Top-rated radon detection and reduction specialists.

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

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: What steps should be taken if high radon levels are detected?

• <div><p>If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.</p></div>

Q: How often should you replace a radon fan?

• <div><p>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.</p></div>

Q: How does radon enter my home?

• <div><p>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.</p></div>

Q: Why is my radon mitigation system so loud?

• <div><p>Your radon mitigation system may be loud because it&rsquo;s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Machesney Park, IL

*The Angi rating for Radon Detection And Reduction companies in Machesney Park, 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 Machesney Park, 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 May 11, 2026

Reviewed in May 2026
Aurelius did an excellent job checking on my AC and furnace. He was professional, knowledgeable, and took the time to explain everything clearly. He arrived on time, worked efficiently, and made sure everything was running properly before leaving. You can tell he takes pride in his work and...
G & R Heating and Air, LLC
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Reviewed in April 2025
Had Teodoro Tree Service out twice now. The first time was for tree and stump removal of one tree, 3/17/25. Today, 4/14/25, the second time they removed two huge trees and stumps. Both times they provided outstanding service and care for my property, and my neighbors, too. I couldn't be more...
Teodoro Tree Service
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Reviewed in June 2024
they did the work quickly and left the area clean and picked up
Polex Services
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Reviewed in March 2024
Radman did a great job installing the radon mitigation system. Very clean and neat and reasonable price too.
Radman Radon Testing
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Reviewed in October 2023
Nick and Ron were very professional and nice to deal with, the arrived when scheduled and cleaned up when he was done. Our project didn't fit the Angi's checklist criteria but Nick/Ron said "no problem whatever you want " Ron installed wooden stairs and rails from our attached garage into the...
Professional Painting
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Reviewed in July 2023
Scott responded the next day after I requested referrals on Angi. He came out a few days later to look at the fascia repair, and then called later in the evening with an estimate and time he could do the work. Everything was completed within a week from the time I submitted a request until the...
Custom Roofers III
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Reviewed in April 2023
They did a great job removing a tree at my Mom’s. They also ground up the stump from the tree they removed and one that was already there. Both Mark and his son and kind professional workers. We have used Mark’s Tree Carr in the past too and have always been pleased. We also buy firewood from...
Mark's Tree Care
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Reviewed in January 2022
Dave Gardner set us up with an appointment in only two days for installation of a radon mitigation system. DaveÃ¢Â Â s son, Jordan, and his team were very professional, courteous, friendly, honest, and informative in going over their Ã¢Â Â game planÃ¢Â Â for our installation system. Our radon...
Gardner Environmental Services
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Reviewed in November 2021
They were quick and efficient. We had a lot of 25 foot branches hanging over the house and they were all removed without incident. We can actually see our roof now!
J&A Lawn & Landscape
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Reviewed in October 2021
What a great experience, never scene a stump removed. Randy Walters of Stumps Bee Gone LLC was prompt, polite, extremely friendly and knowledgeable. I would highly recommend and will use again if ever the need arises. Thank you so much!
Stumps Bee Gone
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Find Radon detection and reduction specialists in Machesney Park

Bull's Eye Home Inspection

4.8(

)

Radon Gas - Testing

Serving Machesney Park, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Small jobs welcome

"Easy communication, flexible and extremely detail! His rating is a true reflection of his work. Thank you!"

Response time3 hrs

5 neighbors recently requested a quote

Recommended by92%of homeowners

Request Quote

Gardner Environmental Services

4.8(

263

)

Radon Gas - Abatement

Serving Machesney Park, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1993

Free estimates

Emergency services offered

"Dave Gardner and crew outstanding. Extremely knowledgeable, identified and fixed my radon problem . Very honest and trustworthy"

+20

Response time5 hrs

4 neighbors recently requested a quote

Recommended by90%of homeowners

Radon Gas - Abatement

Serving Machesney Park, IL and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"David, at Gardner Environmental Services, professionally performed numerous air sample tests inside our home due to a minor smelling of mold in one spot.Fortunately, his lab resource came back with negative results on each location sample David tested. David was reassuring and pleasant to work with. I would recommend his company, to anyone."

+18

Response time7 hrs

Response rate100%

12 neighbors recently requested a quote

Radon Gas - Abatement

Serving Machesney Park, IL and surrounding areas

Approved

In business since 1957

Free estimates

Warranties offered

"well...as they said it would."

Response time1 day

Response rate100%

31 neighbors recently requested a quote

Radon Gas - Abatement

Serving Machesney Park, IL and surrounding areas

In business since 2020

Free estimates

Warranties offered

"RADMAN did an outstanding job installing a radon mitigation system in my home. His crew knows what they are doing and the results speak for themselves. Within hours after starting up the system my Radon level went from 20 to less than 1 Picocuurie per liter."

Response time1 day

Recommended by100%of homeowners

Request Quote

SWAT Environmental, Inc.

3.5(

)

Radon Gas - Abatement

Serving Machesney Park, IL and surrounding areas

In business since 1998

Free estimates

Credit card accepted

SWAT Environmental, Inc. is the nation's largest radon abatement engineer. Our experienced staff has corrected Radon problems for over 60,000 customers since 1988 with 100% success!

Recommended by100%of homeowners

Request Quote

Radon Detection and Reduction questions, answered by experts

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.

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

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.

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.

Your radon mitigation system may be loud because it’s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.

The Machesney Park, 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

Mitchell Grant
•
Aug 3, 2026Aug 3, 2026
How Much Does a Radon Mitigation System Cost? [2026 Data]
The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
Alison Kasch
•
Apr 6, 2026Apr 6, 2026
How Much Does Radon Remediation Cost? [2026 Data]
Get clear answers on how much radon remediation costs, including average prices, key cost factors, and tips to save money on your home’s radon mitigation.
Angi
•
Mar 18, 2026Mar 18, 2026
How Much Does Radon Testing Cost? [2026 Data]
Find out what impacts radon testing costs, including average prices for DIY kits and professional services, so you can protect your home and budget confidently.
Amy Freeman
•
Jul 9, 2026Jul 9, 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.
Jacqueline DeMarco
•
Jul 9, 2026Jul 9, 2026
What Is Radon and How Does It Get In Your Home?
What is radon gas? Find out what this radioactive gas is, why it is dangerous, how it gets in your home, and how to mitigate it.
Jacqueline DeMarco
•
Jul 9, 2026Jul 9, 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.

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

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

Radon Gas Testing

Radon Gas Abatement

Indoor Air Quality Testing

Verified Reviews for Radon Detection And Reduction pros in Machesney Park, IL

Find Radon detection and reduction specialists in Machesney Park

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

How Much Does a Radon Mitigation System Cost? [2026 Data]

How Much Does Radon Remediation Cost? [2026 Data]

How Much Does Radon Testing Cost? [2026 Data]

Who Installs Radon Mitigation Systems?

What Is Radon and How Does It Get In Your Home?

What Is Radon Testing?

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

Enter your zip and get matched with up to 5 pros

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

Radon Gas Testing

Radon Gas Abatement

Indoor Air Quality Testing

Verified Reviews for Radon Detection And Reduction pros in Machesney Park, IL

Find Radon detection and reduction specialists in Machesney Park

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

How Much Does a Radon Mitigation System Cost? [2026 Data]

How Much Does Radon Remediation Cost? [2026 Data]

How Much Does Radon Testing Cost? [2026 Data]

Who Installs Radon Mitigation Systems?

What Is Radon and How Does It Get In Your Home?

What Is Radon Testing?

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