by100%of homeowners
Radon Technology & Environmental
5.0(
3
)

Serving Bryn Mawr, PA and surrounding areas

In business since 1989

Free estimates

Warranties offered

"Excellent Company. Responsive, professional and reasonably priced. They installed a Radon system in our 6,000 (plus) square foot home, bring the radon levels down from 55 Ci/L to 2.1Ci/L. The fan is very quiet and we were extraordinarily pleased with every aspect of their work. I highly recommend this company to everyone dealing with radon issues in their home."
Recommended by100%of homeowners
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FAQs for radon gas testing projects in Bryn Mawr, 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 Bryn Mawr, PA homeowners’ guide to radon gas testings

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