Siding Installation Cost in Boulder, CO (2026)
Updated October 2026 · Boulder, CO · index 1.03
How much does new siding cost in Boulder? For 2,000 sq ft of wall with vinyl siding, homeowners in Boulder, CO pay about $14,200 on average, and most quotes land between $9,650 and $18,700 — $4.82 to $9.35 per sq ft of wall. The price covers removing the old siding, house wrap, flashing at every opening, the new siding with corners and trim, vents and blocks, caulk, the dumpster and cleanup.
The siding installation price in Boulder runs 3% above the U.S. average: construction labor in the Boulder area runs 2% above the national mean, materials 3% above. The same job averages $13,800 nationally and about $13,900 at the Colorado statewide index.
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Siding installation price in Boulder by siding material
What 2,000 sq ft of wall costs in Boulder with each siding material, installed:
| Option | Average · range |
|---|---|
| Vinyl sidingdouble-4 lap, factory color$7.08 per sq ft of wall | $14,200$9,650 – $18,700 |
| Fiber-cement sidinglap board, blind-nailed into studs$11.72 per sq ft of wall | $23,400$16,100 – $30,700 |
The least expensive option in Boulder is vinyl siding, at about $14,200; fiber-cement siding averages $23,400, 1.7 times as much.
Cost to replace siding in Boulder by size
With vinyl siding, priced for Boulder, CO:
| Size | Average · range |
|---|---|
| 1,500 sq ft of wall$7.19 per sq ft of wall | $10,800$7,300 – $14,300 |
| 2,000 sq ft of wall$7.08 per sq ft of wall | $14,200$9,650 – $18,700 |
| 2,500 sq ft of wall$7.02 per sq ft of wall | $17,500$11,900 – $23,100 |
Some costs stay the same whatever the size — measure and material takeoff, site protection, cleanup and warranty registration — so a bigger job costs less per unit: $7.02 per sq ft of wall for 2,500 sq ft of wall against $7.19 for 1,500 sq ft of wall.
What a siding installation in Boulder includes
Line by line, the $14,200 average for 2,000 sq ft of wall breaks down like this: 60% labor, 40% materials and equipment.
| Line | Low – high |
|---|---|
| Measure and material takeoff | $100 – $270 |
| Site protection | $140 – $340 |
| Old siding removed to the sheathing | $810 – $1,900 |
| Dumpster and landfill fees | $310 – $610 |
| House wrap, taped and sealed | $610 – $1,150 |
| Window and door flashing | $540 – $1,400 |
| Starter strip and corners | $690 – $1,550 |
| Siding, supplied and installed | $4,750 – $7,450 |
| Window and door trim | $870 – $1,900 |
| Vents, hoods and mounting blocks | $240 – $650 |
| Caulk and sealant | $200 – $470 |
| Lights, shutters and downspouts reset | $240 – $610 |
| Cleanup and warranty registration | $140 – $340 |
Each line is the price book's U.S. rate for that step, scaled by 0.66 to the installed price published sources give for the whole job (see how these prices are built), times Boulder's index of 1.03; permit fees are not scaled.
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What affects siding installation prices in Boulder
Labor and materials in Boulder
Construction wages in the Boulder area run 2% above the U.S. mean (BLS, May 2025), and materials in its ZIP codes price 3% above the national average. Together they give Boulder a construction cost index of 1.03.
Where Boulder sits in Colorado
Boulder is the 4th most expensive of the 7 Colorado cities in our index, against a statewide index of 1.01. Denver is the dearest at 1.06; Pueblo is the least expensive at 0.96.
Against the rest of the country
Of the 306 U.S. cities in JobFlex's index, Boulder ranks 131st from the most expensive. The job that averages $14,200 here averages $13,800 at the national rate.
Sales tax in Colorado
Colorado's base state sales tax is 2.9%, and cities and counties can add their own. How it applies to a home-improvement contract varies, so ask whether a quote includes it. Prices on this page are before tax.
What a Boulder contractor will ask before quoting
- Stories and access — lift or scaffold?
- Existing siding type and what is under it
- Trim profile and paint scope
Siding installation cost in other Colorado cities
2,000 sq ft of wall with vinyl siding averages $14,200 in Boulder; $14,300 in Lakewood, $13,500 in Colorado Springs, $14,300 in Aurora.
| City | Average · range |
|---|---|
| Lakewood, CO1% more | $14,300$9,700 – $18,900 |
| Colorado Springs, CO5% less | $13,500$9,150 – $17,800 |
| Aurora, CO1% more | $14,300$9,700 – $18,900 |
| Fort Collins, CO4% less | $13,600$9,250 – $18,000 |
| Denver, CO3% more | $14,600$9,900 – $19,200 |
| Pueblo, CO7% less | $13,200$9,000 – $17,400 |
siding installation price in Boulder: questions
How much does new siding cost in Boulder, CO?
About $14,200 for 2,000 sq ft of wall with vinyl siding, and most Boulder quotes fall between $9,650 and $18,700. That is 3% above the U.S. average, where the same job averages $13,800.
What is the siding price per square foot in Boulder?
$4.82 to $9.35 per sq ft of wall, about $7.08 on average with vinyl siding. Smaller jobs cost more per unit, because the fixed costs are spread over less.
How much is 2,500 sq ft of wall in Boulder?
$11,900 to $23,100, about $17,500 on average, with vinyl siding — $7.02 per sq ft of wall.
Do you need a permit for siding installation in Boulder?
It depends on the city: for re-siding some building departments want a permit and some don't, so check with Boulder's.
Does the price include sales tax in Colorado?
No. The prices here are before tax; Colorado's base state rate is 2.9%, plus any local rate.
What is the cheapest siding material for siding installation in Boulder?
Vinyl siding, at about $14,200 for 2,000 sq ft of wall. Fiber-cement siding runs about $23,400.
Other home projects in Boulder
Siding installation cost in Colorado
How these prices are built
Every price on this page comes from JobFlex's contractor price book: what a homeowner pays a licensed contractor for each step of the job, as a U.S. national average per unit, with the contractor's overhead and profit included and sales tax left out. The siding installation is priced step by step, then multiplied by Boulder's construction cost index of 1.03.
Where the price book's steps for an option add up to more than 20% over the installed price a published source gives for the whole job, every step but a permit fee is scaled down to the middle of that range: vinyl siding × 0.66 (HomeGuide/This Old House 2026 plus Modernize/Dropcurb 2026: $4.25–$9.50 per sq ft of wall); fiber-cement siding × 0.82 (HomeGuide 2026 plus Modernize/Dropcurb 2026: $6.25–$16.50 per sq ft of wall).
The index weighs local construction wages (BLS Occupational Employment and Wage Statistics, May 2025) at 60% and the area's material prices (Craftsman ZIP-area factors) at 40%. Published indices for Boulder, each on its own base: RSMeans residential 0.87, HUD 0.95, Craftsman 1.05. Treat any city figure as about ±5%; a contractor's quote for your house is the number to plan with.
Contractors in Boulder build quotes like these with JobFlex's Smart Proposal estimator.
- HomeGuide 2026: fiber-cement siding $6-$15/sqft installed, labor $4-$9/sqft
- HomeGuide/This Old House 2026: vinyl siding $4-$8/sqft installed
- Modernize/Dropcurb 2026: siding removal $0.25-$1.50/sqft