Full roof replacement with warranties you can actually claim
A replacement is a roof system, not just shingles: deck, underlayment, ice and water barrier, flashing, ventilation and ridge. Our partners quote the whole assembly line by line so you can compare three bids on equal terms.
Warning signs
What to look for
- Roof age past 20 years
- Three-tab asphalt typically lasts 15 to 20 years, architectural shingles 25 to 30. Past that, repairs stop being economical.
- Curling, cupping or bald shingles
- Widespread granule loss and curling edges mean the whole field is at end of life, not a few damaged squares.
- Sagging or spongy deck
- A dipping roof line signals structural moisture damage that repairs cannot address.
- Repeat repairs in the same season
- When you are patching more than once a year, replacement usually costs less over five years than continued repairs.
Scope of work
What's included
- Complete tear-off and disposal of existing roofing layers
- Deck inspection with replacement of any damaged sheathing
- Synthetic underlayment plus ice and water shield at eaves and valleys
- New drip edge, step, valley and chimney flashing
- Intake and ridge ventilation balanced to attic square footage
- Manufacturer-certified installation with material and workmanship warranties
- Permits, final inspection, magnetic nail sweep and full site cleanup
Typical replacement range
$8,000 – $22,000
Asphalt shingle replacements on typical US homes fall in this range. Metal generally runs $15,000 to $40,000, tile and slate higher. Pitch, stories, layer count and local labor rates move the number most.
National averages shown for orientation only. Your itemized quote comes from an independent licensed contractor after an on-site inspection.
Questions
Full Replacement FAQ
How long does a full roof replacement take?
Most single-family asphalt roofs are torn off and reinstalled in one to three days. Steep pitches, multiple layers, metal, tile and slate take longer, and weather can add days.
Can new shingles be installed over the old ones?
Some codes allow a second layer, but it hides deck damage, shortens shingle life through heat retention, and often voids manufacturer warranties. A full tear-off is worth the modest extra cost.
What financing options are available?
Most partner contractors offer financing, and many run promotional zero-interest periods. Home equity lines and insurance proceeds are the other common routes. Compare total cost, not just the monthly payment.
Do I need to leave the house during the work?
No, though the noise is significant. Park away from the house, move vehicles out of the drive, and take framed items off walls under the roof deck.
What warranty should I expect?
Look for a manufacturer material warranty of 30 years or better plus a separate written workmanship warranty from the contractor. Certified installer programs often unlock stronger system-level coverage.