Anchor Windlass: Types, Service, Repair and Costs in 2026

An anchor windlass is the powered winch that raises and lowers your ground tackle so you are not hauling a hundred pounds of chain and steel over the bow rail by hand. If you anchor more than a couple of times a season, a boat windlass is the difference between an easy afternoon on the hook and a wrenched back. This guide walks through what the machine actually does, the difference in vertical vs horizontal windlass layouts, how to size a gypsy to your chain and rope, the electrical side that trips up most owners, the failures that put a windlass out of service, and real 2026 numbers for windlass repair and windlass installation. It is written from the perspective of someone who has rebuilt these units on the dock, not from a brochure.

Yacht Service Network (YSN) is a free marine-services marketplace. If your windlass is groaning, tripping the breaker, or you are planning a fresh install, you can find a vetted installer near you at no cost. Owners search free, and marine electricians and riggers list their business free. We will point you to that at several stops along the way.

What an anchor windlass actually does

A windlass is a specialized winch mounted on the foredeck whose job is to store, deploy, and retrieve your anchor rode. The rode is the chain, the rope, or the combination of both that connects the anchor to the boat. Inside the housing sits an electric motor (some larger yachts run hydraulic) that drives a gearbox, and the gearbox turns a shaped wheel called the gypsy, or sometimes the wildcat. The gypsy has pockets machined into its rim that grab each link of chain so the chain cannot slip. When you press the up switch, the motor spins, the gypsy rotates, and the chain climbs out of the water, over the bow roller, and down into the anchor locker.

People assume the windlass holds the boat at anchor. It does not, and this is the single most common misunderstanding that leads to a stripped gypsy or a burned-out motor. The windlass is a retrieval tool. Once the anchor is set, the load should be transferred to a chain snubber or a bridle attached to a deck cleat, taking the strain off the windlass entirely. Leaving the boat hanging on the windlass all night, especially in a chop, pounds the gears and the clutch and shortens the life of the whole unit. Set the hook, then snub it off. Treat the windlass as a machine that lifts, not a machine that holds.

A windlass also gives you controlled lowering. Rather than free-dropping the anchor and letting the chain pile on top of it, most units let you power the anchor down or ease the clutch so the rode pays out at a rate you control. On a windy day trying to set in a crowded anchorage, that control is worth a great deal.

Vertical vs horizontal windlass

The first fork in the road when choosing a unit is the vertical vs horizontal windlass question. The names describe the orientation of the motor and the axis of the gypsy, and each layout has a following.

A vertical windlass mounts with the gypsy horizontal on the deck and the motor and gearbox hanging below deck, inside the anchor locker. The chain wraps roughly 180 degrees around the gypsy before dropping straight down through the deck into the locker. Vertical units are popular on modern production sailboats and midsize powerboats because the below-deck motor keeps the deck clean, protects the electrics from spray, and the wrap angle gives excellent chain grip. The trade-off is that you need vertical clearance in the anchor locker for the motor and gearbox, and the chain has to fall far enough to stack on its own.

A horizontal windlass mounts everything on deck. The gypsy sits on a horizontal axis, the motor and gearbox are in the same housing beside it, and the chain wraps around 90 degrees before feeding down through a nearby hawsepipe. Horizontal units are the choice when locker depth is limited, because almost nothing intrudes below deck. They are also handy on boats where you want a warping drum and a gypsy both accessible from a standing position. The downside is a deck-mounted motor sitting in the weather, and a shallower wrap angle that can let chain skip if the gypsy is worn or mismatched.

There is no universally correct answer. If you have a deep locker and want a tidy foredeck, vertical wins. If your locker is shallow or you are repowering a boat that was originally horizontal, matching the existing layout saves money and deck surgery. Brands sell both. Lewmar, Maxwell, Lofrans, Quick, and Muir all offer vertical and horizontal families, so you can pick the orientation and still get a quality unit.

Sizing the gypsy to your chain and rope

The gypsy is the heart of the system, and it is chain-specific and rope-specific. This is where more windlass grief starts than anywhere else. A gypsy is machined to fit one chain size in one particular standard. If the pockets do not match the chain pitch and wire diameter within tight tolerance, the chain will ride up, skip, and eventually chew the gypsy or the chain, or both. You cannot run 5/16 inch G4 chain on a gypsy cut for 5/16 inch BBB and expect it to behave. The pitch is different even though the nominal size reads the same.

