Roof Replacement Cost Calculator
Roof replacement costs depend on roof area, pitch, access, tear-off layers, valleys, roof penetrations, shingle tier, and what is included beyond field shingles.
Project snapshot
Typical schedule
Many asphalt roof replacements take one to several days on site, but scheduling, weather, roof complexity, repairs, and inspections can extend the total timeline.
Disruption level
Medium. Interior rooms usually remain usable, but expect noise, driveway/material access, falling debris protection, and cleanup.
Pricing reality
Roof pricing is driven by roof area, pitch, access, tear-off layers, flashing, ventilation, sheathing repairs, and accessory details — not only shingles.
What usually moves the price
Common cost drivers
- roof pitch
- tear-off layers
- roof complexity
- shingle tier
- sheathing repairs
- access
Usually included
- field shingles
- underlayment allowance
- tear-off if selected
- basic flashing allowance
- ridge/vent allowance
- disposal allowance
Often excluded or conditional
- major structural roof repair
- chimney rebuilds
- skylight replacement unless selected by contractor
- solar removal
- gutters
Build your cost range
Start with the project type and quick-start preset. The default estimate is usable right away; the extra controls are there when you know more detail.
Questions to ask contractors
- What underlayment and ice barrier are included?
- Are ridge cap, starter, and vents included?
- How is rotten sheathing priced?
- What flashing is being replaced?
How to compare quotes for this project
A useful quote should make the included scope obvious. The goal is not to scare anyone away from the project — it is to avoid comparing one complete quote against one quote that leaves important items vague.
Double-check included
- tear-off layers
- ice/water shield locations
- underlayment type
- drip edge, starter, and ridge cap
- flashing and pipe boots
- ridge/attic ventilation
- disposal and cleanup
- sheathing repair price per sheet
Clarify before signing
- Is rotten sheathing included or priced per sheet?
- Which flashing is replaced and which is reused?
- Are chimney, skylight, and wall flashing included?
- Are gutters included or excluded?
- What workmanship and manufacturer warranties apply?
Ways to save without cutting corners
- Use a standard architectural shingle instead of premium designer shingles.
- Avoid rush scheduling if the roof is not leaking.
- Combine related exterior work only when it reduces mobilization.
- Do not save money by skipping flashing, underlayment, ventilation, or proper cleanup.
- Keep color/product choices in common stock lines when possible.
Before you request quotes
Better quote requests usually get better quotes. These items help contractors understand the real scope without needing a long phone call first.
Have this ready
- Take photos of all roof sides if safely possible from the ground.
- Note leaks, stains, ice dam history, ventilation issues, and known problem areas.
- Ask whether drip edge, starter, ridge cap, pipe boots, flashing, and ventilation are included.
- Ask the price per sheet for rotten sheathing replacement.
- Confirm cleanup, magnet sweep, and warranty details.
Common budget surprises
- rotten sheathing discovered after tear-off
- flashing around chimneys, skylights, walls, and valleys
- ventilation issues
- multiple roof layers
- gutter, fascia, or trim damage discovered during work
Helpful prep before the visit
- Move vehicles from the driveway.
- Protect attic or garage items under active leak areas.
- Point out landscaping, septic, AC units, and other areas needing protection.
- Clear access for material delivery and dumpster placement.
Contractor reality check
- A roof quote should list the accessories, not only shingles. Starter, ridge cap, drip edge, underlayment, flashing, pipe boots, ventilation, and cleanup all matter.
- Sheathing repair pricing should be clear before tear-off starts.
Related sizing calculators
Use these to check the material or equipment quantities behind the estimate.
Shingle Bundles
Estimate roofing shingle bundles from building footprint, roof pitch, overhang, bundle coverage, and waste allowance.
Open calculator → Geometry BasicsRoof Pitch
Calculate roof pitch, slope angle, and slope factor from rise and run.
Open calculator → Materials & ProjectsRoofing Underlayment
Estimate roofing underlayment rolls from building footprint, roof pitch, roll coverage, overlap, and waste.
Open calculator →