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Find Radon gas testers in Clayton

Avatar for In and Out Home Inspections, LLC
In and Out Home Inspections, LLC
4.9(
86
)

Serving Clayton, DE and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"Very professional showed up on time, went through every detail with me sent me a very well detailed report that day. Very happy with the whole experience."
Response time7 hrs
32 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Lawson Home Services, LLC
Lawson Home Services, LLC
4.8(
55
)

Serving Clayton, DE and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"David Lawson was very professional & provided wonderful service with Radon Migation System. His workers were pleasant & efficient ."
Metal Door Crawlspace Entrace
Turtl Crawlspace Entrance
Attic Air Leaks
Attic Air Sealing
Garage Loft Ready for Sprayfoam

+137

Response time9 hrs
118 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for A Comprehensive Home Inspection Service, LLC
A Comprehensive Home Inspection Service, LLC
4.9(
38
)

Serving Clayton, DE and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"George was very thorough and took the time to show us even the most minor repair needs. We did a home inspection and water quality test and I feel better about the house now than I did when we put the initial contract in for it."
Logo
Response time8 hrs
20 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Real Estate Inspections
Real Estate Inspections
4.9(
49
)

Serving Clayton, DE 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 Clayton, DE and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"Complete w/o issue. Pleasant and friendly tech."
Recommended by100%of homeowners
Avatar for Environmental Testing & Research Laboratories, Inc
Environmental Testing & Research Laboratories, Inc
4.8(
347
)

Serving Clayton, DE and surrounding areas

In business since 1995

Free estimates

Warranties offered

"<p>it was superb! they easiest, hassle free Radon test in town, with extremely proficient people -- very knowledgeable and very people-friendly! they took their time to explain things on the phone to me before I committed. the test came back within 10 days or so -- via email. which is very convenient. it was very clear as it is, but I like talking through it and get advice. they were instantly available to discuss. they gave me future tips to keep on top of all things Radon related. </p> <p>I have to say that all this comes to be after 3 months of many back and forths with 3 other companies -- none of the other companies could be bothered to schedule a time, and those who did, never showed up.. many times over. I don't know why I was so patient with them and I wish had discovered Environmental Testing & Research Laboratories much sooner.</p> <p>Really highly recommend them!</p> <br />"
Recommended by93%of homeowners
Reliable Home Inspection Service
5.0(
38
)

Serving Clayton, DE and surrounding areas

In business since 1993

Free estimates

Warranties offered

"John is clearly experienced and by the end of the 3.5 hr inspection he was sweating bullets! I come to appreciate the job of a home inspector because it's so physically demanding! <br /> John produced a report that shows all the big (roof leak!) and small issues (carpet too high, prevents door from closing correctly), but what really shocked us and I will be eternally grateful for, is he got our attention on the EIFS exterior right off the beginning! We had no clue this synthetic stucco existed and that it could cause serious moisture issue for the home. He scared us and it's a very good thing. We walked away from a rather pricy home knowing that the $577.00 I spent saved me from potential serious financial mistake! <br /> In the end we ordered what John recommended, a moisture inspection, but the sellers were very uncomfortable with the invasive test and we walked away from the deal. I am heartbroken, but I am grateful and so glad I found a good inspector because h*** I would be p***** 4 months after moving in that my home had moisture problem! <br /> John we are still looking for homes, and potentially looking for a brand new construction but everything I read online said a good home inspection is still just as important on a new home as it is for a old home. So I will be calling =) <br />"
Recommended by100%of homeowners
Avatar for Kinetic Basement Solutions Inc
Kinetic Basement Solutions Inc
4.6(
25
)

Serving Clayton, DE and surrounding areas

In business since 2000

Free estimates

Warranties offered

"I had called Kinetic Basement Solutions because one of my two sump pump pits began filling with water. The pits had no pumps and very little water in them for years but that all changed recently. The team assessed the situation and installed two pumps, one in each pit, along with exterior drainage basins and I no longer worry about the water. They performed the installation about a week after I told them I wanted to move forward and they were nothing but professional. The installation inside was done well and there was no cleanup I had to do when they left! Outside, I had one minor aesthetic concern that was addressed immediately the following day. More companies should be as responsive as Kinetic. Nicole and the office staff are a pleasure to deal with."
Recommended by84%of homeowners
Avatar for '58 Foundations & Waterproofing
'58 Foundations & Waterproofing
4.3(
35
)

Serving Clayton, DE and surrounding areas

In business since 1958

Free estimates

Emergency services offered

"They started when they said they would and finished up in 3 days.  We had a very dry summer so I was not sure how well the French drain and sump worked until this fall when it rained heavily.  I would have had water in the basement in the past.  Also, we like the fact that the work is guaranteed for the life of the structure regardless of the owner.  <br />"
Recommended by80%of homeowners
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FAQs for radon gas testing projects in Clayton, DE

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 Clayton, DE homeowners’ guide to radon gas testings

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