Certified Radon Mitigators
in Castle Rock, Colorado

Castle Rock in Douglas County sits between Denver and Colorado Springs, where the transition from plains geology to Front Range foothills creates some of the highest radon readings in the state. Douglas County has produced statewide radon averages above 8 pCi/L in EPA surveys — well above Colorado's already-elevated 6.6 pCi/L — and Castle Rock neighborhoods including The Meadows, Crystal Valley, and Castlewood Ranch require testing as standard practice. The county's rapid growth has brought a large certified contractor market to the area, and most new construction in Douglas County now includes radon-resistant features, though these require verification. Testing after move-in is strongly recommended regardless of builder claims.