Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Cahokia, IL

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Cahokia, IL?

Select your specific project to find the pro for you.

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 June 18, 2026

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
Request Quote
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
Request Quote
Radon Detection and Reduction questions, answered by experts

The average radon mitigation system uses about 876 kWh of electricity per year, although the exact amount of electricity used will vary depending on the size of the radon fan. Once the system is installed, the annual increase to your energy bill could range from $30 to $300 per year, again depending on the size of the fan.

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.

Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.

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.

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

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.

See all articles