Top-rated radon gas testers.

Get matched with top radon gas testers in Silver Spring, MD

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Radon gas testers in Silver Spring

Avatar for Maryland Home Inspection Services
Maryland Home Inspection Services
4.7(
36
)
Radon Gas - Testing

Serving Silver Spring, MD and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"They were prompt in responding, to my inquiry, detailed in explaining the process, and accomodating in doing the radon test based on my schedule. When I had questions on the test results - Jim responded with a few hours to my satisfaction. I am thoroughly impressed and satisfied with the service I received from MHIS."
1 neighbors recently requested a quote
Recommended by97%of homeowners
Fidelity Home Inspections of Maryland
4.8(
59
)
Radon Gas - Testing

Serving Silver Spring, MD and surrounding areas

Approved

In business since 1990

Free estimates

Customers say: Quick response

"I contacted Fidelity Home Inspections of Maryland to inspect my roof. Mr. Alderson arrived on time. He was very professional. Answered all of the questions I had prior to the inspection and gave me a verbal critique after the inspection. As he promised I received a detailed written report via email within 24 hours."
Certified Fireplace & Chimney Inspector
Certified Experienced Contractor
Certified Deck Inspector
Certified Home Energy Inspector
Certified Moisture Intrusion Inspector

+4

Response time1 day
Recommended by98%of homeowners
County Large Home Inspections
4.5(
58
)
Radon Gas - Testing

Serving Silver Spring, MD and surrounding areas

Approved

In business since 1999

Free estimates

Customers say: Quick response

"Ted Riddick did an excellent job of performing a mold test in our basement, at the buyers request. I was very leary at first, because we recently cleaned the carpets and were concerned and/or confused that mold could be in our basement. We certainly would have known if we had mold in our basement or water coming causing a mold situation. Needless to say no mold was found, and my worries were alleviated. Mr. Riddick is a seasoned inspector, with a deep knowledge all areas of home inspections. He was professional, kind, did a great job."
Response time10 mins
12 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Nooks & Crannies Property Inspection, LLC
Nooks & Crannies Property Inspection, LLC
4.9(
5
)
Radon Gas - Testing

Serving Silver Spring, MD and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Ryan was right on time both for the dropoff and pickup for doing a Radon test of my basement. He's a great communicator and is very personable! He was able to give me a fair assessment of the test results this time, how they related to the results I had gotten at closing of my home, giving me all the info necessary to feel comfortable on my plan of action. I would highly recommend him!"
Residential Radon Inspection
Response time3 hrs
Recommended by100%of homeowners
Avatar for D & H Demolition, LLC
D & H Demolition, LLC
5.0(
11
)
Radon Gas - Testing

Serving Silver Spring, MD and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Work team was polite, on time every day and highly professional. They explained the process in detail and kept us informed during each phase. I highly recommend D&H."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+9

Response time8 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for Atlantic Radon
Atlantic Radon
5.0(
63
)
Radon Gas - Testing

Serving Silver Spring, MD and surrounding areas

In business since 2017

Free estimates

"Atlantic Radon installed my new radon system and retested. Extremely hardworking and friendly team, fairly priced and honest. They brought my radon reading from 4.26 to 0.2 with the system they installed."
High Performance Radon Mitigation System
High Performance Radon Mitigation System
High Performance Radon Mitigation System
Installation of exhaust
Response time8 hrs
Response rate88%
Recommended by100%of homeowners
Showing 1-10 of 45
FAQs for radon gas testing projects in Silver Spring, MD

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 Silver Spring, MD homeowners’ guide to radon gas testings

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