Approved Pro
This pro has maintained an average of 4.5+ star throughout their time with Angi.
This pro has maintained an average of 4.5+ star 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 experience
Services we offer
Radon Gas - Abatement, Radon Gas - Testing
Amenities
Free Estimates
Yes
Reviews
4.9200 Reviews
| Number of Stars | Image of Distribution | Number of Ratings |
|---|---|---|
| 96% | ||
| 4% | ||
| 1% | ||
| 0% | ||
| 0% |
Filter reviews by service
Showing 1-25 of 200 reviews
Kathy S.
Jun 2025
Radon Gas Abatement
Steve called me and offered to come out and inspect my radon system and fix my problem within a couple hours of calling me. He replaced my defective fan and will be coming back to complete the rest of the issues next week. He was very prompt and knowledgeable.
Garth D.
May 2025
Radon Gas Abatement
1st Defense was able to install the radon system the next day. The post installation radon level was down to 0.2. Very satisfied.
Aaron J.
May 2025
Radon Gas Abatement
Great communication and completed the job quickly.
Jessica O.
Apr 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!
Stephen H.
Mar 2025
Radon Gas Abatement
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.
Don D.
Feb 2025
Radon Gas Abatement
Steve and Jesse did an outstanding job. Prompt, professional and reasonably priced. High recommend them !!
Andrea G.
Jan 2025
Radon Gas Abatement
Steve was incredible fast and responsive with getting our testing done. He was great to work with and we would definitely use him again.
Todd H.
Dec 2024
Radon Gas Abatement
They did an excellent job and the price was very reasonable. He went above and beyond to make sure it was done right.
Yanbing L.
Oct 2024
Radon Gas Abatement
Great workï¼
Afton S.
Oct 2024
Radon Gas Abatement
Steve was super easy to work with and was able to do the job asap which was awesome. Highly recommend.
Radicca R.
Sep 2024
Radon Gas Abatement
Easy, responsive and reasonable
Steve W.
Jul 2024
Radon Gas Abatement
Professional
Elena C.
Jul 2024
Radon Gas Abatement
Excellent, quick, and reasonably priced service. A must for radon mitigation.
Samuel T.
Jun 2024
Radon Gas Abatement
Good service
Carly L.
Apr 2024
Radon Gas Abatement
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!
Wesley G.
Sep 2023
Radon Gas Abatement
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.
Timothy K.
Aug 2023
Radon Gas Abatement
Good service.
Rick L.
Aug 2023
Radon Gas Abatement
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.
EUGENE W.
Jul 2023
Radon Gas Abatement
.
Tom Z.
Jun 2023
Radon Gas Abatement
Steve wasbgreat to workcwith
Joe P.
Jun 2023
Radon Gas Abatement
Very professional job.
Joe P.
May 2023
Direct and honest.
Roberto B.
May 2023
Radon Gas Abatement
STEVE is a really knowledgeable guy, knows his business, and does a professional job. Highly recommended
Carter M.
May 2023
Radon Gas Abatement
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.
Steve M.
May 2023
Radon Gas Abatement
Steve was personable, professional, and great to work with. He answered my questions clearly, and did a great job installing the equipment.
Licensing
State Contractor License Requirements
All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.
*Contact business to see additional licenses.
FAQ
1st DeFense Radon Testing and Mitigation, LLC is currently rated 4.9 overall out of 5.
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
| Sunday: | Closed |
| 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 |
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