Roof Replacement Cost Guide: Labor, Tear-Off, Pitch & Permits

The five cost drivers, in order of impact

1. Material — $3.50–$18/sqft installed depending on what you pick (see the material comparison).
2. Labor — 40–65% of most quotes; varies by material and region.
3. Tear-off & disposal — $1–$2/sqft per layer of old roofing.
4. Pitch & height — steep or tall roofs cost more in both area and labor.
5. Permits & extras — $150–$500, plus flashing, skylights, and decking repairs.

Pro labor rates (2026)

Labor is the least shoppable line item — it's set by your market, the material's difficulty, and how hard your roof is to work on. These are national installed-labor ranges per square foot of roof surface:

Material	Labor / sqft	Why
3-tab asphalt	$2.00–$4.00	Fastest install; any crew can do it
Architectural asphalt	$2.50–$4.50	Slightly slower; still commodity labor
Standing-seam metal	$3.50–$6.50	Specialized tools and seaming skill
Wood shake	$3.50–$6.00	Hand-placed courses, slower (industry estimate)
Clay / concrete tile	$4.50–$8.00	Heavy, fragile, flashing-intensive

Ranges from Bhumi Calculator 2026 and Angi 2026; wood labor labeled an industry estimate. High-cost metros run 20–40% above these ranges.

Tear-off: the line item people forget to budget

Removing the old roof isn't free, and it's not optional (beyond one overlay). Budget it like its own project:

• Tear-off labor: $1–$2 per sqft per layer — a second layer doubles it. Our calculator defaults to $1.50.
• Disposal: dumpster and dump fees, typically $300–$600 total for a house.
• Decking repair: rotted plywood/OSB found at tear-off runs ~$85 per sheet installed (industry estimate) — ask how the bid handles it, because "we'll see" becomes a change order.
• Overlay option: most codes allow one new layer over one old layer, saving the full tear-off cost — but you can't inspect decking, warranties often shorten, and the extra weight adds up.

Tear-off and disposal ranges: martinandsons-stl 2026, theflhomepros 2026.

Pitch multipliers: geometry plus danger pay

Pitch hits you twice — more surface area and slower, harness-tethered labor:

Pitch	Surface multiplier	Labor surcharge	On a 2,000-sqft footprint
Low — 3/12	× 1.031	none	2,062 sqft of roof
Moderate — 6/12	× 1.118	none	2,236 sqft of roof
Steep — 9/12	× 1.250	+15% (estimate)	2,500 sqft, pricier labor
Very steep — 12/12	× 1.414	+25% (estimate)	2,828 sqft — 41% more than the footprint

Surface multipliers are exact geometry: √(1 + (rise/12)²). Labor surcharges are industry rules of thumb — your roofer's bid may differ; treat them as estimates.

Height (stories) matters too

Every extra story means more staging, material hoisting, and fall-protection setup. Rule of thumb (estimate): +10% labor per story above the first — a 2-story home costs ~10% more in labor than the identical 1-story roof, 3-story ~20% more. The calculator applies this automatically.

Permits: $150–$500, and non-negotiable

Most municipalities require a roofing permit ($150–$500, varies widely — some rural areas charge less, some cities more). The permit triggers an inspection, which is your free quality control: an inspector verifies nailing patterns, flashing, and underlayment. A contractor who suggests skipping the permit is telling you everything about how the rest of the job will go.

The DIY question: don't

This site has a DIY toggle on every calculator. For roofing, here's the honest case against it:

• Falls kill. Falls are a leading cause of construction fatalities, and residential roofs have zero of the engineered safety systems commercial sites do.
• Warranties require pros. Most manufacturer warranties — the 25–50 year ones you're paying for — require certified professional installation. DIY voids them.
• Code and insurance. Unpermitted, uninspected roof work can void your homeowners insurance when you need it most.
• The savings are real but incomplete. Yes, labor is 40–65% of the quote. But pros buy materials cheaper, work 3–5× faster, and their mistakes are warrantied. Your first roof is the most expensive one you'll ever install.

If budget is the issue, the smart moves are: get 3–5 bids (prices vary 20–40%), ask about off-season discounts, and consider whether an overlay is code-legal on your home — not the ladder.

6 quote red flags

1. 30%+ cheaper than every other bid. The money comes out somewhere — thinner underlayment, skipped flashing, uninsured labor, or a change-order ambush mid-job.
2. No license or insurance proof. Ask for the certificate of insurance from their insurer, not a photocopy. No GL + workers' comp = you absorb the risk.
3. Big deposit demanded upfront. 10–20% to schedule is normal; 50%+ before materials arrive is a cash-flow problem wearing a contractor costume.
4. One-line quote. "Roof replacement — $9,500" with no breakdown of materials, layers, underlayment, flashing, or disposal means you can't compare it to anything. Itemized or walk away.
5. Vague on underlayment and flashing. The shingles are the billboard; underlayment and flashing are the roof. If the bid doesn't name them, the installer isn't planning to do them right.
6. Storm-chaser pressure. Door-knocking after hail, "sign today for the insurance price," out-of-state plates — legitimate local roofers don't need ambush tactics. Check how long they've operated at a local address.

How to compare bids honestly

Get 3–5 bids, then normalize them before comparing:

• Same material and product line (not just "architectural shingles" — which brand and series?)
• Same tear-off scope (layers removed, disposal included?)
• Underlayment type named (synthetic vs. felt; ice-and-water shield at eaves?)
• Flashing: replaced or reused? (Replaced is correct.)
• Decking repair rate stated per sheet, in writing
• Workmanship warranty length, in writing (5–10 years is standard for reputable crews)

Then divide each bid by your roof's square footage (footprint × pitch factor — the calculator does this) to get comparable $/sqft installed numbers.