Dedication & Hard Work
Reliant Radon is all about dedication & hard work. Dedication to making sure the air your breathing is safe whether for your home, school, daycare, or business building. Our team of experts will be there every step of the way with radon gas testing and mitigation.
Care & Details
Servicing Denver and the surrounding areas, we take a great deal of pride in our customer care. There are a lot of details to worry about radon testing, monitoring, & mitigation. Whatever the type of your home or facility you need help with, we’ll be there taking care of you.
Putting Our Customers First
From the first radon gas test through the mitigation process, our certified team will be there to assist with your questions.
Licensed Certified and/or Members of:
Meet the Team:
Terry Kerwin – Owner/Manager
NRPP #108850RMP, #109299 RMS, Colorado License RMT.0000052,
MFM, AARST Board Member, and also Former President and Active Board Member, Rocky Mountain Chapter of AARST.
See the definitions of these certifications
With a background in finance and management, after 20 years of helping run and grow our successful family plumbing business, I decided I wanted my own company. I wanted a company that I could be passionate about and one that would make a difference. Lung cancer prevention and education struck a very personal chord with me, so I decided to start a radon testing and mitigation company. Meeting Steve Shaw, the previous owner of Reliant Radon Solutions, who was ready to retire, made things fall into place. I’m dedicated to excellent customer service and to doing things the correct way. The staff at Reliant Radon are all top-notch and also dedicated to being the best in this business. We’re focused on saving lives, not just turning a dollar.
Joe started with Reliant Radon Solutions in 2017 and has been doing radon work since 2005. Joe’s experience in the field, coupled with his experience in advanced and cutting edge installations, make him an excellent technician. Joe is often complimented by home owners on his professionalism, friendliness and quality of work. In his free time, Joe enjoys camping, fishing and craft breweries.
Heidi was born and raised in New Orleans, Louisiana. She graduated from University of New Orleans with a BS in Business and Marketing. Her career path in Medical and Pharmaceutical Sales and Real Estate give her insight to the effects of Radon in health and real estate transactions. Certified in Radon Measurement, Heidi is qualified for effective testing procedures and protocols. Heidi lives in Highlands Ranch with her husband and twin boys. She joined the Reliant Radon Solutions team in April 2016. As a mother, she understands the dangers of high levels of radon and believes in our vision of saving lives one system at a time.
Ali was born and raised in Arvada, Colorado. She graduated from Regis University with a Bachelors of Science in Neuroscience. She is certified in proper radon measurements, following the EPA protocols. She understands the importance of testing homes and businesses for radon and the health risks that are caused by radon exposure. Ali believes in our vision of saving lives one system at a time.
Tina was born and raised in Broomfield, Colorado, and resides with her husband and two dogs in Dacono, Colorado. She is actively working on her Bachelor's Degree in Business Administration with a minor in Healthcare Administration. She is certified in proper radon measurements, following the EPA protocols. With her long background in Healthcare management and healthcare in general, she is working towards helping others understand the importance of testing homes and businesses for radon and the health risks that are caused by radon exposure. With family members and family-friends lost to lung cancer, Tina understands the dangers of high levels of radon and believes in our vision of saving lives one system at a time.
Jay S. – Mitigation Technician
NRPP Cert. # 112863RMS,
Colorado License RMT.0000062
Jay started with Reliant Radon Solutions in 2008 and has a strong background in construction and foundations. A true craftsman, he takes pride in his work and never takes a short cut. He is known for his cleanliness and great work. He has done over a 1,000 mitigation systems and each one is a work of art. Jay enjoys watching the Denver Broncos in his spare time and loves all animals.
Tanner started installing radon systems in 2019 in Virginia. He moved to Denver and started with Reliant Radon Solutions in 2021. Tanner is timely, and not only takes pride in the work he does, but also in the impact that it has on people's lives. He treats every home as if it were his own. New to Colorado, he spends a lot of his free time exploring the outdoors. He also enjoys playing guitar.