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Best radon detection and reduction specialists near Frankfort, IL

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Top-Rated Radon detection and reduction specialists in Frankfort - Updated Nov 2026

Avatar for American Radon Systems
American Radon Systems
4.9(
126
)
Radon Gas - Abatement

Serving Frankfort, IL and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"Bill was very professional, friendly, and patient with our questions from start to end. He explained the installation in detail along with providing pictures of what to expect. Within 24 hours of installation, Airthings Radon monitor reported a significant radon level drop. After one week, the Radon average has gone from 8.6 to 0.6 pCi/L. Thank you, Bill and Jose."
Radon System
Plainfield Radon System
Plainfield Radon System Basement
Response time9 hrs
3 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for Stuedemann Radon Resolutions
Stuedemann Radon Resolutions
4.7(
273
)
Radon Gas - Abatement

Serving Frankfort, IL and surrounding areas

Approved

In business since 1988

Free estimates

Customers say: Quality work

"We were very happy with the crew who worked in our home. Very professional. Prepared the site so we could not tell they had even been in our home. Testing following the job indicated that the radon gas was leaving our home. Our radon level went from 12 to 0."
New sump pump lid installation
Caulking around the sump pump cover
Caulking around the exterior Radon fan
Radon fan on exterior of home
Radon fan on exterior of home

+11

Recommended by99%of homeowners
Avatar for Clean Air Radon Systems, Inc.
Clean Air Radon Systems, Inc.
4.8(
27
)
Radon Gas - Abatement

Serving Frankfort, IL and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"Schan did a great job, very professional. He came out to see what the job was before he gave me a quote. I have a huge crawl space which took some time but he stuck with it to finish it in one day. Now I can breathe easier knowing it's taking care of right. I highly recommend Clean Air Radon Systems."
pipe in garage
2) Main suction point
3) Our secondary suction point
4) Fan in attic
5) vented through roof

+18

Response time11 hrs
12 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for PROFESSIONAL RADON SYSTEMS INC
PROFESSIONAL RADON SYSTEMS INC
4.8(
92
)
Radon Gas - AbatementRadon Gas - Testing

Serving Frankfort, IL and surrounding areas

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
Additional Photos
Additional Photos
Additional Photos
2 Suction Points

+4

Response time2 days
Recommended by95%of homeowners
Avatar for Assure Home Inspection
Assure Home Inspection
4.8(
97
)
Radon Gas - Abatement

Serving Frankfort, IL and surrounding areas

In business since 2005

Free estimates

Warranties offered

"The true test will be the radon measurement . Everything looks very nice , very professionally done . I was just under impression from other companies I spoke to that something had to be done with sump pump."
New Lenox Condo Radon Mitigation
New Lenox Radon Mitigation System
Townhome Radon Mitigation Plainfield, IL
Response time5 hrs
Response rate92%
Recommended by98%of homeowners
Radaquest Radon Inspectors
5.0(
4
)
Radon Gas - Testing

Serving Frankfort, IL and surrounding areas

In business since 2008

Free estimates

Credit card accepted

"Very easy to get an appointment on short notice when I had limited time to get a radon test done in the process of purchasing a home. Their price was also slightly lower than an estimate I'd received from another company, and the technician was more thorough about explaining the process than the other company I considered."
Response time5 hrs
Response rate87%
Recommended by100%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

Mitigation can take several days depending on home setup, equipment accessibility, and achieving effective diffusion system sealed efficiency.

Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

Mitigation reduces radon levels, protecting your health and complying with safety standards.

Options include sub-slab depressurization, crawlspace ventilation, and sealing cracks. Choose based on home construction and radon levels.

Radon is the number one non-smoking cause of lung cancer in the United States, but it can cause some other concerning side effects in the meantime. If you have a raspy voice, chest pains, trouble breathing, difficulty swallowing, or any of the above, don’t hesitate to perform radon testing and install a mitigation system as soon as possible.

The Frankfort, IL homeowners’ guide to radon detection and reduction services

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