Roof Repair Cost Calculator
Estimate localized roof repairs—shingle patches or flashing work—by repair area, then add emergency tarp or chimney flashing when needed.
Your project
Repair area (sq ft)iRepair area (sq ft) Measure the damaged zone the crew will open and rebuild—not the whole roof. Small leaks often touch 50–200 sq ft once underlayment is included. | |
|---|---|
Repair typeiRepair type Shingle patch covers localized asphalt repair. Flashing repair targets valleys, walls, and penetrations at a higher labor rate. | |
Your stateiYour state Scales U.S.-average labor and material midpoints for typical state-level pricing. It is not an on-site bid. |
How to use this calculator
- Enter the square footage of the repair zone.
- Choose shingle patch or flashing repair pricing.
- Add emergency tarp or chimney flashing if needed.
- Select your state and review the total band.
Results explained
Repair type × damaged area is the base. Emergency tarp and chimney flashing are flat add-ons, then state-scaled.
Quick reference: roof repair midpoints
Installed U.S.-average midpoints before the selected state adjustment.
| Scope | Midpoint |
|---|---|
| Shingle patch | $18/sq ft |
| Flashing repair | $28/sq ft |
| Emergency tarp | $450 flat |
| Chimney flashing package | $900 flat |
Rates are planning midpoints; difficult access, repairs, and minimum job charges can shift quotes.
How the estimate is built
Total ≈ (repair sq ft × repair $/sq ft) + selected flat add-ons, then × state multiplier. Full reroofs belong on the roof cost calculator instead.
Example scenario
A 120 sq ft shingle patch with an emergency tarp is about $2,610 at U.S. average ($18 × 120 + $450).
FAQ
When should I replace instead of repair?
Widespread granule loss, multiple leak zones, or a roof near end of life usually favor replacement. Use repairs for isolated storm or flashing failures.
Why is per-square-foot repair higher than new roofing?
Small mobilizations, matching materials, and careful tie-ins cost more per foot than a full tear-off crew.
Does insurance change this number?
Possibly. Deductibles, depreciation, and claim scope are separate from this planning midpoint.