Roof replacement
Roof replacement
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Roofing in Frederick & Central MD
Decking and sheathing
The layer under the shingles — plywood or OSB nailed to the rafters. Nobody can see its condition until the roof comes off, so the only honest way to handle it is a per-sheet price agreed before anyone starts.
Licensed & insuredFree written estimatesFrederick-based crewClean-site guarantee
Quick answer
How much does roof decking replacement cost per sheet?
We price it at $70 to $140 per four-by-eight sheet in 2026, including removal, the new sheet, fasteners and disposal. That is agreed before the job starts rather than after. A whole deck comes out at $2.80 to $4.50 per square foot, which is why a full replacement is a genuinely different conversation from the handful of sheets most re-roofs need.
The work
What decking actually involves.
Shingles are nailed to a deck, and the deck is what actually holds the fasteners. If it is soft, delaminated or sagging between rafters, new shingles over it will hold for a while and then start backing out, because the nail has nothing to grip. This is the one part of a re-roof that cannot be quoted accurately from the ground.
That uncertainty is where roofing quotes go wrong for homeowners. A quote with no decking line is not a quote without decking problems, it is a quote that becomes a conversation on the second morning when the crew is on the roof and you are at work. Ours carries a per-sheet figure from the outset, so if we find four bad sheets you already know what four sheets cost.
Older houses around Frederick and Carroll County often have plank decking rather than sheet goods — individual boards with gaps between them. Those are usually sound and worth keeping, but they will not take a modern nailing pattern reliably across the gaps, so the right answer is normally an overlay of new sheathing rather than replacement, and we will show you which situation you have.
Per-sheet price up front
Plank decking handled
You see it before we cover it
What decking costs in Maryland
Decking is priced per sheet on top of the roofing work, at the figure agreed before the tear-off. Most Maryland re-roofs need somewhere between zero and six sheets.
- Sheathing replacement, per sheet
- $70 – $140
- Full deck replacement, per sq ft
- $2.80 – $4.50
- Overlay sheathing on sound plank decking
- $2.20 – $3.80 per sq ft
- Rafter or truss repair, per location
- $250 – $900
- Fascia board replacement, per linear foot
- $12 – $26
Ranges, not quotes. Real numbers come from a walkthrough — access, condition, height and finish level move a price more than square footage does. Estimates are free and in writing.
Get your numberFull decking cost guide for MarylandPrefer to just talk?
Call and describe the job. You’ll get a straight answer on whether it’s something we do and roughly what it runs.
(301) 524-1729
Self-performed
Decking and sheathing
What’s included
Everything the decking scope actually covers.
Written into the estimate, not assumed. If something on your job is not on this list, it gets priced and named before anyone starts.
Priced per sheet, agreed in advance
01A number on the contract before the first shingle comes off, so replacement is arithmetic rather than a negotiation held while your roof is open.
Everything walked and sounded
02Once the roof is stripped, the whole deck gets walked and checked for spring and soft spots. The bad areas are almost never only where the leak was.
Photographed before it is covered
03Every sheet we replace, photographed in place, so the count on the invoice is a count you can see rather than a number you take on trust.
Matched thickness and proper span
04New sheathing at a thickness that suits the rafter spacing, clipped or blocked at the edges, with the gap at the joints the manufacturer asks for so it can move without buckling.
Plank decking assessed honestly
05Sound boards stay and get overlaid; split, cupped or cut-up boards get replaced. A board deck is not automatically a problem and we will not sell it as one.
Rot causes traced, not just cut out
06Soft decking has a reason — a failed boot, missing kick-out flashing, a starved attic. Replacing the wood without fixing the cause just resets the clock.
On the job
Roofing work across Frederick & Central MD.
What the trade looks like at each stage. Photos of our own recent jobs come out at the walkthrough, on the actual house.
Straight answers
Decking questions
Not covered here? Call and ask — you’ll get a real answer, not a “depends on the job”.
From inside the attic you can see a good deal of it: dark staining, delaminated plies peeling apart, daylight at the edges, or nail points that have backed out. From outside, a deck that is failing often shows as a visible dip or wave between rafters, and underfoot it feels springy. None of that is conclusive until the shingles are off, which is exactly why the per-sheet price matters more than the prediction.
It can be done and it should not be. The shingle warranty assumes a sound nailing base, and a nail driven into soft or delaminated sheathing does not hold — it works loose over a couple of seasons and lifts the shingle above it, usually first on the windward slope. If somebody quotes a re-roof with no decking provision at all and finds soft wood on the day, that is the point at which you find out what their plan was.
Usually not. Plenty of older houses in Frederick and Carroll County have plank decking that is in better shape than plywood half its age. The issue is the gaps between boards — a modern shingle nailing pattern cannot guarantee solid wood at every fastener. Where the boards are sound the answer is an overlay of new sheathing over the top at $2.20 to $3.80 per square foot, which is cheaper and less disruptive than tearing the boards off.
Same crew, same visit
The rest of the roofing work.
Most roofing jobs are two or three of these at once, which is why they are priced and scheduled together rather than as separate call-outs.
From the field
Read up before you book.
Longer answers than a quote page has room for — how the work fails, what putting it right actually involves, and when waiting is the honest call.
Sources worth your time
Check us, and check the work
None of these are ours. They are the offices and standards bodies that set the rules we work to, so you can verify what we say rather than take it.
National Roofing Contractors Association
Independent guidance on roof edge detailing, where a roof stops and a gutter starts.
OpenFrederick County permits and inspections
The county office that decides whether your job needs a permit. Routine gutter work does not; structural and roof work usually does.
Open
Talk to the people doing the work
Get a straight number for the whole job.
Tell us what needs doing. We’ll walk it with you, sequence every trade it touches, put the price in writing, and leave you to decide.
Get a quote
Let’s price your project.
Two short steps. No obligation, no pressure — just a clear number and a straight answer about what the job involves.
Tick as many as you like. Most jobs are two or three of them at once, and I sort out the detail when I come and look. Nobody gets turned away for choosing the wrong box.
