serving oh & MI families


Radon Environmental Services of Toledo, Inc. had its genesis in the mid 1980’s during America’s energy crisis. Our founder was in the new field of home solar and weatherization programs encouraged through government tax credits. However, as homes were retrofitted for energy savings, a new concern arose….indoor air quality. That is when radon testing in homes began as new EPA guidelines for air quality emerged.

In 1988 James Mann started Radon Environmental Services in Toledo, OH, as the area’s first professional radon testing and mitigation company. Mr. Mann was involved in setting early EPA guidelines and in Ohio’s radon licensing program in the early 1990’s.

At one time or another, the entire family has been involved with various aspects of the business and today, after 33 years of serving Northwest Ohio, North Central Ohio, and Southeast Michigan families, the next generation of family operates Radon Environmental Services.

our mission


The mission of Radon Environmental Services is to raise public awareness of the danger of radon gas exposure in homes, schools, and commercial properties. Our goal is to provide the best radon testing and mitigation services in Northwest Ohio, North Central Ohio, and Southeast Michigan.



James Mann

Founder & president

James has entered “elder statesman” status as the next generation of family now owns and operates the company. However, James continues to hold his Ohio state radon mitigation license, attend continuing education classes and consult on various projects.

OH License #RC16

Erinn (Mann) Wilson


Erinn is the pleasant and knowledgeable voice of REST. The second person to gain her testing credentials, becoming licensed in 2000, she is our primary tester and mitigation scheduler. With over 20 years of practical knowledge, she will make your experience with REST a positive, informative and thorough one.

OH rADON tESTER License #Rt309

J. Peter Mann


Peter was an installer for 5 years and after a break from the family business he is back, obtaining his radon specialist license in 2017. He is very knowledgeable about radon mitigation and the different mitigation techniques. If you have any radon mitigation questions he is the one to ask.


Ron Mann


Ron joined our team in 2009 and has lived and worked in the Cleveland area for over 30 years. He currently resides with his wife Debi in Vermilion, Ohio. With his contacts and knowledge of the area, he is helping us expand services into northcentral and northeastern Ohio. Ron received his Ohio radon license in 2009.

OH Radon Tester License #RT699

Gary Kujawa

Chief Installer

Gary is a Toledo native, having worked for B&T Plumbing for 15 years earning his Master Plumber certification before joining the team at Radon Environmental Services in 2011. Gary takes a lot of pride in the installation of our radon systems and is always helpful with our customer’s questions and concerns.
Radon Environmental Services did an absolutely fantastic job. Everything looks so clean and nice. They went above and beyond to seal the crawl space and the sump pump cover. Before they left they showed us how to use everything and what to look for. Great company. I would recommend them to everyone.
Jacolyn W.
Service: Radon Mitigation

Let ouR experienced team help you.



mEMBERSHIPS, & Certifications

We know the importance of choosing a company that you can trust. With A+ ratings from the Better Business Bureau and a licensed team you can rest easy knowing that Radon Environmental Services will provide the best possible radon testing and mitigation services.