YardMath

Roof replacement cost

Two national guides publish a typical range for a full replacement, and they price it differently: Fixr works in dollars per square foot of roof, Bob Vila in a total for a whole house. Both are below with their own dates. The spread is wide because the tear-off, the deck underneath and the pitch are unknown until the old roof is off — which is also why every guide tells you to get three written quotes.

What the guides publish
Fixr$3.75 – $11 per sq ft

Updated: February 4, 2026 · typical $4.75 · A new asphalt roof averages $10,000. Labor is 40–60 % of the total, about $4,000–$6,000.

Bob Vila$5,727 – $12,418 total

Updated Apr 16, 2024 · typical $9,072 · Citing HomeAdvisor and Angi. A 3,000 sq ft home runs $11,200–$16,000.

Homewyse$5.09 – $6.66 per sq ft

May 2026 · Asphalt shingle install only, before tear-off or deck repair.

What the parts cost

Asphalt shingles$8,000 – $32,000 total

Fixr. Bob Vila puts materials alone at $2,000–$4,000.

Metal$14,000 – $38,000 total

Fixr

Cedar shake$10,000 – $30,000 total

Fixr

Concrete tile$14,000 – $24,000 total

Fixr

Clay tile$14,000 – $28,000 total

Fixr

Slate$20,000 – $60,000 total

Fixr

Copper$30,000 – $60,000 total

Fixr

Tear-off and disposal$1,000 – $1,500 added

Bob Vila. Fixr prices it at about $50 per square including dumping.

Deck replacement$2 – $8 per sq ft

Fixr. Only known once the old roof is off.

Fascia and soffit repair$500 – $2,500 added

Fixr

Labor$1.50 – $3 per sq ft

Bob Vila: $150–$300 per roofing square, by pitch and access.

What moves the price

Pitch and access
A steep or cut-up roof is slower and needs staging; both guides put labor at 40–60 % of the bill, so hours drive the price more than shingles do.
What is underneath
Rotten decking is priced at $2–$8 per sq ft by Fixr and is invisible from the ground. Significant rafter damage can add up to $5,000.
Layers
Stripping a second or third layer costs more to remove and dispose of; Fixr prices tear-off at about $50 per square.
Climate details
Ice and water shield runs about $0.50 per sq ft in cold regions; extra venting or insulation in hot ones adds $100–$2,000 (Fixr).

Questions

How much does it cost to replace a roof?

The guides read for this page publish $3.75–$11 per square foot with a $4.75 average (Fixr, February 2026), $5,727–$12,418 with a $9,072 national average (Bob Vila, April 2024), and $5.09–$6.66 per square foot for asphalt shingle installation before tear-off (Homewyse, May 2026).

Why do the published figures differ so much?

Because they price different things. A per-square-foot figure for installing shingles excludes tear-off, deck repair and disposal; a whole-house average includes them. Read what each range covers before comparing it with a quote.

How do I work out my roof's area?

Roof area is not floor area: a pitched roof is larger than the footprint it covers, and the steeper it is the larger it gets. Measure the footprint and apply the pitch multiplier, then add for overhangs.

These are the ranges other people publish, gathered on 2026-09-06 — not our estimate, and not a quote. Every guide is linked above with the date it prints. For the quantity rather than the price: Roofing material calculator. See every cost page.