Chain comes in several standards you will actually meet on the dock. In North America you will see G4 (also called G43, high test) and BBB, plus proof coil. Metric boats and much of the imported gear use ISO calibrated chain in DIN or ISO pitch. When you order a gypsy, you specify the chain standard and size, for example "8mm ISO G40" or "5/16 inch G4," and the manufacturer supplies the matching wildcat. Get the caliper out and measure your existing chain if you are not certain what you have. Measure the wire diameter of a single link and the inside length of a link to nail down both size and pitch.

Many gypsies are dual-purpose, cut to handle both chain and a spliced rope tail on the same wheel. If you run a rope-and-chain rode, common on smaller boats to save weight and locker space, the gypsy needs a rope section sized to your line diameter, and the rope-to-chain splice has to pass cleanly over the gypsy. A rope-to-chain splice that is too bulky will jam at the stripper, the little metal finger that peels the rode off the gypsy and directs it below. Size the splice, the rope, and the chain as one system, not three separate purchases.

Matching the windlass to boat size and ground tackle

A windlass is rated by pull, usually given as a maximum pull and a working load. The rule most builders and manufacturers use is that the windlass should handle at least three times the total weight of your ground tackle, meaning the anchor plus the entire rode, chain and rope combined. Some go to four times for a safety margin and to cover the extra load when the anchor is buried and you are breaking it out of the bottom.

Work an example. Say you have a 40 foot cruising sailboat with a 44 pound anchor and 200 feet of 5/16 inch G4 chain. That chain weighs roughly 1.1 pounds per foot, so 200 feet is about 220 pounds. Add the 44 pound anchor and you are at 264 pounds of ground tackle. Multiply by three and you want a windlass with a working pull around 800 pounds, and a maximum pull comfortably above that. On that boat you land in the mid-range of the Lewmar V700 to V1000 family, a Maxwell RC10 or HRC10, a Lofrans Tigres, or a Quick or Muir unit of similar class. Undersize the windlass and it will strain, overheat, and trip the breaker every time you try to break out a well-set anchor in a blow.

Do not forget the anchor locker geometry and the fall height. A windlass needs the chain to drop far enough below the gypsy to self-stack, generally a minimum fall of around 12 inches for smaller units and more for bigger chain. If the chain piles up under the deck pipe and reaches the gypsy, it jams. On boats with shallow lockers this is a real constraint, and it sometimes drives the choice toward a horizontal unit or toward a chain pipe relocated to spread the pile.

The electrical side that trips people up

More windlass service calls are electrical than mechanical. A windlass draws enormous current, often 80 to 400 amps depending on size and load, and that current has to travel from the battery, all the way to the bow, and back. Undersized wire is the number one install mistake, and it shows up as a windlass that runs slow, drops voltage, and cooks itself trying to lift under load.

Wire gauge is set by the amperage and the round-trip distance, which on most boats is long because the battery is amidships or aft and the windlass is at the bow. For a common midsize windlass pulling 100 to 150 amps over a 40 to 50 foot round trip, you are typically running 2 AWG to 2/0 AWG cable to keep voltage drop under the 3 percent target ABYC recommends for this kind of circuit. Bigger units on long runs go to 2/0 or even 4/0. When in doubt, size up. Copper is cheaper than a burned motor. Every manufacturer publishes a wire sizing chart for their models based on current and cable run length, and you follow it rather than guessing.

The circuit needs a properly rated breaker or fuse close to the power source, sized to protect the cable and the motor, commonly in the 50 to 150 amp range for midsize units. A dedicated windlass breaker also gives you a way to kill power at the helm or panel, which is a safety must. Never wire a windlass without overcurrent protection. If the motor stalls with a jammed chain and there is no breaker, the cable becomes a heating element.

