Siding Installation Cost in Fairfax, VA (2026)
Updated October 2026 · Fairfax, VA · index 1.02
How much does new siding cost in Fairfax? For 2,000 sq ft of wall with vinyl siding, homeowners in Fairfax, VA pay about $14,000 on average, and most quotes land between $9,550 and $18,500 — $4.77 to $9.26 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 Fairfax runs 2% above the U.S. average: construction labor in the Fairfax area runs 2% above the national mean, materials 3% above. The same job averages $13,800 nationally and about $13,100 at the Virginia statewide index.
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Siding installation price in Fairfax by siding material
What 2,000 sq ft of wall costs in Fairfax with each siding material, installed:
| Option | Average · range |
|---|---|
| Vinyl sidingdouble-4 lap, factory color$7.01 per sq ft of wall | $14,000$9,550 – $18,500 |
| Fiber-cement sidinglap board, blind-nailed into studs$11.60 per sq ft of wall | $23,200$16,000 – $30,400 |
The least expensive option in Fairfax is vinyl siding, at about $14,000; fiber-cement siding averages $23,200, 1.7 times as much.
Cost to replace siding in Fairfax by size
With vinyl siding, priced for Fairfax, VA:
| Size | Average · range |
|---|---|
| 1,500 sq ft of wall$7.12 per sq ft of wall | $10,700$7,250 – $14,100 |
| 2,000 sq ft of wall$7.01 per sq ft of wall | $14,000$9,550 – $18,500 |
| 2,500 sq ft of wall$6.95 per sq ft of wall | $17,400$11,800 – $22,900 |
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: $6.95 per sq ft of wall for 2,500 sq ft of wall against $7.12 for 1,500 sq ft of wall.
What a siding installation in Fairfax includes
Line by line, the $14,000 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 | $130 – $340 |
| Old siding removed to the sheathing | $810 – $1,900 |
| Dumpster and landfill fees | $300 – $600 |
| House wrap, taped and sealed | $600 – $1,150 |
| Window and door flashing | $540 – $1,400 |
| Starter strip and corners | $680 – $1,550 |
| Siding, supplied and installed | $4,700 – $7,400 |
| Window and door trim | $860 – $1,900 |
| Vents, hoods and mounting blocks | $240 – $640 |
| Caulk and sealant | $200 – $470 |
| Lights, shutters and downspouts reset | $230 – $600 |
| Cleanup and warranty registration | $130 – $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 Fairfax's index of 1.02; permit fees are not scaled.
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What affects siding installation prices in Fairfax
Labor and materials in Fairfax
Construction wages in the Fairfax metro run 4% above the U.S. mean (BLS, May 2025), and specialty-contractor pay in the city's county moves that down by 2%, to 2% above the national mean. Materials in the area's ZIP codes price 3% above the national average. Together they give Fairfax a construction cost index of 1.02.
Where Fairfax sits in Virginia
Fairfax is the 4th most expensive of the 11 Virginia cities in our index, against a statewide index of 0.95. Ashburn is the dearest at 1.08; Roanoke is the least expensive at 0.88.
Against the rest of the country
Of the 306 U.S. cities in JobFlex's index, Fairfax ranks 145th from the most expensive. The job that averages $14,000 here averages $13,800 at the national rate.
Sales tax in Virginia
Virginia's base state sales tax is 5.3%, 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 Fairfax 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 Virginia cities
2,000 sq ft of wall with vinyl siding averages $14,000 in Fairfax; $14,200 in Alexandria, $14,000 in Reston, $14,300 in Arlington.
| City | Average · range |
|---|---|
| Alexandria, VA1% more | $14,200$9,650 – $18,700 |
| Reston, VAsame as Fairfax | $14,000$9,550 – $18,500 |
| Arlington, VA2% more | $14,300$9,700 – $18,900 |
| Ashburn, VA6% more | $14,900$10,100 – $19,600 |
| Woodbridge, VA1% less | $13,900$9,450 – $18,300 |
| Richmond, VA9% less | $12,800$8,700 – $16,900 |
| Virginia Beach, VA10% less | $12,600$8,600 – $16,700 |
| Norfolk, VA8% less | $12,900$8,800 – $17,100 |
siding installation price in Fairfax: questions
How much does new siding cost in Fairfax, VA?
About $14,000 for 2,000 sq ft of wall with vinyl siding, and most Fairfax quotes fall between $9,550 and $18,500. That is 2% above the U.S. average, where the same job averages $13,800.
What is the siding price per square foot in Fairfax?
$4.77 to $9.26 per sq ft of wall, about $7.01 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 Fairfax?
$11,800 to $22,900, about $17,400 on average, with vinyl siding — $6.95 per sq ft of wall.
Do you need a permit for siding installation in Fairfax?
It depends on the city: for re-siding some building departments want a permit and some don't, so check with Fairfax's.
Does the price include sales tax in Virginia?
No. The prices here are before tax; Virginia's base state rate is 5.3%, plus any local rate.
What is the cheapest siding material for siding installation in Fairfax?
Vinyl siding, at about $14,000 for 2,000 sq ft of wall. Fiber-cement siding runs about $23,200.
Other home projects in Fairfax
Siding installation cost in Virginia
- Siding installation cost in Alexandria, VA
- Siding installation cost in Reston, VA
- Siding installation cost in Arlington, VA
- Siding installation cost in Ashburn, VA
- Siding installation cost in Woodbridge, VA
- Siding installation cost in Richmond, VA
- Siding installation cost in Virginia Beach, VA
- Siding installation cost in Norfolk, VA
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 Fairfax's construction cost index of 1.02.
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 Fairfax, each on its own base: RSMeans residential 0.93, Craftsman 1.11. Treat any city figure as about ±5%; a contractor's quote for your house is the number to plan with.
Contractors in Fairfax 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