Basic
$3.72 – $8.37 per sq ft
Three-ply built-up roof with fiberglass ply sheets in hot asphalt, flood coat with gravel, new gravel stop
Install a new multi-ply built-up (tar and gravel) flat roof over an existing deck, per square foot, tear-off extra.
Built Up Roof in Boston, Massachusetts typically costs $4.38 to $9.85 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Boston are 14.0% higher than the national average for built up roof.
National average: $4 – $9 per sq ft
$3.72 – $8.37 per sq ft
Three-ply built-up roof with fiberglass ply sheets in hot asphalt, flood coat with gravel, new gravel stop
$4.38 – $9.85 per sq ft
Four-ply fiberglass felts in hot asphalt over a base sheet, flood coat with embedded gravel, new gravel stop and flashings
$5.47 – $12 per sq ft
Four plies plus base sheet over new cover board, flood coat and gravel, new edge metal, re-flashed curbs and drains
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $1.80 – $4.05 | sq ft |
| Labor | labor | $1.78 – $4 | sq ft |
| Supplies & Other | supplies | $0.48 – $1.08 | sq ft |
| Equipment & Disposal | equipment | $0.32 – $0.72 | sq ft |
Labor costs in Boston run proportionally higher than materials, which may favor material-heavy solutions.
Connect with local built up roof contractors in Boston for personalized quotes based on your specific project.