About Radon Stoppers, LLC
Your Trusted, Certified Radon Authority — family-owned and serving Minnesota since 2014.
Trusted Radon Mitigation — Family-Owned Since 2014
Radon Stoppers, LLC is an experienced and reliable radon mitigation company offering prompt and efficient services in Monticello, Minneapolis, St. Paul, St. Cloud, Buffalo, and many more areas across Central Minnesota. We have a team of highly trained and qualified staff ready to serve you any day of the week.
We are E.P.A. trained and NRPP certified. Trust that we use the best equipment and we will find the most ideal radon mitigation system that will work best according to your needs and budget — with results you can see almost immediately.
Founded by Patrick Brennan, Radon Stoppers is a family-owned and operated small business built on over 25 years of framing and carpentry experience. Every project receives the same care we'd give our own home — because for us, this is family.
“Patrick and Norm did a fantastic job. Professional from the first time we spoke all the way to completion and follow up.”
— Jeff M., Monticello, MN

Owned
Labor Warranty
Meet the People Behind Radon Stoppers

Patrick Brennan
Founder and lead installer with more than 25 years of framing and carpentry experience and 201 hours of NRPP training. Dual NRPP certified — Radon Measurement Professional (#106465-RMP) and Radon Mitigation Specialist (#106466-RMS), active since January 2014. His deep understanding of home structures and airflow allows him to design systems that perform reliably.

Benjamin Brennan
Representing the next generation of the Brennan family, Benjamin brings precision, pride, and professionalism to every installation. Trained directly by his father, he understands the importance of safety, quality, and attention to detail. Protecting local families with honest work and lasting results.

Samantha Brennan
Samantha manages client communication, scheduling, and marketing for Radon Stoppers. She ensures every homeowner feels informed and supported from the first call to project completion — delivering personal, family-level care to every customer.
Licensed, Certified & Trusted
NRPP Dual Certified
Radon Measurement Professional #106465-RMP
Radon Mitigation Specialist #106466-RMS
Certified since Jan 2014 · Valid through Apr 2028
EPA Trained
Trained under EPA protocols for radon mitigation system design and installation best practices.
Licensed & Insured
Fully licensed and insured in the state of Minnesota. Your home and family are fully protected.
ANSI/AARST Compliant
All systems installed in strict compliance with ANSI/AARST radon mitigation standards.
Ready to make your homesafe from Radon?
Call us for a free, no-obligation assessment and quote specific to your property.