Roof replacement cost: per-square pricing by material
$6,500–$13,000
For a typical 2,000 sq ft home with architectural shingles, most US homeowners report paying between those amounts — about $250–$560 per square (100 sq ft) for asphalt. Material choice, pitch, and deck repairs move the number most.
Roofers price by the “square” — a 10×10 ft patch of roof, 100 sq ft. Learn that one word and your quotes become decipherable: total cost is roughly (squares × per-square rate) + tear-off + deck repairs + extras like ventilation and flashing. The per-square rate is where material choice dominates; everything else is the condition of your specific house.
What drives the cost: labor vs materials vs permits
Materials. Shingles themselves are often 30–45% of a quote. Architectural (dimensional) shingles cost meaningfully more than 3-tab but last longer and carry better wind ratings. Underlayment, ice-and-water shield in valleys and eaves, synthetic decking felt, and metal flashing all add up to several hundred dollars on a typical house.
Labor. Usually the largest share. Pitch is the multiplier: a steep, multi-story, many-hip roof can run 30–60% more labor than a simple low-slope ranch. Tear-off of existing layers adds roughly $60–$120 per square, and dumpster/disposal is typically a few hundred dollars.
Decking surprises. Quotes always assume a sound deck. Rotten plywood replaced after tear-off is priced per sheet — commonly $60–$120 per sheet installed. Ask every bidder what their per-sheet deck repair rate is before you compare totals.
Permits and overhead. Roofing permits commonly run $100–$400 depending on locality. Regional labor markets and post-storm demand can swing everything by double digits.
Cost per square by material
| Material | Per square (installed) | Typical 20-25 sq house | Expected life |
|---|---|---|---|
| 3-tab asphalt | $250–$420 | $5,500–$9,500 | ~15-20 years |
| Architectural asphalt | $320–$560 | $7,000–$13,000 | ~25-30 years |
| Standing-seam metal | $550–$950 | $12,000–$22,000 | 40-70 years |
| Wood shake | $600–$1,100 | $13,000–$26,000 | 20-40 years; restricted in some fire zones |
| Concrete / clay tile | $800–$1,700 | $17,000–$38,000 | 50+ years; may need structural review |
| Slate | $1,500–$3,200 | $32,000–$75,000 | 75-150 years |
DIY vs hiring a pro
The honest framing: re-shingling your own simple, low-pitch, single-story garage or shed is a realistic weekend-series project. On the house, the deciding factor isn't skill with a nail gun — it's fall risk and water. A roofer's insurance exists precisely because falls are common and catastrophic; your policy may not cover you working a roof. Mistaken flashing at valleys and chimneys doesn't leak for months, and by then the installer (you) is gone and the interior damage is expensive.
Tooling reality: nail gun + compressor, scaffolding, tear-off tools, and a dumpster rental run $1,000–$2,500 before the first bundle, eating much of the typical $2,000–$5,000 labor saving. Manufacturer wind warranties on architectural shingles often require certified installers.
Difficulty rating: DIY only for small accessory structures; pro for living-space roofs.
Repair vs replace: where the threshold sits
- Repair makes sense for a single leak source (flashing, a boot jack, storm-displaced shingles) on a roof under ~15 years old. Targeted repairs commonly run $250–$900.
- Replace when: the roof is past ~80% of its material life, leaks show up in multiple unrelated areas, the deck is soft in several places, or you're already tearing off for insurance/sale reasons.
- The stacking test: if you already have two layers, almost any significant problem means full replacement — a third layer is off the table in most codes.
On storm damage, get an independent roofer's assessment before signing anything tied to an insurance claim — see the red flags below.
Hiring a pro: what a fair quote includes
A complete roofing quote lists: number of squares measured (not guessed from house size), tear-off layers, underlayment and ice-and-water shield spec, shingle brand/line/warranty, flashing and vent work, dumpster and disposal, permit responsibility, deck-repair per-sheet rate, labor warranty (2–10 years is common), and proof of general liability and workers' comp insurance.
Red flags: storm-chasing out-of-town crews knocking after hail events, offers to “handle your deductible,” large deposits before permits, no physical address or license number, and pressure to sign the same day.
Frequently asked questions
What does a roof cost per square?
A roofing square is 100 sq ft. Most US homeowners report roughly $250–$420 per square for 3-tab asphalt and $320–$560 for architectural, installed. Metal, tile, and slate climb steeply from there.
How much to replace the roof on a 2,000 sq ft house?
Plan around $6,500–$13,000 for asphalt on a typical 20–25 square roof. Pitch, stories, and deck repairs move it up.
Can a roof be re-shingled over an existing layer?
Codes commonly allow one overlay, which saves tear-off cost — but it hides deck problems and most contractors still recommend full tear-off for a long-lived result.
How long does a roof replacement take?
Most asphalt re-roofs take 1–3 days; complex or premium-material roofs can take one to two weeks.
Plug in your roof size and material: estimate your roof cost in 10 seconds.
State-specific costs vary: state guides for the D.C.-metro region — Maryland, Washington, D.C., and Virginia.
Already holding bids that don't match? Convert each one to cost per square and walk the five gap-explaining line items in our roof quote overcharge checklist before you call anyone back — or skip the arithmetic and get an instant LOW/FAIR/HIGH sanity verdict in the roof quote checker.