How much does radon mitigation cost in Boulder, CO?

Most Boulder homeowners spend between $1,050 – $2,950 on radon mitigation, with an average around $2,000. Local labor prices 18% above the national average, so Boulder quotes tend to land at the higher end of national ranges.

Why is radon mitigation more or less expensive in Boulder than elsewhere?

Boulder is the priciest Front Range market with premium green-build standards. Snow loads, hail and wildfire-interface rules all apply.

Do I need a permit for radon mitigation in Boulder, Colorado?

Strict city permitting, energy codes and design review. Always confirm current requirements with the local building department before signing a contract, and make sure the permit is pulled by your licensed contractor.

How many quotes should I get in Boulder?

Get at least three written quotes from licensed, insured Colorado contractors. Comparing line items — not just the bottom line — is the fastest way to spot an inflated bid in the Denver market.

How much does radon mitigation cost in 2026?

Most homeowners pay between $900 and $2,500, with a national average near $1,700. Small, simple jobs land at the low end; large or premium-material jobs run well above the high end.

What is the cost per system?

Installed pricing usually runs $900.00 to $2,500.00 per system, including labor and materials. Expensive metros can run 15–45% higher than that range.

What drives the price up the most?

Scope and access. Larger quantities lower your per-system price, but difficult access, demolition of existing work, structural repairs found mid-job, premium materials and rush scheduling each add 8–30%.

Permits are typically required when the work changes structure or ties into electrical, plumbing, gas or mechanical systems. Budget $75–$600 in most cities and confirm whether your contractor pulls it — unpermitted work can block a future home sale.

How long does the job take?

Most residential projects of this type finish in one to five working days once materials are on site. Custom orders, inspections and weather are the usual causes of delay.

How many quotes should I get?

Three. Bids on the same scope commonly vary 20–40%, and the middle bid with the strongest warranty and references is usually the best value — the cheapest bid often excludes prep, disposal or permits.

Home/Cost guides/Radon Mitigation/Boulder, CO

Denver · Colorado

Radon Mitigation cost in Boulder, CO

Boulder homeowners typically pay $1,050 – $2,950 for radon mitigation. Local labor and materials price 18% above the national average.

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Boulder average

$2,000

Typical low

$1,050

Typical high

$2,950

Per system

$1,050 – $2,950

Sample ZIP

80301

What drives Boulder pricing

Local labor

Boulder is the priciest Front Range market with premium green-build standards.

Permits & code

Strict city permitting, energy codes and design review.

Climate & conditions

Snow loads, hail and wildfire-interface rules all apply.

Instant cost calculator

Adjust the inputs to see live pricing

Number of suction points1 system

Quality / material level

Site access

Removal / prep work

Timing

Estimated project cost

$1,188 – $1,615

Most homeowners pay around $1,401

Compare quality / material level

Cost by material in Boulder

Installed Boulder pricing per system.

Option	Installed cost	Pros	Cons
Single-point sub-slab system	$1,250 – $1,700	—	—
Sub-slab with sealing	$1,700 – $2,250	—	—
Crawlspace membrane system	$2,250 – $2,900	—	—
Multi-point system with monitoring	$2,900 – $4,000	—	—

Where the money goes in Boulder

A typical $2,000 Boulder project, broken down by line item.

Labor0.45% · $9
Materials0.38% · $8
Permits & inspections0.05% · $1
Overhead & profit0.12% · $2

Common add-ons

Extras that show up on Boulder quotes but rarely in the headline price.

Post-mitigation testing

$175 – $355

Crawlspace vapor barrier

$1,750 – $5,900

Sump pit sealing

$235 – $945

Continuous radon monitor

$175 – $470

Ways to save in Boulder

Test first with a $20 kit before commissioning a system.
Route the pipe on the least visible elevation to skip cosmetic upgrades.
Collect three written bids on an identical scope — spreads of 20–40% are normal.
Book in the off-season and stay flexible on the start date to save 5–15%.
Bundle nearby work into one mobilization so you only pay setup and travel once.
Ask what the contractor would change to cut 10% without hurting durability.

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More Boulder research

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Radon Mitigation cost near Boulder

Radon Mitigation cost in Denver, CO

$970 – $2,725

Radon Mitigation cost in Aurora, CO

$934 – $2,625

Radon Mitigation cost in Lakewood, CO

$952 – $2,675

Radon Mitigation cost in Arvada, CO

$943 – $2,650

Radon Mitigation cost in Westminster, CO

$943 – $2,650

Radon Mitigation cost in Centennial, CO

$961 – $2,700

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Other project costs in Boulder

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$1,770 – $4,720

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$10,030 – $40,120

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$21,240 – $112,100

HVAC Replacement in Boulder

$6,490 – $21,240

Deck Building in Boulder

$5,192 – $14,160

Window Replacement in Boulder

$531 – $1,770

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