Helping Neighbors

Helping Colorado Families

John and Tricia Cardos have spent over ten years as a couple, and one thing they have always shared was the desire to start their own company. American Radon LLC came to fruition after the better part of a decade working together in the radon mitigation industry.  Taking note of the out-of-state, corporate, and “money making” companies that were operating in Colorado, they choose to do things their own way. The honest way.

Knowing that people in their own community were overpaying for a lifesaving service is not acceptable.  Radon mitigation should be accessible to all Coloradans, and now it is.

John and Tricia enjoy living in Morrison, and all the adventures living in the foothills brings.  They love hiking with their two crazy dogs and chasing after their silly toddler.  Snowboarding, fishing, camping, and eating too much pizza are also some favorite pass times.  The entire family enjoys daily walks, no matter what the crazy Colorado weather brings.


John was born in the Midwest before becoming a Colorado transplant at the age of 12. He began his 20 plus year construction career shortly after. After owning and operating a landscape company for 5 years, he worked in the custom woodworking and home renovation industry. John’s experience doing custom residential remodels and the determination for making people’s homes safe while still beautiful provides his customers with an advantage.

John is a graduate of Western Regional Training Center at the University of Colorado, (The WRTC Radon Training Center). He’s also certified for Radon Measurement/testing and Radon Mitigation and licensed by the NRPP, (The National Radon Proficiency Program) for radon mitigation.


Tricia grew up in a small eastern town in Colorado. She began working for her parents’ business at the ripe old age of 7. It was a nice change of pace for her folks to pay an employee with a Barbie at the end of a hard day. Her passion for providing thoughtful customer service has stayed with her over the last 25 years, and her Type A personality keeps the business running like a well-oiled machine.