💧 Roof Leak Repair Cost Estimator
Estimate service call, labor, helper, materials, flashing, disposal, moisture dryout, interior patch, travel, permits, tax and OH&P.
Planning tool only — not a formal bid.
Results will appear here
⚠️ Planning estimate only — confirm on-site conditions & code with licensed roofers. Moisture and interior repair costs can escalate quickly.
💡 Leak repair costs vary by access, roof type, and severity.
✅ Best Practices:
• Tarp or temporary dry-in if more rain is forecast.
• Use step flashing where roof meets vertical walls; counterflashing for chimneys.
• Continuous valley flashing improves water shedding on high-flow areas.
• Overlap flashing pieces 2–4 inches; seal all joints with approved roof cement.
• Nail at top edge of flashing to avoid leak paths.
• Use corrosion-resistant metals (galvanized, aluminum, copper); match to nearby materials.
• Inspect attic & sheathing for hidden damage; replace compromised decking.
• Document with photos for insurance and future maintenance.
• Confirm local code for permits and underlayment/ice-shield requirements.
• On flat roofs, use compatible membrane patches (TPO/EPDM/PVC) and primers.
❓ FAQ — Leak Repair Basics
Q: What drives leak repair cost the most?
A: Access difficulty, roof type, severity, after-hours/emergency multipliers, and trim/flashing complexity.
Q: Does this include full reroof?
A: No. This is a repair estimator only (visit, labor, materials, trim, extras, OH&P, tax).
Q: Why is after-hours more expensive?
A: Overtime labor, limited supplier access, and urgent mobilization increase costs.
Q: What about interior damage?
A: Use the “Interior Patch Needed” toggle and “Moisture Dryout” days to include allowances.