1st DeFense Radon Testing and Mitigation, LLC

This pro has maintained an average of 4.5+ stars throughout their time with Angi.

About us

We pride ourselves on being number one in the area. We have built an excellent reputation for customer satisfaction, by providing quick estimates, great attention to detail and competitive pricing. Allow us to give your home the attention it deserves. Call us today and let us get started.

Business highlights

9 years of trusted experience

Amenities

Free Estimates
Yes

Reviews

4.9199 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
95%
4
4%
3
1%
2
0%
1
0%


Rating CategoryRating out of 5
quality
4.9
value
4.9
responsiveness
5.0
Showing 1-25 of 199 reviews

Garth D.
05/2025
5.0
1st Defense was able to install the radon system the next day. The post installation radon level was down to 0.2. Very satisfied.
Rating CategoryRating out of 5
$1,750

Aaron J.
05/2025
5.0
Great communication and completed the job quickly.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Jessica O.
04/2025
5.0
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!
Rating CategoryRating out of 5

Stephen H.
03/2025
5.0
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.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Don D.
02/2025
5.0
Steve and Jesse did an outstanding job. Prompt, professional and reasonably priced. High recommend them !!
Rating CategoryRating out of 5
$1,950

Andrea G.
01/2025
5.0
Steve was incredible fast and responsive with getting our testing done. He was great to work with and we would definitely use him again.
Rating CategoryRating out of 5

Todd H.
12/2024
5.0
They did an excellent job and the price was very reasonable. He went above and beyond to make sure it was done right.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Yanbing L.
10/2024
5.0
Great workï¼

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Afton S.
10/2024
5.0
Steve was super easy to work with and was able to do the job asap which was awesome. Highly recommend.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Radicca R.
09/2024
5.0
Easy, responsive and reasonable

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Steve W.
07/2024
5.0
Professional

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Elena C.
07/2024
5.0
Excellent, quick, and reasonably priced service. A must for radon mitigation.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Samuel T.
06/2024
5.0
Good service

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Carly L.
04/2024
5.0
Steve is incredibly knowledgeable, friendly, and eager to help in any way he can. I would definitely recommend him 10/10 to anyone I know!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$1,800

wesley g.
09/2023
5.0
Steve called me quickly and came out to lay out a plan for removing the radon from my house. They were fast and neat and informed me as they were doing the job. I was really satisfied and would recommend his company to any of my friends.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$1,750

Timothy K.
08/2023
5.0
Good service.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Rick L.
08/2023
5.0
Steve was extremely proactive and efficient. He contacted me quickly and quoted a reasonable price on the phone. He did the work within a few days and kept me informed of each step.

Rating CategoryRating out of 5
quality
4.5
value
5.0
responsiveness
4.5

Yes, I recommend this pro
$1,750

EUGENE W.
07/2023
5.0
.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Tom Z.
06/2023
5.0
Steve wasbgreat to workcwith

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

joe P.
06/2023
5.0
Very professional job.

Rating CategoryRating out of 5
quality
5.0
value
4.5
responsiveness
5.0

Yes, I recommend this pro

joe P.
05/2023
4.5
Direct and honest.

Rating CategoryRating out of 5
quality
4.5
value
4.5
responsiveness
4.5

Yes, I recommend this pro

Roberto B.
05/2023
5.0
STEVE is a really knowledgeable guy, knows his business, and does a professional job. Highly recommended

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Carter M.
05/2023
5.0
Steve did an amazing job. He had excellent customer service and made sure to explain things thoroughly and wanted to make sure what was done was best.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$1,750

Steve M.
05/2023
5.0
Steve was personable, professional, and great to work with. He answered my questions clearly, and did a great job installing the equipment.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$1,750

Kari B.
04/2023
5.0
Steve was great to work with. He completed the job earlier than expected and the system works very well. He is very friendly and personable as well!

Rating CategoryRating out of 5
quality
4.0
value
4.0
responsiveness
5.0

Yes, I recommend this pro
$2,000

Contact information

9120 Hillside Trail South, Cottage Grove, MN 55016


Service hours

Monday:
7:00 AM - 8:00 PM
Tuesday:
7:00 AM - 8:00 PM
Wednesday:
7:00 AM - 8:00 PM
Thursday:
7:00 AM - 8:00 PM
Friday:
7:00 AM - 8:00 PM
Saturday:
7:00 AM - 8:00 PM
Sunday:
Closed

Service Categories


FAQ

Monday: 7:00 AM - 8:00 PM

Tuesday: 7:00 AM - 8:00 PM

Wednesday: 7:00 AM - 8:00 PM

Thursday: 7:00 AM - 8:00 PM

Friday: 7:00 AM - 8:00 PM

Saturday: 7:00 AM - 8:00 PM

Sunday: Closed

Yes, 1st DeFense Radon Testing and Mitigation, LLC offers free project estimates.
No, 1st DeFense Radon Testing and Mitigation, LLC does not offer eco-friendly accreditations.
No, 1st DeFense Radon Testing and Mitigation, LLC does not offer a senior discount.
No, 1st DeFense Radon Testing and Mitigation, LLC does not offer emergency services.
No, 1st DeFense Radon Testing and Mitigation, LLC does not offer warranties.

Contact information

9120 Hillside Trail South, Cottage Grove, MN 55016


Service hours

Monday:
7:00 AM - 8:00 PM
Tuesday:
7:00 AM - 8:00 PM
Wednesday:
7:00 AM - 8:00 PM
Thursday:
7:00 AM - 8:00 PM
Friday:
7:00 AM - 8:00 PM
Saturday:
7:00 AM - 8:00 PM
Sunday:
Closed