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    Average homeowner rating
  • Verified reviews icon17
    Verified radon detection and reduction services reviews

Top-Rated Radon detection and reduction specialists in Buffalo Grove - Updated Nov 2026

Avatar for Radon Tec
Radon Tec
4.9(
49
)
Radon Gas - Testing

Serving Buffalo Grove, IL and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"Dawn was professional and extremely nice. She arrived at our home on time and returned 2 days later to read the test results. She immediately forwarded these results to us for our records. I highly recommend Radon Tec."
Corentium Pro
Response time3 hrs
Response rate91%
2 neighbors recently requested a quote
Avatar for Clean Air Radon Systems, Inc.
Clean Air Radon Systems, Inc.
4.8(
27
)
Radon Gas - Abatement

Serving Buffalo Grove, IL and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"The owner called and asked the right questions which gave me the confidence that he would be the right person for the job. He was able to come over on the same day we spoke. He was prompt with communication and solidified that he was the right person to do the job. When it was time to do the job: Arrived on time, did clean work - and finished in a timely fashion. After a 6 hours of testing, my device showed the levels went down tremendously."
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 Buffalo Grove, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Small jobs welcome

"Mat is the inspector realtors hate... tongue-in-cheek. He is extremely knowledgeable, has great attention to detail, and is very honest. If there is something wrong with the property, you better believe he's going to find it. He takes the time and does a thorough job. I highly recommend him!"
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 Gardner Services
Gardner Services
4.7(
17
)
Radon Gas - Abatement

Serving Buffalo Grove, IL and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"This is a high quality mold/fungi/fungus testing company, with excellent customer service and follow-up. The phones were picked up on the first call each time, and arranging for an appointment was very easy. They arrived on time, were efficient, informing, and friendly in their work, and brought commercial equipment to perform the test samples. The follow up phone call and email on the test results was good, and they provided a potential remediation plan for us to follow on the test results. The third party lab utilized by them had easy to understand numbers, graphs, and descriptions of what was tested. We will do business with Gardner Services again in the near future, and will recommend them to others."
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+18

Response time7 hrs
Response rate100%
8 neighbors recently requested a quote
Avatar for Signature Water and Fire Restoration
Signature Water and Fire Restoration
5.0(
1
)
Radon Gas - Testing

Serving Buffalo Grove, IL and surrounding areas

Approved

In business since 2013

Emergency services offered

Credit card accepted

Signature Water and Fire Restoration Company is an Illinois based company that offers a full range of property restoration services while combining the latest technologies and state-of-the-art restoration techniques. Our services cover water damage restoration, mold remediation, fire damage restoration and odor removal, cleaning services including carpet cleaning, repair and reinstallation.

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+7

Response time10 hrs
1 neighbors recently requested a quote
Avatar for Clue Radon Services
Clue Radon Services
5.0(
117
)
Radon Gas - Abatement

Serving Buffalo Grove, IL and surrounding areas

In business since 2015

Emergency services offered

"This business was highly recommended by my realtor. I hired this company to inspect the radon mitigation system prior to me buying a house. The owner, Sidad, was very responsive to my inquiries. The inspection price was reasonable, and he followed up promptly with the results on the inspection. I hired him to come out and fix the radon mitigation fan after purchasing my house. He was quick and efficient, and the price was reasonable. I highly recommend this business."
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Radon monitor
Radon monitor
Response time5 hrs
Response rate89%
Recommended by99%of homeowners
Showing 1-10 of 27
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.

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

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 natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

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 Buffalo Grove, 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.