Residential radon mitigation system installed on a Colorado home

Denver metro & Colorado Front Range

Colorado Radon Mitigation Service Areas

One trusted local team for residential radon testing and mitigation from Denver and Boulder to the foothills and south metro.

Free in-person estimateGuaranteed below 2.7 pCi/LLifetime warranty

Local coverage

Radon expertise across the Front Range

Custom Radon Solutions is based in Westminster and serves homeowners throughout the Denver metro, Boulder County, Jefferson County, Adams County, Arapahoe County, Douglas County, and surrounding Front Range communities. Our service area includes established neighborhoods, foothill properties, newer subdivisions, and homes with every common Colorado foundation type.

Colorado homes can test high for radon regardless of age, location, foundation style, or the result next door. We provide free in-person estimates, foundation-specific system design, typical 3–4 hour installation, post-install verification, and a guarantee that the completed system will reduce levels below 2.7 pCi/L.

Find your city

Residential radon mitigation near you

Select a city for local foundation guidance, neighborhoods served, FAQs, and estimate details.

Radon Mitigation Arvada

Jefferson and Adams counties

Local radon systems for Arvada basements, crawlspaces, sump pits, and slab foundations.

Radon Mitigation Aurora

Arapahoe, Adams, and Douglas counties

Aurora covers a wide area and includes older central neighborhoods, large suburban subdivisions, and active new-home development. Foundation types range from full basements to garden levels, crawlspaces, and slab-on-grade construction. Radon can enter through any of these assemblies when soil gas is pulled toward lower indoor pressure.

Radon Mitigation Boulder

Boulder County

Boulder County’s Front Range geology is well known for elevated radon potential, but risk cannot be judged by neighborhood, slope, or home value. Radon may accumulate in older basements, slab-on-grade additions, garden-level rooms, and tightly sealed high-performance homes. Testing provides the only property-specific answer.

Radon Mitigation Broomfield

City and County of Broomfield

Broomfield sits between the Denver and Boulder markets and includes both established subdivisions and substantial newer development. Elevated radon can occur in any of these homes because the source is the soil beneath the foundation, not the age or condition of the property.

Radon Mitigation Castle Rock

Douglas County

Castle Rock combines rolling terrain, newer master-planned neighborhoods, custom homes, and older properties near the town center. Radon can accumulate in basements and lower living spaces regardless of the home’s age. Sloped sites and walkout foundations can also create several pressure zones beneath one structure.

Radon Mitigation Centennial

Arapahoe County

Centennial homes often combine large finished basements, multiple wings, attached garages, and landscaped lots. Those features make system planning important: the goal is to establish reliable suction beneath the occupied foundation while choosing a pipe route that respects finished space and the exterior design.

Radon Mitigation Denver

City and County of Denver

Denver homes sit on Colorado Front Range soils where uranium naturally breaks down and releases radon gas. The gas can enter through slab cracks, plumbing penetrations, foundation joints, sump pits, and exposed soil in crawlspaces. Because neighboring houses can test very differently, the only reliable way to understand a property is to test it.

Radon Mitigation Golden

Jefferson County

Golden-area homes meet the foothills, where sloped lots, shallow rock, variable soils, crawlspaces, and walkout foundations can make radon behavior less predictable. A low result at one property does not establish the risk next door; every home needs its own test.

Radon Mitigation Lakewood

Jefferson County

Lakewood stretches from established neighborhoods near Denver to foothill-facing communities where geology, grading, and foundation design can change block by block. Radon moves from the soil into lower levels through pressure differences, making basements, garden-level rooms, crawlspaces, and slab joints the primary areas to evaluate.

Radon Mitigation Littleton

Arapahoe, Jefferson, and Douglas counties

The Littleton mailing area spans historic neighborhoods, mature suburban communities, and foothill-adjacent development. Homes may include older full basements, crawlspaces, additions, walkout levels, and newer engineered foundations. Each condition changes how soil gas moves beneath the structure.

Radon Mitigation Longmont

Boulder and Weld counties

Longmont spans historic blocks, postwar neighborhoods, rural-edge properties, and substantial newer development across Boulder and Weld counties. Homes can have stone or block foundations, full basements, crawlspaces, sump pits, additions, and newer passive radon rough-ins.

Radon Mitigation Parker

Douglas County

Parker’s growth has produced large suburban communities, custom homes, and active construction across Douglas County. Newer construction does not eliminate radon risk: gas still originates in the soil and can move through slab joints, sump openings, utility penetrations, and foundation transitions.

Radon Mitigation Thornton

Adams and Weld counties

Thornton has grown from established south-city neighborhoods into large northern subdivisions and semi-rural edges. Across that range, homes can have full basements, partial basements, slab sections, sump pits, and construction joints that provide paths for radon-bearing soil gas.

Radon Mitigation Westminster

Adams and Jefferson counties

Westminster is home base for Custom Radon Solutions. From established brick ranches near the historic core to larger homes around Standley Lake and newer northwest neighborhoods, we understand the range of foundations and routing challenges found across the city.

Not seeing your city?

Ask about service anywhere in the Denver metro

Our crews travel throughout the surrounding Front Range. Call with your address and we will confirm availability for a free estimate.

Call (303) 990-4506

Same-Day Estimates

Get your free estimate in under a minute

Answer a few quick questions and we’ll get right back to you—often the same day. No obligation, no pressure, just a clear plan to make your Denver home safe.

Same-day response
Request before 2pm and we’ll usually reach out today.
Guaranteed results
We guarantee radon levels below 2.7 pCi/L.
Certified & insured
Backed by a lifetime system warranty.

(303) 990-4506 Gagemirich@gmail.com

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