Basic
$1,667 – $6,667 per project
Prefab steel spiral kit about 5 ft diameter, flat steel treads, round balusters, steel handrail, black paint finish, anchored
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How Much Does Iron Spiral Staircase Cost in Portland, Maine?
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 Portland, Maine typically costs $1,961 to $7,844 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 Portland, Maine
$1,961 – $7,844
per projectPrices in Portland are 1.0% lower than the national average for iron spiral staircase.
National average: $2,000 – $8,000 per project
What you get at each price level
Standard
$1,961 – $7,844 per project
Steel spiral kit about 5 ft diameter, steel treads with wood caps, powder-coated finish, steel handrail, anchored
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Find a pro to do thisPremium
$2,451 – $9,805 per project
Cast iron spiral kit about 5 ft diameter with ornamental cast treads and balusters, powder-coated, wood handrail, anchored
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Cost Breakdown in Portland
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $873 – $3,492 | job |
| Labor | labor | $700 – $2,800 | job |
| Supplies & Other | supplies | $233 – $931 | job |
| Equipment & Disposal | equipment | $155 – $621 | job |
Prices adjusted for Portland 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
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Cost Factors in Portland, Maine
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 costs3.0% below avg
Labor costsAt national average
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 Portland
Connect with local iron spiral staircase contractors in Portland for personalized quotes based on your specific project.