Radon Mitigation Cost in Boulder (2026): Average Price & Estimate

Radon Mitigation Cost in Boulder

Estimated radon mitigation cost in Boulder

$950–$2,950

Roughly about 18% above the national average.

High demand and strict codes raise costs well above average.

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System type

Foundation

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Based on Boulder, CO pricing.

Estimated cost range

$950–$2,950

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An estimate for planning, not a quote. Get written quotes from local pros below.

Estimate, not a quote. Local prices vary by contractor and project. These are 2026 estimates for Boulder, CO. Get written quotes from licensed Boulder contractors before you budget.

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What to know about radon mitigation in Boulder

Frost heave and freeze-thaw in Boulder can stress foundations, so good drainage and proper footing depth matter for a lasting result.

What affects radon mitigation cost in Boulder

Beyond the local market, the same factors that drive radon mitigation cost everywhere apply in Boulder:

System type and number of suction points.
Foundation type: slab, basement, or crawlspace.
Fan size and routing of the vent pipe.
Sealing of cracks and openings.

Radon Mitigation cost by system type in Boulder

These figures are adjusted for Boulder pricing (about 1.18x the national average), so they reflect what local homeowners actually pay.

Estimated radon mitigation cost by system type in Boulder (2026)

System type	Typical cost in Boulder	Notes
Sub-slab suction	$950 to $2,950	The baseline.
Sump-pit system	$1,050 to $3,250	installed
Crawlspace membrane	$1,300 to $4,150	installed
Multiple suction points	$1,400 to $4,450	installed

Frequently asked questions

How much does radon mitigation cost in Boulder?

In Boulder, CO, radon mitigation typically costs $950 to $2,950 in 2026 for a standard project, about 18% above the national average. Your exact price depends on size, materials, and scope.

Why does radon mitigation cost more or less in Boulder?

High demand and strict codes raise costs well above average. Labor rates, permit costs, and local demand are the main reasons Boulder prices differ from the national average.

Do I need a permit for radon mitigation in Boulder?

Most radon mitigation projects require a permit. Requirements vary by city and Colorado jurisdiction, so confirm with your local building department. A licensed contractor usually pulls the permit for you.

When is the best time of year for radon mitigation in Boulder?

In Boulder, exterior work is easiest from late spring through early fall. Winter weather can delay roofing, siding, concrete, and foundation jobs, and some crews book up fast once the weather breaks.

Is radon mitigation cheaper outside Boulder?

Sometimes. Boulder runs about 18% above the national average. Nearby smaller towns with lower labor costs can come in cheaper, while denser urban areas often cost more. Always compare quotes from contractors who serve your specific area.