Dock Repair Cost Calculator

Unlike seawalls, which price per linear foot, dock repairs price by which systems are failing. Decking, fasteners, and hardware sit in the $750 to $3,000 tier; floats, framing sections, or a piling or two usually land in the $2,000 to $10,000 tier; and structural, storm, covered-dock, or lift-related work runs $8,000 to $25,000 and up. A full bid typically covers mobilization, in-water labor, materials, and hauling away the old boards or hardware — so a quote that looks unusually low is worth checking against that list.

Even a modest repair needs a crew, tools, and often a work boat or barge on site, which is why very small jobs rarely price below the bottom of the range. That mobilization floor also means batching repairs — new boards, loose hardware, and a tired float handled in one visit — usually beats three separate service calls. Photos of the damage, the dock's size and type, and the waterbody are what let a contractor sort a one-tier job from a three-tier job before anyone visits.

The number of failing systems is the biggest driver. Worn decking alone stays in the low tier; decking plus rotted framing plus waterlogged floats stacks tiers together. Material choice moves the re-decking band — composite and hardwood cost more than treated pine but outlast it in sun and spray. Water depth, current, and access decide how much equipment structural work needs: a walk-out repair on a shallow, calm shoreline prices differently than piling work in deep water that needs a barge-mounted rig. Storm damage tends to cluster failures, which is why post-storm bids often land in the top tier.

The repair-versus-rebuild crossover arrives when several systems fail at once. When framing, floats, and multiple pilings all need attention, the repair total climbs toward the $8,000 to $25,000+ tier that a rebuild also occupies — and a rebuild resets the clock on every component instead of one. The age and condition of the pilings usually decide it: sound pilings argue for repair, failing ones argue for starting over. Lift systems are commonly a separate line or a separate trade, so ask whether a dock bid includes the lift or excludes it.

Docks stand in regulated waters, but like-for-like repair generally travels a lighter path than new construction. At the federal level, the U.S. Army Corps of Engineers' Nationwide Permit 3 (Maintenance) covers the repair, rehabilitation, or replacement of a previously authorized, currently serviceable structure, allowing only minor deviations from the original — and basic maintenance under it generally does not require advance notification to the Corps. It was reissued without changes in the 2026 nationwide permit cycle, effective March 15, 2026. The qualifiers carry weight: a dock that was never authorized or has been derelict for years is not a "previously authorized, currently serviceable" structure, and enlarging or reconfiguring a dock is new work, not maintenance.

The state, local, and lake-authority layer still applies on top of the federal one, and it varies by waterbody. Some lake managers run permit-first regimes where any modification needs its own approval even when a like-for-like repair does not — Lake of the Ozarks, where Ameren Missouri permits docks under its FERC license, is a clearly published example covered in this site's market guide. Before signing, ask the contractor which permit path your specific repair triggers, whether the work counts as maintenance or modification under the local rules, and who files.

Sources: USACE — Summary of the 2026 Nationwide Permits (PDF)