Top 10 Best Radon detection and reduction specialists in Decatur, IL

Q: How often should radon levels be tested to ensure safety?

• <div><p>Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.</p></div>

Q: How long can you go without a radon fan?

• <div><p>Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.</p></div>

Q: What types of radon mitigation systems are available?

• <div><p>Options include sub-slab depressurization, crawlspace ventilation, and sealing cracks. Choose based on home construction and radon levels.</p></div>

Q: What if radon is still high after mitigation?

• <div><p>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.</p></div>

Q: Do radon mitigation systems come with warranties?

• <div><p>Yes, many systems include warranties for performance. Confirm terms with your installer.</p></div>

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

*The Angi rating for Radon Detection And Reduction companies in Decatur, 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 Decatur, 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 15, 2026

Reviewed in June 2026
Irvin plumbing did an excellent job replacing two outside spigots and finished the job for about 1/2 the price that was quoted by three other contractors. Kyle works with time and materials rather than per job pricing which I feel saved me a lot of money. I recommend him highly and expect that...
Irvin Plumbing LLC
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Reviewed in May 2026
Aaron fixed a section of my wood privacy fence, was able to use a portion of my existing fence and put in new poles. It was done in the timeframe promised and he was great to work with.
God Inspired Everist Designs
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Reviewed in February 2025
Highly experienced and very professional. Was so happy to find someone mobile for my welding needs, was very convenient and on top of that affordable!
Borealis Mobile Welding
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Reviewed in September 2024
Eldon And his crew of Professionals did great work in a timely manner, and i highly recommend them, Bob Cox
midwest custom fencing
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Reviewed in May 2024
They did exactly what they said they would and my wife and I were very pleased. We love the work and the professionalism..we definitely recommend this company to anyone.
Mad City Windows & Baths
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Reviewed in May 2023
I was so impressed at the excellence and professionalism of this company in doing the projects I needed for my remodel. Iâ m learning that surprises are to be expected when doing so, and for a homeowner, what would be daunting for me, was dealt with easily and knowledgeably for Ryan and Kyle....
Copper Creek Electric Inc
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Reviewed in November 2022
Removed several stumps. Can't even tell where they were except for seeing the dirt! All debris hauled away. Worked steady, non-smoker, superior service. Reliable and dependable. Clean and neat.
Martz Stump Grinding, LLC
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Reviewed in October 2022
Ron did a very good job, I would highly recommend him and his wife, very friendly and I had my home inspected the very next day.
Ron Smith Custom Real Estate Inspections
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Reviewed in September 2022
John's (the owner of Pristine Inspections) verbal and written information prior to the inspection were thorough. John arrived on time the day of the inspection, gave an overview of the process and asked if I have a list of questions or concerns for him to address. The complete inspection and...
Pristine Inspections & Testing, Inc.
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Reviewed in August 2022
The job was completed quickly and efficiently. I was very happy with the the completed project. The service man cleaned up the area and removed all of the material. Very happy with the tub to shower conversion project
Bath Planet of Springfield
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Find Radon detection and reduction specialists in Decatur

Midwest Radon Testing

5.0(

)

Serving Decatur, IL and surrounding areas

In business since 2009

Free estimates

Credit card accepted

"They are very professional, prompt, great job working and cooperative with other venders."

Response time1 day

Recommended by100%of homeowners

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Home Inspections by Dana - Home Facebook

New to Angi

Serving Decatur, IL and surrounding areas

In business since 2016

Free estimates

Credit card accepted

25 years experience \n- family owned \n- Veteran \n-

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Radon Detection and Reduction questions, answered by experts

Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

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

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 Decatur, 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

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Mar 18, 2026Mar 18, 2026
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Apr 5, 2026Apr 5, 2026
Who Installs Radon Mitigation Systems?
Radon is a gas that you can't see or smell and is harmful to your health. If your home has radon, you need to know who installs radon mitigation systems.
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May 2, 2026May 2, 2026
What Is Radon and How Does It Get In Your Home?
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Apr 10, 2026Apr 10, 2026
What Is Radon Testing?
What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.