A roof overlay usually costs $3.50-$6.50 per square foot, while removing the old shingles and installing a new roof typically costs $5-$9.50 per square foot. Roof size, shingle choice, slope, disposal, and hidden deck damage can shift the quote considerably.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Overlay, per sq. ft. | $3.50 | $5.00 | $6.50 | Installed over one existing shingle layer |
| Tear-off and reroof, per sq. ft. | $5.00 | $7.25 | $9.50 | Includes removal and standard asphalt shingles |
| Overlay, 2,000 sq. ft. | $7,000 | $10,000 | $13,000 | Before major repairs or complex roof details |
| Tear-off and reroof, 2,000 sq. ft. | $10,000 | $14,500 | $19,000 | Price depends on access, pitch, and disposal |
Assumptions: U.S. asphalt-shingle roof, one existing layer for an overlay, standard access, and no extensive structural repairs.
Typical asphalt roof prices for overlay and tear-off
Roofing estimates commonly use a “square,” equal to 100 square feet. That puts an overlay at roughly $350-$650 per square and a tear-off with replacement at $500-$950 per square. These installed ranges generally cover standard architectural or three-tab asphalt shingles, underlayment, and routine installation.
For a 2,000-square-foot roof, budgeting about $10,000 for an overlay or $14,500 for a tear-off is a useful starting point. Actual roof surface area—not the home’s interior floor area—determines the total. A steep or cut-up roof can have more surface area and take longer to cover.
How shingles, removal, and labor appear in the quote
Compare line items rather than relying only on a contractor’s total. A low quote may omit disposal, flashing, starter shingles, or replacement of damaged decking. The table shows common ranges for an asphalt reroof; costs can vary by region and roof layout.
| Quote component | Overlay range | Tear-off range | Typical basis |
|---|---|---|---|
| Shingles and underlayment | $2.25-$4.25 per sq. ft. | $2.25-$4.25 per sq. ft. | Standard asphalt materials |
| Installation labor | $1.25-$2.50 per sq. ft. | $1.50-$3.00 per sq. ft. | Higher for steep or complex roofs |
| Old-roof removal | $0 | $1.00-$2.50 per sq. ft. | One layer, including basic cleanup |
| Disposal and haul-away | $0-$300 | $300-$900 | Dumpster, weight, and local fees |
| Flashing and accessories | $200-$900 | $300-$1,200 | Valleys, vents, drip edge, and flashing |
Ask whether labor, haul-away, flashing, and cleanup are included before comparing bids.
Deck damage and roof pitch can change the price
An overlay generally works only when the existing roof has one layer of shingles and the deck is sound. A second layer may be prohibited by local code or manufacturer requirements. If the roof already has two layers, another overlay is typically not an option, and removing the existing materials adds cost.
Replacing damaged plywood commonly adds about $75-$150 per sheet installed, depending on thickness and local labor. A roof steeper than 6:12, multiple valleys, skylights, or many penetrations can increase labor by 10%-30%. Deck condition and roof geometry can erase much of an overlay’s initial savings.
How long crews spend installing each roof type
A typical crew of four to six roofers may finish a straightforward 2,000-square-foot overlay in one day. A tear-off and replacement often takes one to two days, with additional time for steep slopes, weather delays, or deck repairs. Local labor rates commonly fall around $50-$100 per worker-hour, though contractors usually quote the job rather than bill hourly.
Removing shingles creates more handling and cleanup work, but it also lets the crew inspect the deck and replace underlayment properly. Ask for the estimated crew size, workdays, and plan for rain protection. Those details help explain labor differences between quotes.
Regional labor rates shift the installed roof total
Prices in high-cost metro areas and coastal markets may run 10%-25% above national midrange estimates. Rural areas can be 5%-15% lower, but long travel distances or limited contractor availability may offset the difference. Storm-damaged markets can also see temporary price increases when crews are booked and material supply is tight.
These are broad comparisons, not guaranteed local rates. Obtain itemized quotes from contractors who work in the same area and specify the same shingle grade and removal scope. Compare equivalent specifications, not just the lowest total.
When removal costs more but may prevent repeat work
An overlay is usually cheaper because it avoids tear-off and disposal. It can be a reasonable short-term option when the existing roof has one layer, lies flat, and has no leaks or deck concerns. However, installing over old shingles can conceal deterioration, add roof weight, and make future removal more involved.
A tear-off is often the more complete repair when shingles are curled, the roof has leaks, or the deck needs inspection. If water damage is extensive, add a contingency of roughly $500-$2,000 until the contractor checks beneath the shingles. The less expensive installation is not always the lower-cost choice over the roof’s remaining life.
Reduce the reroof bill without skipping essential work
Request at least three written bids with the same roof measurements, shingle product, underlayment, flashing scope, and disposal terms. Confirm whether the contractor charges extra per sheet of damaged decking and how that work is approved. A clear allowance prevents surprise additions while preserving necessary repairs.
Standard asphalt shingles generally cost less than premium impact-resistant or designer products. Avoid paying for an overlay if local rules, existing layers, or poor roof condition make tear-off necessary. Scheduling outside peak storm-repair demand may improve availability, but weather and contractor workload vary locally. Control upgrades and scope, not the inspection or repairs needed for a sound roof.