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Find Radon gas testers in Middletown

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

Serving Middletown, DE and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"If you are looking for an Inspector that represents you and not the realtor, Bill is your guy. Very impressed with his knowledge and customer service."
Response time7 hrs
36 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for A Comprehensive Home Inspection Service, LLC
A Comprehensive Home Inspection Service, LLC
4.9(
38
)

Serving Middletown, 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 Anvil Radon Services
Anvil Radon Services
5.0(
15
)

Serving Middletown, 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 Real Estate Inspections
Real Estate Inspections
4.9(
49
)

Serving Middletown, DE and surrounding areas

In business since 2002

Free estimates

Warranties offered

"Gerry MacDonald is an extremely knowledgeable and thorough home inspector. We received a very thorough inspection report on time in the timeframe promised. I would highly recommend Gerry and Real Estate Inspections."
Recommended by97%of homeowners
Avatar for Landmark Inspections LLC
Landmark Inspections LLC
5.0(
97
)

Serving Middletown, DE 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
Avatar for Environmental Testing & Research Laboratories, Inc
Environmental Testing & Research Laboratories, Inc
4.8(
347
)

Serving Middletown, 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 Middletown, DE and surrounding areas

In business since 1993

Free estimates

Warranties offered

"I am working with a real estate agent who recommended this company. The inspector, Bob, was very knowledgeable. I was quite impressed with the level of detail in his 29-page report. The report was given to me before he left, and I also received 2 discs with the information so I could share one with my real estate agent. Bob's comments and the photos were extremely helpful to the service people who subsequently came to work on the plumbing and electrical issues. <br />"
Recommended by100%of homeowners
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FAQs for radon gas testing projects in Middletown, 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 Middletown, DE homeowners’ guide to radon gas testings

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