Siding Installation Cost in Helena, MT (2026)
Updated October 2026 · Helena, MT · index 0.98
How much does new siding cost in Helena? For 2,000 sq ft of wall with vinyl siding, homeowners in Helena, MT pay about $13,500 on average, and most quotes land between $9,150 and $17,800 — $4.58 to $8.89 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 Helena runs 2% below the U.S. average: construction labor in the Helena area runs 3% below the national mean, materials sit at the national level. The same job averages $13,800 nationally and about $13,500 at the Montana statewide index.
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Siding installation price in Helena by siding material
What 2,000 sq ft of wall costs in Helena with each siding material, installed:
| Option | Average · range |
|---|---|
| Vinyl sidingdouble-4 lap, factory color$6.74 per sq ft of wall | $13,500$9,150 – $17,800 |
| Fiber-cement sidinglap board, blind-nailed into studs$11.15 per sq ft of wall | $22,300$15,400 – $29,200 |
The least expensive option in Helena is vinyl siding, at about $13,500; fiber-cement siding averages $22,300, 1.7 times as much.
Cost to replace siding in Helena by size
With vinyl siding, priced for Helena, MT:
| Size | Average · range |
|---|---|
| 1,500 sq ft of wall$6.84 per sq ft of wall | $10,300$6,950 – $13,600 |
| 2,000 sq ft of wall$6.74 per sq ft of wall | $13,500$9,150 – $17,800 |
| 2,500 sq ft of wall$6.67 per sq ft of wall | $16,700$11,400 – $22,000 |
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: $6.67 per sq ft of wall for 2,500 sq ft of wall against $6.84 for 1,500 sq ft of wall.
What a siding installation in Helena includes
Line by line, the $13,500 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 – $260 |
| Site protection | $130 – $320 |
| Old siding removed to the sheathing | $770 – $1,800 |
| Dumpster and landfill fees | $290 – $580 |
| House wrap, taped and sealed | $580 – $1,100 |
| Window and door flashing | $520 – $1,350 |
| Starter strip and corners | $650 – $1,500 |
| Siding, supplied and installed | $4,500 – $7,100 |
| Window and door trim | $830 – $1,800 |
| Vents, hoods and mounting blocks | $230 – $620 |
| Caulk and sealant | $190 – $450 |
| Lights, shutters and downspouts reset | $230 – $580 |
| Cleanup and warranty registration | $130 – $320 |
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 Helena's index of 0.98; permit fees are not scaled.
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What affects siding installation prices in Helena
Labor and materials in Helena
Construction wages in the Helena area run 3% below the U.S. mean (BLS, May 2025), and materials in its ZIP codes price right at the national average. Together they give Helena a construction cost index of 0.98.
Where Helena sits in Montana
Helena is the 3rd most expensive of the 5 Montana cities in our index, against a statewide index of 0.98. Bozeman is the dearest at 1.03; Great Falls is the least expensive at 0.97.
Against the rest of the country
Of the 306 U.S. cities in JobFlex's index, Helena ranks 175th from the most expensive. The job that averages $13,500 here averages $13,800 at the national rate.
Sales tax in Montana
Montana has no state sales tax. Prices on this page are before any tax.
What a Helena 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 Montana cities
2,000 sq ft of wall with vinyl siding averages $13,500 in Helena; $13,300 in Great Falls, $14,200 in Bozeman, $13,500 in Missoula.
| City | Average · range |
|---|---|
| Great Falls, MT1% less | $13,300$9,050 – $17,600 |
| Bozeman, MT5% more | $14,200$9,650 – $18,700 |
| Missoula, MTsame as Helena | $13,500$9,150 – $17,800 |
| Billings, MT2% more | $13,800$9,350 – $18,200 |
siding installation price in Helena: questions
How much does new siding cost in Helena, MT?
About $13,500 for 2,000 sq ft of wall with vinyl siding, and most Helena quotes fall between $9,150 and $17,800. That is 2% below the U.S. average, where the same job averages $13,800.
What is the siding price per square foot in Helena?
$4.58 to $8.89 per sq ft of wall, about $6.74 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 Helena?
$11,400 to $22,000, about $16,700 on average, with vinyl siding — $6.67 per sq ft of wall.
Do you need a permit for siding installation in Helena?
It depends on the city: for re-siding some building departments want a permit and some don't, so check with Helena's.
Does the price include sales tax in Montana?
No tax is included, and Montana has no state sales tax.
What is the cheapest siding material for siding installation in Helena?
Vinyl siding, at about $13,500 for 2,000 sq ft of wall. Fiber-cement siding runs about $22,300.
Other home projects in Helena
Siding installation cost in Montana
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 Helena's construction cost index of 0.98.
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 Helena, each on its own base: HUD 0.94, Craftsman 0.95. Treat any city figure as about ±5%; a contractor's quote for your house is the number to plan with.
Contractors in Helena 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