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Verified Reviews for Radon Detection And Reduction pros in Cahokia, IL

*The Angi rating for Radon Detection And Reduction companies in Cahokia, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

*The HomeAdvisor rating for Radon Detection And Reduction companies in Cahokia, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

Last update on November 13, 2025

Find Radon detection and reduction specialists in Cahokia

Avatar for Scope Environmental
Scope Environmental
5.0(
15
)

Serving Cahokia, IL and surrounding areas

In business since 2023

Free estimates

Small jobs welcome

"TESTING FOR ASBESTOS I need to make sure people know about a man named Jeff Miller Owner of Scope Environmental. I wanted to have my basement checked for Asbestos. This man was absolutely the nicest person. Jeff is a professional, who explained things extremely well and in detail, offered positives suggestions, and extremely knowledgeable. Oh, and extremely honest and helpful. If you ever want to have your basement checked for Radon or Asbestos or Mold, please call this nice man who has a vast amount of experience and knowledge on these three issues. His phone number is 314-220-1810. His pricing is very reasonable and he is Certified in the State of Missouri which is a requirement by the State to do testing. He sure put my mind at peace."
Black mold inside closet
Mold growth in HVAC Closet
Asbestos Flooring
Floor sample collection
Asbestos Adhesive

+10

Response time4 hrs
Response rate96%
Recommended by73%of homeowners
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Avatar for Loving Mold Removal
Loving Mold Removal
4.6(
26
)

Serving Cahokia, IL and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"K&E was very responsive to my request through Angi and came the same day (a Saturday) to review the work. He gave a reasonable estimate and completed the work the following Monday. I really appreciated the quick turnaround. However, he did not provide the contractcertifications and company info prior to coming to do the work as he said. He was not responsive to my emails and text messages about the contract and work start due to bad weather. Clean up was pretty good, but I did find chipped paint debris when I expected to all of that vacuumed away. That's why I gave a 4 point rating rather than a 5. I will not need to hire again because the lead and asbestos have been abated and there is no need for further work."
Mold Testing and Remediation Project
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+43

Recommended by87%of homeowners
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Radon Detection and Reduction questions, answered by experts

The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

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

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

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.

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 Cahokia, 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.

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