Top-rated radon gas testers.

Get matched with top radon gas testers in Oak Brook, IL

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 Oak Brook

Avatar for Area Wide Waterproofing
Area Wide Waterproofing
5.00(
6
)

In business since 2015

Free estimates

"Fast, quick and clean."
Recommended by100%of homeowners
Request Quote
Avatar for Daniel's Remodeling
Daniel's Remodeling
New to Angi

In business since 1999

Free estimates

Emergency services offered

2-3 EMPLOYEES.COST IS DETERMINED BY THE JOB.

Request Quote
Avatar for Concrete Crawlspaces & Basement Waterproofing Corp
Concrete Crawlspaces & Basement Waterproofing Corp
4.75(
154
)

In business since 2007

Free estimates

"Steve Gavin, the owner came out and provided me with a great price that was inclusive of the entire scope of the project. During our meeting he took the time to explain the process that his company uses. Once the permits were issued the crew arrived the next morning at 7:00 a.m. as promised. The crew met the deadline for a 1:30 inspection from the Village of Deerfield. They not only met the deadline but they passed the inspection without any issues to be corrected. The crew worked until 7:00 p.m. completing the job. I would also note that they left my home spotless!"
Recommended by92%of homeowners
Request Quote
Trinity Inspection & Restoration Inc
New to Angi

In business since 2003

Free estimates

Additional DBA - Trinity Inspection & RSTRTN. See website for additional service areas.

Request Quote
The Big Boys
New to Angi

Free estimates

Warranties offered

Small group of Professional Tradesmen with decades of experience. Free estimates. One-half payment due after first day of work, remainder due upon completion (unless financed through The Big Boys). 2% Financing options are often available for larger jobs.

Request Quote
Avatar for Zero Mold
Zero Mold
4.83(
41
)

In business since 2005

Free estimates

Emergency services offered

"The work they did was very good. The customer service about the balance due after and initial deposit; awaiting Insurance payment, was harassment. It was unrelenting even after they received the check; they forgot to subtract my initial deposit and called and text me accusing me of owing them more. They added to the stress of a very challenging situation after a flood at my home. I would never t commend them for this reason, "
Recommended by95%of homeowners
Request Quote
Avatar for Welcome Home Property Inspections
Welcome Home Property Inspections
New to Angi

In business since 2002

Welcome Home Property Inspections provides certified residential and commercial property inspection services for Chicago and surrounding suburbs. The company provides buyers, sellers, and investors with expertly prepared reports allowing clients to make better informed decisions about their property. This veteran-owned company is led by Ron Krywanio, a ASHI certified, Illinois state licensed property inspector. Proudly serving Orland Park, Tinley Park, Mokena, Oak Forest, Frankfort, Orland Hills,Palos Park, Palos Heights, Palos Hills and other locations upon request.

Request Quote
Preferred Property Inspection Services Inc.
New to Angi

In business since 1996

Free estimates

Property Inspection and Consulting

Request Quote
...
Showing 1-10 of 517
FAQs for radon gas testing projects in Oak Brook, 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 Oak Brook, IL homeowners’ guide to radon gas testings

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

See all articles