Budget planning guide

Flat Roof Installation cost in Chicago, IL

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

Starter-scope range

$13,910$19,630

Planning midpoint: $16,360

The planning model applies a higher regional cost factor for this market.

What the model includes

Starter scope and assumptions

Adjust quantities for your project

EPDM / TPO Membrane

1,200 sq ft × $6.6

$7,920

Insulation Board

1,200 sq ft × $3.36

$4,030

Flashing & Edge Detail

80 linear ft × $14.4

$1,150

Labor (full install)

32 hr × $102

$3,260

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.