Find Radon Testers in Colorado
Certified radon testing and mitigation professionals across Colorado. Browse 20+ listed providers below.
Radon Risk Level
EPA data for this state
High radon state — elevated throughout the Front Range and mountains.
Browse by City in Colorado
Denver
63 providers
Colorado Springs
47 providers
Littleton
37 providers
Aurora
26 providers
Centennial
26 providers
Lakewood
22 providers
Fort Collins
22 providers
Englewood
18 providers
Arvada
15 providers
Parker
15 providers
Westminster
15 providers
Castle Rock
13 providers
Loveland
13 providers
Thornton
11 providers
Broomfield
9 providers
Grand Junction
9 providers
Highlands Ranch
9 providers
Steamboat Springs
8 providers
Durango
8 providers
Brighton
6 providers
Greeley
6 providers
Longmont
6 providers
Wheat Ridge
6 providers
Montrose
5 providers
Pagosa Springs
5 providers
Breckenridge
5 providers
Eagle
5 providers
Golden
5 providers
Fountain
5 providers
Morrison
4 providers
Avon
4 providers
Glenwood Springs
4 providers
Monument
4 providers
Bayfield
3 providers
Peyton
3 providers
Trinidad
3 providers
Frederick
3 providers
Lone Tree
3 providers
Pueblo
3 providers
Berthoud
3 providers
Calhan
3 providers
Firestone
3 providers
Milliken
2 providers
Mancos
2 providers
Buena Vista
2 providers
Evergreen
2 providers
Fruita
2 providers
Pueblo West
2 providers
Wellington
2 providers
Strasburg
2 providers
Woodland Park
2 providers
Castle Pines
2 providers
Edwards
2 providers
Delta
2 providers
Johnstown
2 providers
Leadville
2 providers
Florissant
2 providers
Lafayette
2 providers
Silt
2 providers
Silverthorne
2 providers
Windsor
2 providers
Dolores
2 providers
Elizabeth
2 providers
Fort Lupton
2 providers
Frisco
2 providers
Louisville
2 providers
Northglenn
2 providers
Bailey
1 provider
colorado springs
1 provider
Gypsum
1 provider
Pine
1 provider
Poncha Springs
1 provider
Palisade
1 provider
Sterling
1 provider
Burlington
1 provider
Alma
1 provider
Elbert
1 provider
Silver Cliff
1 provider
thornton
1 provider
Bennett
1 provider
Boulder
1 provider
Carbondale
1 provider
Brush
1 provider
Clifton
1 provider
Commerce City
1 provider
Eaton
1 provider
Glade Park
1 provider
Hartsel
1 provider
Canon City
1 provider
City
1 provider
Crested Butte
1 provider
Erie
1 provider
Foxfield
1 provider
Gill
1 provider
Gunnison
1 provider
Hot Sulphur Springs
1 provider
La Junta
1 provider
Larkspur
1 provider
Mack
1 provider
Lyons
1 provider
Palmer Lake
1 provider
Salida
1 provider
Tabernash
1 provider
Wiggins
1 provider
Radon Providers in Colorado(showing top 20)
Radon Testing in Colorado — FAQ
How often should I test for radon in Colorado?
The EPA recommends testing every two years in Colorado. Always test when moving into a new home, after renovations that affect lower levels, and after installing a mitigation system.
What is the EPA action level for radon?
The EPA recommends taking action to reduce radon if indoor levels reach 4 pCi/L or higher. Even levels between 2–4 pCi/L present risk, and mitigation is recommended where feasible.
Do I need a certified radon tester in Colorado?
For real estate transactions, most states require a certified tester. Look for NRPP or AARST-NRPP certification. Colorado may also have its own state program — check your state radon office for specific requirements.