Boat Lift Cost by Type: Four-Post, Elevator, Floating and Davit

By Ed Brannigan, Marine contractor. Reviewed by Amanda McCallister, editor.

Boat Lift Installation | Bulkhead Repair I remember knee-deep in the Intracoastal, watching a customer's brand-new four-post lift groan and settle sideways when the cable snapped. He'd bought the cheapest model he could find online, and I got the call to pull it back out. That's the real math of boat lift cost: it's not just the purchase price, it's what the water, the weather, and the boat do to it afterwards. In 30 years of building docks, I've installed every kind of lift you can put next to a pier. Four-post, elevator, floating, davit. Each has its own price tag, and that price tag can be misleading. So I'm going to break down what each type actually costs you, both to buy and to run, and where the hidden expenses live.

Four-Post Lifts

Four-post lifts are the workhorses of the marina. You've seen them—four steel columns sitting on the seafloor, a cradle that comes up between them. For a typical 24-foot center console around 5,000 pounds, you're looking at $6,000 to $12,000 installed, give or take. That's with a ShoreStation or a similar brand and a basic galvanized frame. Add a remote, LED lighting, and stainless steel cable, and the number climbs to $15,000 quick. And that's before the electrical work, which runs $500 to $1,500 depending on how far the panel is from the dock. The cost varies by capacity, not just boat length. A 10,000-pound four-post for a 30-foot sportfisher might run you $18,000 to $25,000. The price jumps because the beams get heavier, the motor gets bigger, and the concrete footings have to be deeper. Plus, on soft bottom, you might need pilings driven—that can add another $3,000 to $5,000. So when you compare quotes, make sure the contractor is accounting for the actual bottom conditions. I've seen a lift installed on sand that shifted six inches after the first winter storm. The key thing to remember about a four-post? It's simple. Fewer moving parts mean fewer things to corrode. But it's not protected from the salt. You'll be replacing cables every five years, and the motor every eight, call it. That's an operating cost you should budget for.

Elevator Lifts

Elevator lifts work like a dock elevator. The platform drops below the boat, you float over it, and it raises you out of the water. They're common in high-traffic marinas and places with big tide swings. For a 20,000-pound boat, an elevator lift from a company like HydroHoist will run you $25,000 to $45,000 installed. The price goes up substantially if you need a custom deck to fit the boat's running gear. Some of these use an air system—bladders that inflate and deflate—others use electric actuators. Air systems are cheaper to install, but they require a compressor and are slower to raise. Electric drives are snappier, but they cost more and the screws or cables need regular attention. I did a job in Louisiana where the customer bought an elevator lift because the wake from tugboats was slamming his old four-post. The elevator lift didn't solve the problem entirely—the platform caused more wake itself—so we had to add a breakwater. That's a digression, but it tells you something: the cost of a lift is never just the lift. You're paying for the whole system around it. So expect to pay more for an elevator lift, but you get a cleaner look and you don't have the posts in the water, which is a big deal if your marina has strong currents.

Floating Lifts

Floating lifts sit on the surface. They don't touch the bottom, so they're ideal for deep water, soft mud, or areas with big tidal range. Prices are lower: a 6,000-pound floating lift runs $4,000 to $8,000, and a 12,000-pound one runs $9,000 to $15,000. HydroHoist makes a lot of these, and so do a bunch of local fabricators. The catch is the mooring. You've got to keep the lift from drifting, which means either anchoring it or tying it to your dock. If you're on a river with a current, that's a problem. The lift will pull on the anchor lines and you'll have to retension them every couple of weeks. On the coast, you'll also get marine growth on the floats that needs scraping or pressure washing. The cost model here is mostly by capacity and the type of float. Polyethylene floats are cheap, but they degrade in the sun. Aluminum frames last longer but cost more. I'd say the real expense is in the anchors and the rigging, which a lot of folks forget to budget for. A decent anchor system can add $1,500 to $3,000. And if you're in a hurricane zone, you'll want to be able to move the lift to a protected creek, which means you need a trailer.

Davit Lifts

Davit lifts are the simplest: a crane-like arm with a cable that lifts the boat from a single point, usually on a piling or the edge of a dock. They're for boats up to 3,000 or 4,000 pounds—small skiffs and jet skis. Prices are the most affordable: $1,200 to $3,500 for a complete setup, including the base plate and motor. I put one on my own dock for a 12-foot skiff. It's a manual winch, works fine. The trick is getting the balance right. If the boat's center of gravity is off, it swings when you lift it. And you can't have any gear left in the boat. I've seen a guy snap a cable because he forgot about a cooler full of ice. The cost of a davit is mostly in the hardware. A cheaper unit from a big-box store will be galvanized, but I'd spring for a stainless version. Add $400 to $600 for that. Also, many docks need a reinforcement plate or a stronger piling. That's another $500, but worth it. Overall, if you've got a small boat, a davit is the most cost-effective way to get it out of the water.

What Actually Drives the Price

Here's the breakdown you won't see on the manufacturer's website. The biggest cost driver is the installation, not the equipment. A lift that sells for $8,000 might cost $6,000 to install, depending on the plant. You need a crane to set some lifts, or a forklift, and you need divers sometimes. That labor adds up. Second is the electrical. Most lifts need a 240-volt circuit. If your dock power is a hundred feet away, that's conduit, wire, and a disconnect—$1,000 to $2,500. Third, there's the permitting. In Florida, you typically need a permit for a lift, and that's $100 to $400. The engineer's stamp, if required, is $500 to $1,500. And fourth, the accessories. Everyone ends up buying a remote, a manual release, a ladder, a wheel guide. That's another $500 to $1,000 easy. So when you get a quote, ask the contractor to itemize the crane, the electrician, the permit, and the extras. Otherwise you'll be surprised. In the end, the cheapest lift is rarely the cheapest. I tell my clients to budget 20% more than the quoted price, and to give the lift a good washdown every time you take it out. That saves more money than any brand upgrade.

Frequently Asked Questions

Is a davit lift or a four-post lift cheaper? A davit is cheaper for small boats—$1,200 to $3,500 installed versus $6,000 to $12,000 for a four-post. But davits only work for skiffs and jet skis. If you've got a 24-footer, you need a four-post. Do I need a permit for a boat lift? Yes, in most coastal states. In Florida, permits range from $100 to $400, and an engineer's stamp can add $500 to $1,500. Always check with your county before you buy. Which boat lift costs the most to maintain? Elevator lifts, because they have more mechanical parts underwater. Four-posts need cable and motor replacement, but elevators need hydraulic hoses, seals, and sometimes a dive crew to inspect the mechanism. What's the total installed cost of a floating lift? A 6,000-pound floating lift runs $4,000 to $8,000, but you'll spend another $1,500 to $3,000 on anchors and rigging. Multiply by 1.2 for a realistic budget.