Deck repair is the classic handyman margin trap: the customer sees three bad boards, you price three bad boards, and then your pry bar finds what the boards were hiding. Pricing deck repair well isn’t about better guessing, it’s about inspecting in the right order and writing the estimate so surprises change the price instead of eating it.
Inspect from the ground up, not the deck down
The visible symptom is usually decking, but the money is in the structure. Inspect in this order, because each layer determines whether the next one matters:
Footings and posts first: heaving, sinking, posts in ground contact, rot at the post base, and post-to-beam connections. Then the ledger, the board bolting the deck to the house, because a failing ledger is the most dangerous and most expensive problem a deck can have, and it hides behind flashing. Then joists: probe along the tops where water sits under old decking, check hangers for rust and missing nails. Then hardware generally, corroded fasteners age faster than wood. Only then price the decking, railings, and stairs the customer called about.
A screwdriver, a flashlight, and twenty minutes under the deck separate a real estimate from a hopeful one. If a deck is over 15 to 20 years old and the structure is marginal across the board, say the honest thing: repair money would be better spent toward replacement, and price that option too.
The repairs that hide inside repairs
Experienced deck pricing assumes connected damage. Rotten decking implies wet joist tops beneath it. A soft railing post implies the rim board it bolts to. Stairs read as “a few treads” and turn into stringers. Board replacement on an older deck also means matching a decking profile that may no longer exist, which turns a patch into a larger section. None of this is pessimism, it’s the base rate, and your price should reflect it before demolition proves it.
Price discovery like a professional, not a gambler
You cannot see inside a ledger or under decking at estimate time, so don’t price as if you can. Two tools handle it. First, scope precision: the estimate states exactly what’s included (“replace up to 12 deck boards, re-fasten railing at two posts”) and what’s excluded (“structural repair beyond listed items”). Second, a written discovery clause: concealed damage found during work will be documented, priced, and approved as a change order before proceeding. That sentence converts the worst moment in deck repair, mid-job bad news, into a professional process the customer agreed to upfront.
Then honor it operationally: when the pry bar finds the rot, photograph it, price the addition from your rates, and get approval before touching it. The photo does the selling. Nobody argues with a picture of a crumbling joist.
The numbers that go in the price
Beyond materials and hours, deck repair carries costs that first-year pricing forgets: demolition and haul-off of old lumber, fastener quantity (repairs eat screws and structural hardware at a rate that surprises people), trips, because repair jobs are rarely single-visit once discovery and material matching are involved, and the inspection time itself. If the repair is structural, check whether your jurisdiction wants a permit, ledger and stair work triggers it more often than people assume.
Keep the history, reuse the math
The tenth deck you price should take a fraction of the time the first one did, if you kept score: your real hours per board replaced, your discovery rate on decks by age, your standard discovery clause ready to paste. That’s the system we’re building into Punchlist for independent contractors and small crews, a cost catalog for repeatable repairs, change orders from your phone with the photo attached, and bid-versus-actual history that makes next month’s price smarter. Join the waitlist to get it when it ships.