Colorado

Radon Professionals in Colorado

428 certified professionals 95 cities High Radon Risk (EPA Zone 1)

Find NRPP-certified radon testing and mitigation professionals across Colorado. Browse by city to see professionals in your area. Colorado requires radon disclosure during real estate transactions.

High Radon Risk State

Colorado is classified as EPA Zone 1, meaning the predicted average indoor radon screening level is above 4 pCi/L (the EPA action level). The EPA strongly recommends that all homes in Colorado be tested for radon. If elevated levels are found, a certified mitigation professional can install a system to reduce radon by up to 99%.

Browse by City

Select your city to see certified radon professionals in your area.

Alma 1 Arvada 7 Aurora 24 Avon 4 Bailey 1 Bayfield 2 Bennett 1 Berthoud 2 Boulder 1 Breckenridge 3 Brighton 5 Broomfield 6 Brush 1 Buena Vista 2 Burlington 1 Calhan 2 Canon City 1 Carbondale 1 Castle Pines 2 Castle Rock 13 Centennial 2 Clifton 1 Colorado Springs 47 Commerce City 1 Crested Butte 1 Delta 2 Denver 60 Dolores 2 Durango 8 Eagle 5 Eaton 1 Edwards 2 Elbert 1 Elizabeth 2 Englewood 5 Erie 1 Firestone 3 Florissant 2 Fort Collins 18 Fort Lupton 2 Fountain 3 Foxfield 1 Frederick 3 Frisco 2 Fruita 2 Gill 1 Glade Park 1 Glenwood Springs 4 Grand Junction 13 Greeley 6 Gunnison 1 Gypsum 2 Hartsel 1 Hot Sulphur Springs 1 Johnstown 2 La Junta 1 Lafayette 2 Lakewood 14 Larkspur 1 Leadville 2 Littleton 4 Longmont 6 Louisville 2 Loveland 14 Lyons 1 Mack 1 Mancos 2 Manitou Springs 1 Milliken 3 Montrose 7 Monument 3 Northglenn 1 Pagosa Springs 4 Palisade 1 Palmer Lake 2 Parker 14 Peyton 3 Poncha Springs 1 Pueblo 3 Pueblo West 2 Salida 1 Silt 2 Silver Cliff 1 Silverthorne 2 Steamboat Springs 8 Sterling 1 Strasburg 2 Thornton 4 Trinidad 3 Wellington 3 Westminster 5 Wheat Ridge 7 Wiggins 1 Windsor 2 Woodland Park 2

Radon Services in Colorado

Colorado has 428 NRPP-certified radon professionals in our directory across 95 cities. 144 are certified for radon mitigation system installation. 321 hold radon testing certifications.

All professionals listed are certified through the National Radon Proficiency Program (NRPP), which is administered by AARST. NRPP certification requires passing a national exam, maintaining continuing education, and following strict quality assurance protocols.

Radon Guides for Colorado

Find a Radon Pro

How to Find a Certified Radon Professional in Colorado

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Radon Disclosure

Radon Disclosure Requirements When Selling a Home in Colorado

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