Get matched with top radon detection and reduction specialists in Littleton, CO

"Highly recommend! Came out gave me all the info I needed about Radon. Replaced my radon fan and retested ! Did a great job!"

"Jason was very helpful explaining the testing process, and possible mitigation if our Radon levels were high. Radon testing was setup and conduced quickly and our levels were in acceptable ranges, so no mitigation was required."

"Steve was flexible with my schedule and worked with me to put the radon system in a place that worked with our future plans for the house. He was knowledgeable and helpful! I highly recommend!"

"They showed up on time and finished within 2 hours completing radon mitigation system."

"I think it’s supposed to say global industries? Alex was a big help getting our radon installed he seems like he knows what he’s doing! He did say he would send an invoice though but hasn’t yet. Other than that all good. We are waiting for the test kit in the mail to ensure the system is working as expected!"

"All Colorado Radon tackled a particularly difficult radon mitigation that other companies refused to mitigate. They were very thorough and knowledgeable. Most of all, they were successful in reducing radon levels to well below government standards. We would use them again."

"I couldn't be more pleased with the radon mitigation service John provided. The estimate was accurate-no surprises. He was prompt, efficient and quick- it took just over 2 hours and that's including answering all my questions (and I had a lot of questions!). John's customer service was excellent and the results have so far exceeded my expectations. I am very glad I chose RMR."

"John did a great job. Our radon went down way more than I expected, to almost nothing. There were a couple of blips along the way, and they did everything to fix things with no trouble to me at all. I would highly recommend."

"HOLLY THE OFFICE MANAGER IS GREAT TO WORK WITH. I HAD RECEIVED AN ESTIMATE FOR RADON MITIGATION BACK IN MARCH AND WHEN I CALLED IN DECEMBER, SHE IMMEDIATELY SAID THE QUOTE WAS STILL GOOD. JASON ADAMS DID THE INSTALL AND DID A GREAT JOB. HE WAS VERY CAREFUL AND DID VERY EXACTING WORK. I WOULD HIGHLY RECOMMEND RADON SAFETY LLC. DAVE MAHAN, LAFAYETTE, CO."

Master Mitigators works with homeowners, buyers, sellers, real estate agents, builders, and business owners across Denver and the Front Range, where radon exposure remains a recognized concern. Colorado's soil and foundation construction create conditions that require informed assessment and tailored response. Addressing radon isn't only about installation—it's about understanding what's beneath your property and how to respond effectively.\n\nYou'll receive an evaluation that accounts for your foundation type, soil composition, and property layout. From there, the focus shifts to planning a system that fits your space without disrupting daily routines or compromising structural integrity. Every property presents different variables, and your solution should reflect that.\n\nReach out to Master Mitigators to schedule a radon assessment for your home or business.