Basic
$1,779 – $7,116 per project
Prefab steel spiral kit about 5 ft diameter, flat steel treads, round balusters, steel handrail, black paint finish, anchored
Rendering: BuildX
Find a pro to do this
Rendering: BuildX
How Much Does Iron Spiral Staircase Cost in Washington, District of Columbia?
Supply and install one prefab steel or wrought/cast iron spiral staircase kit (single floor rise) with railing, anchored top and bottom.
Iron Spiral Staircase in Washington, District of Columbia typically costs $2,093 to $8,372 per project as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Iron Spiral Staircase in Washington, District of Columbia
$2,093 – $8,372
per projectPrices in Washington are 5.0% higher than the national average for iron spiral staircase.
National average: $2,000 – $8,000 per project
What you get at each price level
Standard
$2,093 – $8,372 per project
Steel spiral kit about 5 ft diameter, steel treads with wood caps, powder-coated finish, steel handrail, anchored
Rendering: BuildX
Find a pro to do thisPremium
$2,616 – $10,465 per project
Cast iron spiral kit about 5 ft diameter with ornamental cast treads and balusters, powder-coated, wood handrail, anchored
Rendering: BuildX
Find a pro to do this
Cost Breakdown in Washington
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $945 – $3,780 | job |
| Labor | labor | $728 – $2,912 | job |
| Supplies & Other | supplies | $252 – $1,008 | job |
| Equipment & Disposal | equipment | $168 – $672 | job |
Prices adjusted for Washington local market conditions.
Iron Spiral Staircase photo examples
Black metal spiral staircase on the exterior of a house
Photo: Missvain · CC BY 4.0 · Source
Find a pro to do this
Cost Factors in Washington, District of Columbia
What Affects Pricing
- Materials ($900.00-$3,600.00 per project)
- Labor ($700.00-$2,800.00 per project)
- Supplies & Other ($240.00-$960.00 per project)
- Equipment & Disposal ($160.00-$640.00 per project)
Local Price Adjustments
Material costs5.0% above avg
Labor costs4.0% above avg
Frequently Asked Questions
How we price this
BuildX Pro researches and reviews the national price range for Iron Spiral Staircase, then adjusts it to your ZIP code for local labor and material costs using the public data below. Last checked Nov 2026.
- Construction wages by metro and rural area, used for the labor adjustment by ZIP code, U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025
- Regional price parities for goods, used for the materials adjustment by ZIP code, U.S. Bureau of Economic Analysis, 2024
Get Free Estimates in Washington
Connect with local iron spiral staircase contractors in Washington for personalized quotes based on your specific project.