Budget planning guide

Flat Roof Installation cost guide

A transparent starter-scope range for homeowners planning flat roof installation in the U.S.. Review the assumptions, then use the project estimator for your own scope.

Starter-scope range

$11,590–$16,370

Planning midpoint: $13,640

This range uses national starter assumptions before any local adjustment.

What the model includes

Starter scope and assumptions

Adjust quantities for your project

EPDM / TPO Membrane

1,200 sq ft × $5.5

$6,600

Insulation Board

1,200 sq ft × $2.8

$3,360

Flashing & Edge Detail

80 linear ft × $12

$960

Labor (full install)

32 hr × $85

$2,720

This is a budgeting example based on a defined starter scope, not a quote or a live survey of local bids. Actual pricing depends on measurements, site conditions, material choices, permits, contractor availability, and the final scope.

Local guides

Compare starter scopes by city

New York, NYLos Angeles, CAChicago, ILHouston, TXPhoenix, AZPhiladelphia, PASan Antonio, TXSan Diego, CA

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