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Find Radon gas testers in Willowbrook

Avatar for PROFESSIONAL RADON SYSTEMS INC
PROFESSIONAL RADON SYSTEMS INC
5.0(
81
)

Serving Willowbrook, IL and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

"Professional Radon System did an excellent job. They put the customer at ease. Work was done neatly installer explained everything thoroughly. I will use Professional Radon system again, and I will wii refer to family, friends and neighbors."
Additional Photos
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2 Suction Points

+4

Response time2 days
1 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for RadoVent Illinois LLC
RadoVent Illinois LLC
5.0(
68
)

Serving Willowbrook, IL and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"The guys came out within a day or two of my initial call and spent quite a bit of time explaining what they would do. They were patient and seemed very knowledgeable. Their solution involved routing the exhaust through the garage and garage attic and out the roof, which would be much more attractive and less subject to weather extremes than routing the exhaust pipe along the exterior of the house. After I gave them the go ahead, they were able to schedule the work within 1-2 weeks. They arrived on time and were very efficient, finishing a little earlier than I had expected. In addition to the radon remediation they patched a foundation crack for considerably less money than companies that specialize in foundation repair."
Recommended by97%of homeowners
Avatar for BRT Home Inspections & Radon Testing
BRT Home Inspections & Radon Testing
4.9(
74
)

Serving Willowbrook, IL and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"Working with BRT on our home inspection and radon test was incredibly easy and very competitively priced. Dave was very easy to get a hold of and was able to schedule us quickly. He is very knowledgeable about homes and construction in general. He not only showed me certain issues with the house but also explained which items I could fix myself and where to buy the parts. He differentiated the items that couldn't be "DIY-ed" and offered to provide (didn't push) contacts for these items. The best value with BRT is the fact that they can couple a radon test with their home inspection. Most home inspectors sub-contract their radon tests with different companies. This not only adds time to your inspection (cutting into your inspection review period) but also costs a lot more money (I quoted 5 different home inspectors and BRT was the most competitive). To top it all off, Dave is a personable guy who is very easy to get along with and has plenty of experiences to share. I would highly recommend Dave and BRT to anyone getting a home inspection (especially if you're getting a radon test too)."
Recommended by98%of homeowners
Avatar for MJG Home Inspections P.C.
MJG Home Inspections P.C.
5.0(
93
)

Serving Willowbrook, IL and surrounding areas

In business since 2013

Free estimates

Warranties offered

"Inspection was done professionally, and he did a thorough job, I was provided a detailed report afterwards. I wasn't going to do a Radon test, but glad I did - the reading was a 16. After mitigation, level came down to 1.5"
Recommended by100%of homeowners
Avatar for VSI Radon Reduction Corp.
VSI Radon Reduction Corp.
4.9(
82
)

Serving Willowbrook, IL and surrounding areas

In business since 1987

Free estimates

Warranties offered

"VSI is the real deal. After testing my house & finding levels too high, I started searching for mitigation (Angie, HomeAdvisor, Yelp, etc.). VSI was on every list, their website is extremely informative, and the founder (Mr. Volsted) even created courses @ U of Chicago about radon – some reputation! Then my personal trainer showed me a picture of her radon mitigation system and there was the VSI sticker. So I called, Kevin answered quickly, and after several questions he gave me a quote over the phone & sent emailed it within the hour. A week later Guy and his crew came and did an exceptional job installing the system. Very professional work – respectful of property, wore booties inside, vacuum attachment on concrete drills so minimal dust, and cleaned up everywhere. Great color match on outside piping. Guy even did a smoke test w/ pilot holes to demonstrate the suction beneath the basement floor. Guy gave detailed explanations & answered all my questions. I have a continuous monitoring system and even within a few hours radon levels have already dropped significantly. Very satisfied, highly recommended!"
Recommended by93%of homeowners
Radon Testers Inc
5.0(
20
)

Serving Willowbrook, IL and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"Ron was very responsive and was able to get the equipment delivered and installed with short notice. He engaged us in some conversation and clearly loves what he does. His associate returned 48 hours later to retrieve the machines and Ron called us the following day for payment and to provide the results. Our home tested in the 4-6 picocurie range which is above the action level of 4. Ron emailed detail results which showed the measurement by hour and by location, information about radon, and information about remediation (including referrals to local providers). He also included information regarding the legal aspects of radon as it relates to testers and remediators. Definitely recommended. This guy lives to do radon testing!"
Recommended by100%of homeowners
Avatar for Inspect, Inc.
Inspect, Inc.
5.0(
32
)

Serving Willowbrook, IL and surrounding areas

In business since 1983

Free estimates

Warranties offered

"We needed inspection on a single-family ranch home built in 1970 at around 1600 sq ft. Mike is very thorough and does a great job of explaining things as he goes. He looks at every aspect, from top to bottom, and isn't afraid to get a little dirty. His turnaround time is very quick. We received the inspection report early the following morning, even though our inspection occurred late afternoon the previous day. He takes his time to address any questions. We also got a Radon inspection done. This wasn't done by Mike, but he essentially hired another certified company out and relayed the cost to us."
Recommended by100%of homeowners
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FAQs for radon gas testing projects in Willowbrook, IL

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 Willowbrook, IL homeowners’ guide to radon gas testings

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