1st DeFense Radon Testing and Mitigation, LLC

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99% Recommended

9 Years In Business

Company Details

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9120 Hillside Trail South
Cottage Grove, MN 55016

Hours

Mon: 7:00 AM - 8:00 PM
Tue: 7:00 AM - 8:00 PM
Wed: 7:00 AM - 8:00 PM
Thu: 7:00 AM - 8:00 PM
Fri: 7:00 AM - 8:00 PM

Sat: 7:00 AM - 8:00 PM
Sun: —

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Achievements

Service Details

Areas of Expertise

Radon Gas - Testing
Radon Gas - Abatement

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Cost Information

Free Estimates

Ratings

4.9

199 Verified Reviews

5

190
4

8
3

1
2

0
1

0

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Showing 1-10 of 199 results

5.0 Garth D. Saint Paul, MN

5/28/2025

Mitigate Radon Gas

1st Defense was able to install the radon system the next day. The post installation radon level was down to 0.2. Very satisfied.

5.0 Aaron J. Minneapolis, MN

5/12/2025

Mitigate Radon Gas

Great communication and completed the job quickly.

5.0 Jessica O. Cottage Grove, MN

4/14/2025

This is one of the best companies we’ve ever worked with! Steve is informative and does great work! Radon mitigation system is outstanding and doing exactly what it’s supposed to be doing!

5.0 Stephen H. Saint Paul, MN

3/30/2025

Mitigate Radon Gas

This company provided prompt and gracious service for considerably cheaper than their competitors. I had them replace the exhaust fan in my radon reduction system. I recommend them highly.

5.0 Don D. Minneapolis, MN

2/10/2025

Mitigate Radon Gas

Steve and Jesse did an outstanding job. Prompt, professional and reasonably priced. High recommend them !!

5.0 Andrea G. Saint Paul, MN

1/27/2025

Mitigate Radon Gas

Steve was incredible fast and responsive with getting our testing done. He was great to work with and we would definitely use him again.

5.0 Todd H. Saint Paul, MN

12/10/2024

Mitigate Radon Gas

They did an excellent job and the price was very reasonable. He went above and beyond to make sure it was done right.

5.0 Yanbing L. Saint Paul, MN

10/14/2024

Mitigate Radon Gas

Great workï¼

5.0 Afton S. Saint Paul, MN

10/7/2024

Mitigate Radon Gas

Steve was super easy to work with and was able to do the job asap which was awesome. Highly recommend.

5.0 Radicca R. Farmington, MN

9/6/2024

Mitigate Radon Gas

Easy, responsive and reasonable

Showing 1-10 of 199 results Showing 0 of 0 results

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