Cost Guides / Flat Roof Replacement
How Much Should Flat Roof Replacement Cost?
Fair price range (2026)
Depends on scope, materials, and local labor rates.
Get the exact fair range for your specific job — check your quote free below.
Why quotes vary
- • Square count: crews price per 100 sqft of roof area — verify their measurement against your home's footprint × pitch factor
- • Tear-off layers: each existing layer adds $100–$175/square in labor and disposal
- • Pitch and stories: steep or 2+ story roofs carry a legitimate 10–25% access premium
- • Decking: rotten sheets are a real cost, but open-ended 'decking allowances' are where surprise charges live — cap it in writing
- • Material grade: 3-tab vs architectural vs designer shingles can swing materials cost 2x
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Related cost guides
Ranges are national estimates for typical projects. Always get a written estimate.