These are market ranges from published cost data, not our quote. What your job costs depends on depth, access, scope and materials.
New construction
| Floating dock | $15–$40 per sq ft |
|---|---|
| Fixed piling dock (wood) | $20–$40 per sq ft |
| Aluminum pipe dock | $20–$40 per sq ft |
| Modular dock | $30–$50 per sq ft |
| Covered dock / boathouse | $40–$90 per sq ft |
| Basic dock, all in | $3,000–$10,000 |
| Dock with a boat lift | $5,000–$38,000 |
Source: HomeGuide, Fixr
Square-foot pricing is the honest way to read a dock estimate, because footprint is the one number that moves everything else — piling count, framing, decking and roof area all scale with it.
Cover
| Covered / boathouse construction | $40–$90 per sq ft |
|---|---|
| Covered dock, entry point | from about $12,000 |
| Boathouse addition to an existing dock | $15,000–$20,000 |
| Luxury boathouse | $15,000–$55,000+ |
Source: HomeGuide, Fixr
Adding cover to an existing dock is priced against what is already there. If the pilings cannot carry a roof, the roof job becomes a piling job first.
Lifts
Lift pricing is where published figures mislead people most, because equipment-only prices and installed turnkey prices are quoted in the same breath. They are not the same number.
| Equipment only, common freestanding and pile-mounted lifts | roughly $2,000–$8,000 |
|---|---|
| Installed turnkey, 7,000–13,000 lb vertical lift on existing pilings | roughly $12,000–$16,000 |
| Installed turnkey, same lift with new pilings | roughly $16,000–$20,000 |
| Above 24,000 lb capacity | $25,000+ |
| Premium when new pilings are part of the job | roughly $4,000–$5,000 |
Source: HomeGuide (equipment), The Boat Lift Pros (installed)
Foundation
| Piling installed | $200–$600 each |
|---|---|
| By length | $50–$150 per linear foot |
| Repair an existing piling | $300–$1,000 each |
| Full replacement | $500–$1,500 each |
| Typical 4–6 piling project | $4,000–$6,000 |
| 8–14 pilings, double slip | $9,000–$15,000 |
| 12–20+ pilings | $13,000–$25,000 |
Source: Angi
Piling count is set by depth and load. Deep water near the main channel needs longer pilings and more of them than a shallow flat does.
Surface
| Pressure-treated pine | $5–$8 per sq ft material — needs annual sealing, prone to rot and warp |
|---|---|
| Composite | $4–$16 per sq ft — far lower maintenance |
| Aluminum | $8–$15 per sq ft — minimal maintenance, most expensive, gets hot underfoot |
| Re-deck, installed | $30–$55 per sq ft |
Source: HomeGuide, Trex
Repair
| Minor repairs | $100–$800 |
|---|---|
| Moderate repairs | $800–$2,000 |
| Extensive repairs | $3,500–$33,000 |
| Average dock repair | about $3,376 (range $889–$5,929) |
| Sinking dock | $150–$800 |
| Rot repair | $200–$2,000 |
| Dock leveling | $180–$900 |
| Frame repair | $150–$500 |
| Roof repair | $200–$800 |
| Float replacement, single float | $100–$400 |
| Storm or hurricane damage | $1,000–$33,000 |
| Foundation damage | $3,000–$33,000 |
Source: HomeGuide, Angi
Shoreline
We do not publish a price range for seawall and shoreline stabilization, because we do not have a verified figure for this market and a made-up range is worse than none.
What we can tell you is what drives it: shoreline stabilization is a Section 26a activity, so it carries the same $1,000 TVA application fee and the same 100- to 120-day timeline as a dock. Bank height, access for equipment, and how much of the work has to be done from the water set the rest.
Local
Lake Guntersville moves about two feet a year. Minimum winter elevation is 593 feet, and the typical summer operating range is 594 to 595 feet. There is no meaningful dry-work window.
That means nearly all work here is barge or in-water work. It is a real line item, and it is part of why lake pricing runs above pond or river-bank equivalents for the same structure.
Budget the permit too: $1,000 to TVA for a minor shoreline alteration, and a wait of 100 to 120 days. Any budget that leaves those out is not a budget.
Variables
Decision
When the repair estimate passes about half the cost of replacement, rebuild. Replacement on this lake averages around $15,000, so once a repair scope crosses roughly $7,500 you are usually buying an old dock at new-dock prices.
Structural rot in multiple pilings is what most often pushes a job over that line.
Planning horizon
Treated wood pilings in fresh water commonly last 20 to 30 years as a system, with the decking wearing out first (ShoreProtect). Galvanized lift cable should be replaced about every two years, and stainless lasts roughly twice as long (Marine Construction Magazine).
One deadline is fixed rather than gradual: all unencased flotation must be removed and replaced by December 31, 2031, and unencased foam may not be used for new construction, repairs or replacement now. If your dock floats on bare foam, that is a scheduled expense, not an optional one.
Tell us the footprint, the depth at the end of your run and whether you want cover. We price after we look at it.
Tap to call — Mon–Sat 7am–6pm, calls answered 24/7.