Nampa, ID · 2026 cost guide
How much does a new roof cost in Nampa?
In Nampa, a new roof costs about $8,500–$20,000 in 2026 for a 1,800 sq ft (about 20-square) asphalt-shingle roof, tear-off included — roughly $423.23–$987.53 per square (100 sq ft). That’s in line with the Idaho average.
Estimate your Nampa project with the Roofing Square Calculator →
Nampa cost breakdown
| Nampa typical range | $8,500–$20,000 |
| Nampa per square (100 sq ft) | $423.23–$987.53 |
| Idaho state average | $8,600–$20,000 |
| Versus Idaho average | in line with average |
What’s different about Nampa
Nampa sits in the Boise metro with a slightly lower cost of living, sharing the region's tight labor market and cold-winter construction needs.
- Snow load and ice dams call for ice-and-water shield and sturdier decking, pushing roof cost up.
How the cost is built
Roof cost scales with roof area (measured in 100 sq ft 'squares'), pitch, and material — asphalt shingles are the budget choice, while metal, tile, and slate run two to four times more. Steep or complex rooflines, multiple layers to tear off, and new decking or flashing all add to the total.
Frequently asked questions
How much does a new roof cost in Nampa?
In Nampa, a new roof costs about $8,500 to $20,000 in 2026 for a 1,800 sq ft (about 20-square) asphalt-shingle roof, tear-off included — roughly 423.23–987.53 per square (100 sq ft). That's in line with the Idaho average, reflecting local labor and permit costs.
What affects the cost of a new roof in Nampa?
Nampa sits in the Boise metro with a slightly lower cost of living, sharing the region's tight labor market and cold-winter construction needs. Snow load and ice dams call for ice-and-water shield and sturdier decking, pushing roof cost up.
How can I get an accurate roof replacement estimate in Nampa?
Use the free Roofing Square Calculator to plug in your real measurements, then collect two or three local Nampa quotes to compare. Prices vary by neighborhood, access, and project complexity.
Roof replacement cost in other Idaho metros
Keep planning
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Open calculator →The Nampa figure scales the Idaho cost range by a local metro index, then adjusts for the city’s labor market and climate. A 2026 planning estimate, not a quote — get local bids. See our methodology.