How much does ductwork replacement cost in Boulder, CO?

Most Boulder homeowners spend between $4,450 – $10,600 on ductwork replacement, with an average around $7,500. Local labor prices 18% above the national average, so Boulder quotes tend to land at the higher end of national ranges.

Why is ductwork replacement 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 ductwork replacement 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 ductwork replacement cost in 2026?

Most homeowners pay between $3,750 and $9,000, with a national average near $6,375. Small, simple jobs land at the low end; large or premium-material jobs run well above the high end.

What is the cost per linear foot?

Installed pricing usually runs $25.00 to $60.00 per linear foot, 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-linear foot 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/Ductwork Replacement/Boulder, CO

Denver · Colorado

Ductwork Replacement cost in Boulder, CO

Boulder homeowners typically pay $4,450 – $10,600 for ductwork replacement. Local labor and materials price 18% above the national average.

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Boulder average

$7,500

Typical low

$4,450

Typical high

$10,600

Per linear foot

$30 – $71

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

Duct run (linear feet)150 linear feet

Quality / material level

Site access

Removal / prep work

Timing

Estimated project cost

$4,418 – $6,128

Most homeowners pay around $5,273

Compare quality / material level

Cost by material in Boulder

Installed Boulder pricing per linear foot.

Option	Installed cost	Pros	Cons
Flexible duct	$31 – $43	—	—
Sheet metal trunk and flex runs	$43 – $56	—	—
Insulated sheet metal	$56 – $73	—	—
Custom sealed metal with zoning	$73 – $100	—	—

Where the money goes in Boulder

A typical $7,500 Boulder project, broken down by line item.

Labor0.45% · $34
Materials0.38% · $29
Permits & inspections0.05% · $4
Overhead & profit0.12% · $9

Common add-ons

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

Duct sealing (Aeroseal)

$1,200 – $3,550

New returns

$355 – $1,400

Zoning dampers

$1,750 – $5,300

Asbestos duct wrap removal

$1,200 – $5,900

Ways to save in Boulder

Replace ducts while the system is being replaced — one mobilization.
Seal instead of replace when ducts are intact but leaky.
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

Best ductwork replacement companies in Boulder Ductwork Replacement permits in Colorado Ductwork Replacement near me All Colorado prices

Ductwork Replacement cost near Boulder

Ductwork Replacement cost in Denver, CO

$4,111 – $9,792

Ductwork Replacement cost in Aurora, CO

$3,960 – $9,432

Ductwork Replacement cost in Lakewood, CO

$4,035 – $9,612

Ductwork Replacement cost in Arvada, CO

$3,997 – $9,522

Ductwork Replacement cost in Westminster, CO

$3,997 – $9,522

Ductwork Replacement cost in Centennial, CO

$4,073 – $9,702

More Colorado cities

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Other project costs in Boulder

Fence Installation in Boulder

$1,770 – $4,720

Roof Replacement in Boulder

$10,030 – $40,120

Kitchen Remodel in Boulder

$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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