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Best radon detection and reduction specialists near Cottage Grove, MN

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

Avatar for A1 Radon Services LLC
A1 Radon Services LLC
5.0(
376
)
Radon Gas - AbatementRadon Gas - Testing

Serving Cottage Grove, MN and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"We were 100% pleased with the work done by A1 Radon Services. They were able to schedule us quickly, they arrived right on time, and the installation went perfectly. A short time later we tested again for radon and the number had gone from 9 to 1. We highly recommend. them."
radan fan and vent pipe running through attic space
Radon fan in garage rafters
Outdoor radon fan RP145
Outdoor radon mitigation system
outdoor radon mitigation system

+19

Response time7 hrs
5 neighbors recently requested a quote
Recommended by98%of homeowners
Midland Home Inspections
5.0(
2
)
Radon Gas - Testing

Serving Cottage Grove, MN and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

Midland Home Inspections is your best choice in the Woodbury area for all your inspection needs! We pride ourselves on providing the highest quality inspections and our customer service is second to none! With over 11 years experience, you can count on us to get the job done right! Call us today for a free estimate!

Response time7 hrs
Recommended by100%of homeowners
Avatar for Aztec Asbestos Removal LLC
Aztec Asbestos Removal LLC
4.4(
8
)
Radon Gas - Testing

Serving Cottage Grove, MN and surrounding areas

Approved

Free estimates

Emergency services offered

Credit card accepted

Aztec Asbestos Removal LLC offers the removal of asbestos for commercial and residential properties. \n\nWe started in 2011 and have been providing excellent asbestos removal service ever since. We have withheld a rating of A+ through the Better Business Bureau reflecting our strict safety procedures and impeccable work ethic since 2013. We strive to offer excellent customer satisfaction by being very flexible and available, on top of making safety our #1 priority.\n\nWe are licensed in Minnesota and offer professional asbestos air sampling.

3 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Radone, LLC
Radone, LLC
4.9(
24
)
Radon Gas - AbatementRadon Gas - Testing

Serving Cottage Grove, MN and surrounding areas

In business since 2015

Free estimates

Warranties offered

"Sam was on time for the estimate appointment that was scheduled. He was very friendly and professional. He was not pushy in any form. On the day of the scheduled service appointment he showed up ready to work and was again very friendly and easy to communicate with. He got the work done in a very reasonable amount of time and his electrician showed up on time and was the same. We will have our after mitigation radon testing done and I will update my review then."
Response time4 hrs
Response rate86%
Recommended by100%of homeowners
Avatar for TJ Radon
TJ Radon
5.0(
7
)
Radon Gas - AbatementRadon Gas - Testing

Serving Cottage Grove, MN and surrounding areas

In business since 2018

Free estimates

Credit card accepted

"John called me while I was reading reviews about TJ on angies list. He educated me about radon mitigation. I checked out a couple other companies and decided to go with TJ as they were able to come out the very next day and offered the best price. They arrived at exactly 9 am as they said they would. They evaluated the best method of mitigation for our house and explained their choices. They were done at the time they said they would be and cleaned up after themselves. They left a prepaid radon tester so that we could independently see they had brought the radon level down. Good results came back yesterday! I would highly recommend them!"
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+12

Recommended by100%of homeowners
Avatar for Radiant Radon LLC
Radiant Radon LLC
5.0(
17
)
Radon Gas - AbatementRadon Gas - Testing

Serving Cottage Grove, MN and surrounding areas

In business since 2021

Free estimates

"Radiant Radon LLC did a great job. I am a Realtor and was representing a client selling house. The buyer wanted a Radon test done before the closing of the house. We were on a tight schedule and Jon was prompt and professional. He did the inspection and then also did the mitigation. Service was well done and affordable with good communication. Client and buyer were happy with results and the house got sold. Thanks Jon! Had a good experience using your company and will reach out to you again for any future Radon testing/mitigation needs."
Radon Detection & Reduction Project
Radon Detection & Reduction Project
Radon Detection & Reduction Project
Radon Detection & Reduction Project
Additional Photos

+15

Recommended by100%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

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.

Ideally, no one will live in a house with elevated radon levels, as prolonged exposure increases the risk of serious health issues like lung cancer. However, homes with radon can be made safe through mitigation systems, such as active soil depressurization. Testing for radon regularly and addressing high levels helps ensure a safe living environment.

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

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

The Cottage Grove, MN 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.