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    Verified radon detection and reduction services reviews

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

Avatar for ACCURATE SAFETY SOLUTIONS - ACCURATE RADON
ACCURATE SAFETY SOLUTIONS - ACCURATE RADON
4.9(
148
)
Radon Gas - Abatement

Serving Saint Charles, IL and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"A small testing device was set up in our basement and was left in place three days. The device was then picked up and we received a phone call a day later informing us of the radon level detected. This was followed up by a professionally prepared report mailed to us detailing the results and how to interpret them."
Response time9 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for DuPage Radon Contractors
DuPage Radon Contractors
4.4(
41
)
Radon Gas - Abatement

Serving Saint Charles, IL and surrounding areas

Approved

In business since 1991

Free estimates

Credit card accepted

"They contacted us immediately and were here the next day to test our home for radon. They were very thorough and inspired confidence. They also gave us a report of what they found. Also resonable prices!"
Standard Fan Housing
System External View
Suction Pipe into Basement Floor
Low Profile Fan Comparison
Standard Fan Housing

+39

Recommended by100%of homeowners
Avatar for Clean Air Radon Systems, Inc.
Clean Air Radon Systems, Inc.
4.8(
27
)
Radon Gas - Abatement

Serving Saint Charles, 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
10 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Bull's Eye Home Inspection
Bull's Eye Home Inspection
4.8(
28
)
Radon Gas - Testing

Serving Saint Charles, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Small jobs welcome

"Matthew did a great job inspecting the mobile home, and pointed out each step of the inspection as I followed him around. I would definitely hire him again if I needed another inspection."
Knee wall in Chicago Bungalow
Hydronic floor heating
Small flat roof on gable shingled roof
Overview of townhome in Glenview
Townhome Attic

+4

Response time3 hrs
3 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for PROFESSIONAL RADON SYSTEMS INC
PROFESSIONAL RADON SYSTEMS INC
4.8(
92
)
Radon Gas - AbatementRadon Gas - Testing

Serving Saint Charles, 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 Clue Radon Services
Clue Radon Services
5.0(
117
)
Radon Gas - Abatement

Serving Saint Charles, IL and surrounding areas

In business since 2015

Emergency services offered

"I rarely post reviews. Sidad came out a day after I called about our 9.5 radon level to inspect and tell us about the installation route of his mitigation system in our basement. He returned the next morning, installed the system & our 3rd party test report came back at 0.3 which she said was super low. I can not say enough about Clue Radon and his excellent job! And on top of that he is honest and very kind! BTW I first called 3 well known Radon Companies in Lake and Dupage County and they all said I'd be looking at a 2-3 week wait because they are that busy. Call Clue Radon:)"
logo
Radon monitor
Radon monitor
Response time5 hrs
Response rate89%
Recommended by99%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

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.

Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home’s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

Yes, many systems include warranties for performance. Confirm terms with your installer.

The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

The Saint Charles, 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.