Top-rated radon gas testers.

Get matched with top radon gas testers in Alexandria, VA

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 Alexandria

Avatar for SERVPRO of Springfield/Mt Vernon
SERVPRO of Springfield/Mt Vernon
4.6(
8
)

Serving Alexandria, VA and surrounding areas

Approved

In business since 2009

Emergency services offered

Warranties offered

"A crew showed up within the hour and immediately assessed and estimated, then went to work after I got the insurance OK.
It took several hours to tear out what was necessary, not only due to the extent, but because they were thorough and ensured that what they removed, both anticipated and unanticipated, was indeed necessary. I appreciated that. After they set the machinery to dry the infrastructure, I didn't have to clean up after them. Only had to hose the sidewalk from all the wet flakes of drywall that was removed. The crew did not slack off, nor were they surly. At a time when I'm trying not to stress out badly, their professionalism was welcomed.
A few days later when they removed the machinery at their estimated time, Jerry and Billie left only after they ensured the machines were no longer required.
My insurance sent another firm to perform the restoration, but had they sent the Burke ServPro for that I wouldn't have worried at all. [The new restoration company appears fine so far, too, but as it is ongoing, we'll see.]
Thanks, guys, for making a stressful event less stressful - that is almost as important as the quality work.
"
Drywall repair - after
Kitchen remodeling
Water damage project aft er being dried out
Drywall repair - before
Kitchen remodeling

+37

Response time1 day
2 neighbors recently requested a quote
Recommended by75%of homeowners
Dragon Ridge Home Inspections
5.0(
8
)

Serving Alexandria, VA and surrounding areas

In business since 2003

Free estimates

Credit card accepted

"JT of Dragon Ridge performed a Home Inspection and Radon Testing of a SFH in Fairfax, VA. JT arrived before I did, and was already examining the exterior of the property. While we waiting for my realtor to arrive, he grabbed a ladder and did a complete inspection of the roof (not all inspectors do this). Once we got inside, he explained the processes and we began. I shadowed him throughout the whole processes, and it was a wonderful experience. He was very thorough and knowledgeable, and was always willing to provide complete and educational answers about both the good and the bad he found. We got the report later that evening, and it was well written, with plenty of pictures of any deficiencies. He also performed a Radon test, and reported the results a few days later. I spoke to him over the phone about the findings, and he was able to discuss in detail the methodology he used, and the meanings of the testing numbers. Overall, I would highly recommend JT and Dragon Ridge."
Additional Photos
Additional Photos
Additional Photos
Recommended by100%of homeowners
Avatar for CSI Home and Commercial Services
CSI Home and Commercial Services
4.6(
80
)

Serving Alexandria, VA and surrounding areas

In business since 1995

Free estimates

Credit card accepted

"You certainly get what you pay for! While CSI wasn't the cheapest on our list of home inspection and radon testing quotes, the cost was more than reasonable for the level of service that we received. Ron, our home inspector, was fantastic! He arrived early, and I don't think he could have been more thorough than he was! He was very friendly and personable, and was more than willing to answer our questions during the inspection. He went through the entire home with a fine toothed comb! He pointed out defects that he found, and explained things in detail. He also highlighted the positive things he found. Used a drone to inspect the roof and chimney, and thermal imaging to check for hidden moisture. I feel like we have an excellent idea of the condition of the property we are buying, which has done a lot in making us feel more comfortable! The report we receiced within 24 hours was professional and clearly written with appropriate photos attached. Will certainly recommend to others, and will use them for any future home inspection needs we have!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+5

Recommended by97%of homeowners
Association of Environmental Professionals
5.0(
1
)

Serving Alexandria, VA and surrounding areas

In business since 1991

Free estimates

Offers commercial services

"I am in real estate development and sales and use Douglas for all of my radon testing, mold testing, etc. He is a retired geologist professor from George Mason University, and is very intelligent. He does an excellent job, and I recommend him to others all the time!"
Response time1 day
Response rate100%
Recommended by100%of homeowners
Avatar for FSI Inspections
FSI Inspections
4.9(
9
)

Serving Alexandria, VA and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"Marc is extremely knowledgeable, and professional. He is always punctual and his customer service is outstanding. I depend on him for my clients as I trust and value his expertise."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+5

Recommended by88%of homeowners
Avatar for Floodbusters Inc
Floodbusters Inc
4.4(
38
)

Serving Alexandria, VA and surrounding areas

In business since 1988

Free estimates

Emergency services offered

"Having had considerable basement issues with water I utilized the services of FloodBuster's to assist in waterproofing and correcting my problem. With a major iron ore issue we we're finally able to install a system that allowed for cleanout and maintenance and prevent the continual flooding and water damage that I had experienced. While this was a challenging process and required a few corrections Floodbuster's worked with us along the way providing quality work at times below cost corrections to ensure that my waterproofing challenges were complete. I would recommend them especially in challenging situations."
Finished Base Board System
Additional Photos
Additional Photos
Additional Photos
Recommended by81%of homeowners
Showing 1-10 of 22
FAQs for radon gas testing projects in Alexandria, VA

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 Alexandria, VA homeowners’ guide to radon gas testings

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