Roof Replacement Calculator 

Your roof

Your estimate

Full replacement installed
Per square foot of roof
Per square (100 sq ft)
Your roof
Estimated roof area
Roofing squares
Tear-off share

Includes tear-off, underlayment, ice/water shield at eaves, flashing, ridge vent, and disposal.

How much does a roof replacement cost in 2026?

A full roof replacement costs $9,000 to $22,000 for most single-family homes in mid-2026, or $4.50–$8.00 per square foot for the most common job — architectural asphalt shingles with single-layer tear-off. That translates to $450–$800 per “square” (roofer language for 100 sq ft). A typical 1,500 sq ft ranch carries roughly 17–19 squares of roof once pitch is counted, landing the average bid near $11,000–$14,000. Metal, tile, and steep or complex roofs push totals to $20,000–$40,000+.

📷 Your photo here — alt: “Roofing crew installing architectural asphalt shingles on a ranch home” (roof-replacement-cost-2026.jpg)

Roof replacement cost by home size (architectural shingles)

Home footprintApprox. roof areaSquaresInstalled (2026)
1,000 sq ft~1,160 sq ft12$6,500 – $9,500
1,500 sq ft~1,740 sq ft18$9,500 – $14,000
2,000 sq ft~2,320 sq ft24$12,500 – $18,500
2,500 sq ft~2,900 sq ft29$15,500 – $23,000
3,000 sq ft~3,480 sq ft35$18,500 – $28,000

Where a roofing bid goes

WHAT YOU PAY FOR IN A ROOF REPLACEMENT LABOR & CREW · 55% MATERIALS · 30% 10% LABOR — tear-off, deck repair, installation; roofing is the most labor-weighted trade we track MATERIALS — shingles, underlayment, ice & water shield, drip edge, ridge cap TEAR-OFF & DISPOSAL — dumpster, haul-away (10%) · FLASHING, VENTS, PERMIT (5%) Architectural shingle job, national average · ProjectCosted survey
Labor is over half of every roof — which is why identical shingles bid 30%+ apart between crews.

What moves your price

Pitch: anything above 7/12 requires harnesses, staging, and slower work — expect +15–30%. Complexity: valleys, dormers, and skylights each add cut-work and flashing; a cut-up roof costs 15–30% more per square than a simple gable. Layers: tearing off two layers of old shingles nearly doubles removal cost, and code caps most roofs at two layers total — a second-layer “overlay” quote is cheaper now but costs you the full tear-off later. Decking surprises: budget a contingency of $75–$150 per sheet of plywood; rot isn’t visible until tear-off. Season: late fall bids often run 5–15% under spring-storm season in most states.

Repair or replace?

The 20% rule serves well: if damage covers under ~20% of the roof and the shingles are less than 12–15 years old, repair ($400–$2,000) wins. Past that age, matching discontinued shingles gets hard, and repairs on a dying roof are money down the drain — most asphalt roofs are done at 20–25 years regardless of what any single section looks like. One more path worth checking first: if damage came from a storm, your homeowner’s insurance may cover replacement minus deductible — have a roofer document it before filing, and be wary of door-knockers after hailstorms who “find” damage everywhere.

Frequently asked questions

How much is a new roof on a 1,500 sq ft house?
$9,500–$14,000 with architectural asphalt shingles at 2026 prices, including tear-off. Standing-seam metal on the same house: $18,000–$28,000.
How long does a roof replacement take?
1–3 days for asphalt on an average home with a full crew; metal and tile take 3–7 days.
Can I roof over old shingles instead of tearing off?
Often legal for one overlay, and it saves $1–$2/sq ft now — but it shortens the new roof’s life, voids some warranties, and doubles your future tear-off bill. Most pros advise against it.
What time of year is cheapest for a new roof?
Late fall and winter in most markets — crews are slower and bids drop 5–15%. Avoid quoting right after hailstorms, when demand spikes prices.
Does a new roof add home value?
Strongly — it’s a top-5 resale item. Expect to recoup 55–70% directly, plus faster sales and cleaner inspections.

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