Tear-off in progress showing the plywood decking under the shingles

Cost to Replace Roof Plywood and Shingles in Schenectady

The numbers first, then what moves them, worked through on a real-sized roof.

  • $9,000–$14,500 typical reshingle
  • $95 per sheet of decking
  • Free estimates, this week

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Replacement costs, Schenectady County

Tear-off and reshingle, architectural asphalt Typical 1,500–2,000 sq ft roof; pitch and stories move it $9,000–$14,500
Spot decking, a few soft sheets Found during tear-off; most roofs need 0–6 sheets +$95 per sheet
Full redeck, all plywood replaced For delaminated or undersized decking, priced before work starts +$2,500–$4,500
Ice-and-water shield at eaves and valleys NYS code requires the sealed membrane in our climate, so any quote without it is missing scope included

Every estimate we write shows this same breakdown for your actual roof, with a sheet count you can check against ours.

When plywood actually needs replacing

The cost to replace roof plywood and shingles splits into two numbers: a reshingle you can price firm, and decking you can only price per sheet. Shingles come off; plywood mostly stays. Decking gets replaced when it's soft (rot from a slow leak), delaminated (plies separating, feels spongy underfoot), or too thin to hold nails. Some mid-century roofs carry 3/8" sheets that modern code and shingle warranties both frown on. Nobody can count your bad sheets from the ground: a complete quote prices the reshingle firm and the decking per sheet, found as the old roof comes off.

The per-sheet math, worked

A 1,700 sq ft roof is about 54 sheets of plywood. Say tear-off finds 4 soft ones around an old chimney leak: 4 × $95 is $380 on top of the reshingle. Annoying, not devastating. The number to fear is a bid that says 'decking as needed' with no per-sheet price attached, because that blank is where budgets go to die. Ours is printed here: $95. If a bid you're holding says otherwise, bring both to the same sheet count and compare again.

Reading a bid against this page

Three checks. The per-sheet decking price is in writing. Ice-and-water shield is in scope, not an add-on discovered later. And the shingle spec names the product, because 'architectural shingles' spans a $40-per-bundle spread. The cost to replace roof plywood and shingles is only comparable when all three pass. Otherwise the low bid is just the least-specified one, whoever you end up hiring.

Replacement cost questions

How much do roofers charge to replace plywood?

Around here, about $95 a sheet installed, materials and labor. The full answer with the framing math is on our FAQs page.

Can I just reshingle over the old layer?

NY allows 2 layers, but overlays hide the decking we'd want to inspect, add weight, and shorten the new shingles' life. We quote both when an overlay is legal on your roof; the overlay is cheaper today and costs more at the next tear-off. The inspection you skip with an overlay is exactly the decking check this page is about. The per-sheet line only exists when the old roof comes off.

How long does a replacement take?

1–2 days on most houses once material lands. Decking discoveries don't add days, because sheets go in as the tear-off moves across the roof. Permits add lead time that varies by town. Each service-area page says who issues yours and how long they take.

Is any of this covered by insurance?

Wear isn't. Storm damage can be. The storm page covers the deductible math and the photo documentation we hand you. For replacement-size claims, the breakdown on this page is what the adjuster's estimate should show line by line.

Free estimate, this week

Or skip the form: call, describe what you're seeing, and we'll tell you what it likely is.

(518) 901-2747