Between the switch and the motor sits a solenoid, sometimes a pair of them for up and down, or a reversing solenoid. The foot switch or remote carries only a small control current to the solenoid coil. The solenoid then closes the heavy contacts that feed the motor its hundreds of amps. This is why the switches themselves are light-duty while the solenoid is a chunky sealed box near the motor. Solenoids are a common failure point because their contacts pit and corrode over time.

Because the windlass load is so high and the bow is so far from the house bank, many builders and refit shops install a dedicated battery near the bow to feed the windlass, then charge that battery from the house system through the long run at low current. A battery near the bow shortens the high-current path to a few feet, which lets you use shorter heavy cable and holds voltage up during a hard pull. It costs more and adds weight forward, so it is a judgment call, but on bigger boats with big windlasses it is common and worth it.

If you are working through the wider electrical picture on your boat, our guide to marine electrical contractors covers how to find and vet the right pro for high-current jobs like this one.

Foot switches vs remote control

You control a windlass from one or more of three places. Deck foot switches are the traditional pair of rubber-covered buttons mounted on the foredeck, one for up and one for down. You stand at the bow, watch the chain and the anchor, and operate with your foot while your hands stay free to fend the anchor off the hull. Foot switches are simple, reliable, and cheap to replace, but they sit in the weather and the rubber boots crack and let water in, which corrodes the contacts.

A handheld or wired remote lets you operate the windlass from a distance, useful if you single-hand and want to watch both the chain and the depth sounder, or work the windlass while at the helm. Wireless remotes are convenient but add a receiver that can fail and a battery that dies at the worst time. Many owners keep both a wired foot switch on deck as the reliable primary and a remote as a convenience.

Some boats also add an up-down toggle at the helm station or a chain counter that shows how much rode you have deployed. A chain counter is a nice upgrade for anchoring in the dark or in deep water where you want a known scope. Whatever control scheme you choose, keep at least one method simple and weatherproof, because the windlass has to work when the anchor drags at 2 a.m. and the remote is flat.

Common windlass failures

Windlasses live in the worst spot on the boat, the bow, where they take spray, sun, and the occasional green water over the rail. They fail in a handful of predictable ways.

Motor failure. The electric motor burns out from repeated overloading, from running under low voltage because of undersized cable, or from water intrusion that corrodes the windings and brushes. A motor that hums but will not turn, or turns weakly and slowly, is often on its way out. Brushes wear down and can sometimes be replaced, extending life, but a motor that has been soaked or cooked usually needs replacement.

Solenoid failure. The solenoid contacts pit and corrode. Symptoms include the windlass working intermittently, working in one direction but not the other, or a loud click from the solenoid with no motor response. Solenoids are relatively cheap and are one of the more satisfying repairs because swapping one often brings a dead windlass back to life.

Clutch problems. The clutch, or cone clutch on many units, lets you free-wheel the gypsy for a fast manual drop and lets you engage it for powered hauling. A clutch that slips under load, so the motor spins but the chain does not lift, is either worn, contaminated with grease where it should be dry, or simply needs adjusting. A clutch frozen from corrosion will not release for a manual drop.

Corrosion. Salt is the enemy. Corrosion seizes moving parts, eats electrical connections, welds stainless fasteners into aluminum housings through galvanic action, and turns a five minute service into a two hour fight with penetrating oil. Much windlass failure is really corrosion failure wearing another name.

Stripped or worn gypsy. A gypsy that no longer grips, either because it is worn from years of use or because it never matched the chain properly, lets the chain skip and jump under load. Once the pockets are rounded off, the wildcat has to be replaced. Running the wrong chain standard accelerates this dramatically.

Maintenance that keeps a windlass alive

A windlass rewards a little regular attention with years of trouble-free service. Skip it and you will meet all the failures above ahead of schedule.

Freshwater rinse. The single most valuable habit is rinsing the windlass and the chain with fresh water after saltwater use. Salt crystals draw moisture and drive corrosion into every seam and fastener. Hose the gypsy, the housing, and the exposed chain, and let the whole thing dry. It takes two minutes and it doubles the interval between real problems.

