Radon is an odorless and colorless radioactive gas that forms through the natural breaking down of uranium in soil, water, and rocks. 

As of July 1, 2022 all contractors conducting radon measurement and/or mitigation in Colorado must be licensed by the Colorado Department of Regulatory Agencies (DORA).  To search for certified radon professionals or verify the contractor you have selected is licensed by DORA, visit the DORA professional or business license search engine.

Low Income Radon Mitigation Assistance program

The Colorado Department of Public Health and Environment (CDPHE) low income radon mitigation assistance program's purpose is to provide financial assistance to low-income individuals for radon mitigation services. The intent of the program is to enhance a safe living environment for low-income homeowners in Colorado.