Service the clutch. At least once a season, take the windlass apart down to the clutch cone. Clean the friction surfaces, check for wear and corrosion, apply the correct grease only where the manufacturer specifies (the friction surfaces themselves usually stay dry or lightly waxed, not greasy), and reassemble. A clutch that is serviced yearly releases cleanly for a manual drop and grips reliably for hauling. A neglected clutch seizes.

Anodes. Some windlasses, particularly larger and underwater-influenced installations and any unit with mixed metals in a wet locker, use a sacrificial anode to protect the housing from galvanic corrosion. Where fitted, inspect the anode each season and replace it when it is half consumed. A wasted anode means the housing itself is next in line to corrode.

Electrical connections. Once a season, open the electrical connections at the motor and solenoid, clean the lugs, check for green corrosion, and protect them with a corrosion inhibitor. Confirm the connections are tight, because a loose high-current lug generates heat and voltage drop. Check that the drain holes in the housing and locker are clear so water does not pool around the motor.

Grease and gearbox. Follow the manufacturer's schedule for lubricating the gearbox and any grease points. Different brands specify different intervals and lubricants, so read the manual for your Lewmar, Maxwell, Lofrans, Quick, or Muir unit rather than assuming they are all the same.

Windlass service fits into the broader picture of keeping a boat's systems healthy. Our complete guide to yacht maintenance services and costs puts windlass work in context with the rest of the annual list.

The manual override

Every properly specified windlass has a manual override, and every owner should know how to use it before they need it. The override matters because the windlass runs on electricity, and electricity is exactly what fails when a battery dies, a breaker sticks, or a motor burns out with the anchor still on the bottom.

There are two override paths. First, the clutch. Loosening the clutch, usually with a supplied winch handle or a bar that fits the clutch nut, lets the gypsy free-wheel so you can drop the anchor by gravity even with no power. This is also how you make a fast controlled drop in normal use, easing the clutch to pay out chain. Second, most windlasses have a manual recovery capstan or a socket for the winch handle that lets you crank the gypsy by hand through the gearbox. It is slow and it is a workout, but it will get an anchor up when the motor is dead. Some models add an emergency crank point specifically for this.

Practice the override at the dock. Find the winch handle, learn which way loosens the clutch, and confirm the emergency crank engages. The middle of a squall with a dragging anchor is not the moment to read that section of the manual for the first time.

2026 windlass repair and installation costs

Prices move around by region, boat size, and how buried the wiring is, but these 2026 figures reflect what owners are actually paying in the United States for common work. Use them to sanity-check a quote, not as a fixed rate card.

Windlass unit, parts only. A quality electric windlass for a 30 to 45 foot boat runs roughly 1,200 to 3,500 dollars for the unit itself in 2026, depending on brand and pull rating. Smaller units for boats under 30 feet start around 700 to 1,200 dollars. Larger yachts with big vertical or hydraulic units easily run 4,000 to 8,000 dollars and up. Lewmar, Maxwell, Lofrans, Quick, and Muir all span these bands, with Maxwell and Muir tending toward the heavier commercial-grade end and Quick and Lofrans often competing on value.

New windlass installation, labor. A fresh install where none existed before is the big number, because it means cutting the deck, reinforcing the mounting area, running heavy cable the length of the boat, adding a breaker and solenoid, and wiring switches. Expect 800 to 2,500 dollars in labor for a straightforward install, and 2,500 to 5,000 dollars or more when cable runs are long, the deck needs backing plates fabricated, or a dedicated bow battery is added. All-in, a new install with a mid-range unit commonly lands between 2,500 and 7,000 dollars parts and labor together.

Replacing an existing windlass. Swapping like for like, reusing the existing wiring and mounting, is much cheaper. Labor often runs 400 to 1,200 dollars if the old unit comes out cleanly and the bolt pattern matches. If the new unit has a different footprint, add deck work.

Solenoid replacement. The part is roughly 60 to 200 dollars, and labor is often one to two hours, so a solenoid job commonly totals 150 to 500 dollars. This is one of the best value repairs because it revives many dead windlasses.

Motor replacement. A replacement motor runs 300 to 900 dollars for common models, with labor of two to four hours, putting a typical motor job at 600 to 1,600 dollars. On some units the motor and gearbox come as an assembly, which pushes the part cost higher.

Gypsy or wildcat replacement. A new gypsy is roughly 150 to 500 dollars depending on brand and size, with an hour or two of labor, so figure 250 to 800 dollars. Order the exact chain standard.

Clutch service and rebuild. A seasonal clutch and electrical service runs about 150 to 400 dollars in labor. A full rebuild with a service kit of seals, bearings, and clutch parts runs 400 to 1,200 dollars depending on the unit.

Heavy cable upgrade. Rewiring with correctly sized 2 AWG to 2/0 cable, a new breaker, and clean terminations can run 500 to 1,800 dollars depending on the run length and how hard the cable is to route through the boat.

DIY vs hiring a pro

How much of this you take on yourself depends on your comfort with high-current DC electrical work and with cutting into your own deck. The mechanical service side, rinsing, clutch service, anode swaps, gypsy replacement, is well within reach for a handy owner with the manual and basic tools. These jobs are hard to get badly wrong, and doing them yourself keeps you in tune with the machine.

The electrical install side is where DIY gets risky. Sizing cable for voltage drop, placing a correctly rated breaker, wiring a reversing solenoid, and terminating heavy lugs so they do not overheat are all skills where a mistake is not just a non-working windlass but a fire risk. A windlass circuit carries enough current to start a fire from a single loose or undersized connection. If you are confident with marine DC systems and have the crimping tools for large lugs, a replacement install is doable. A first-time new install, cutting the deck and running new cable the length of the boat, is a job most owners are better off handing to a pro, both for safety and to keep the deck penetration watertight.

Bow work has a lot in common with other foredeck systems. If you are also weighing a bow thruster, our bow thruster install and maintenance guide covers the same battery-near-the-bow and heavy-cable questions that come up with windlasses, and the two projects are often done together.

Finding a windlass installer

The right installer for a windlass is a marine electrician or a rigger who has done the job before and can show you finished installs. When you talk to a candidate, ask how they size cable for voltage drop on your particular run, what breaker they will fit and where, whether they reinforce the deck with a backing plate, and how they keep the deck penetration watertight. A pro will have quick answers. Someone who shrugs at voltage drop is not the one for a high-current job.

Yacht Service Network makes this search free on both sides. Owners post the job and receive quotes from local marine electricians, riggers, and mobile marine techs, with no fee and no commission skimmed off the price. If you run a marine service business, listing on YSN is free and puts you in front of owners searching for exactly the work you do. We do not sit between you and the customer taking a cut. We connect you and get out of the way.

Prefer to manage everything from your phone? The YSN app puts job posting, quotes, and messaging with marine pros in your pocket, handy when you are standing on the foredeck looking at a windlass that will not budge.

Frequently asked questions

How long does an anchor windlass last?

A quality windlass that is rinsed with fresh water, serviced yearly, and never used to hold the boat at anchor commonly lasts 10 to 20 years. The motor and solenoid are usually the first major parts to need replacement. A neglected windlass in a salt-soaked locker can be seized and dead in five years. Maintenance is the whole difference.

Can I run rope-and-chain rode on any windlass?

Only on a windlass with a gypsy designed for combined rope and chain, sized to both your line diameter and your chain standard. The rope-to-chain splice has to pass cleanly over the gypsy and through the stripper. An all-chain gypsy will not grip rope, and a mismatched combination gypsy will jam at the splice. Match the wildcat, the rope, and the chain as one system.

Why does my windlass trip the breaker when I raise the anchor?

Usually the windlass is drawing more current than the circuit can supply, which points to one of three things. The windlass may be undersized for your ground tackle and straining to break out the anchor, the cable may be undersized so voltage drops and current climbs, or the anchor is genuinely stuck and the motor is stalling. Break the anchor free by motoring the boat forward over it rather than winching against a buried hook, and have the cable and windlass sizing checked.

Do I need a battery at the bow for my windlass?

Not always. Smaller windlasses on shorter cable runs work fine fed from the house bank with correctly sized cable. A dedicated bow battery makes sense on bigger boats with high-current windlasses and long cable runs, because it shortens the heavy-current path and holds voltage up during a hard pull. It adds cost and weight forward, so weigh it against simply running heavier cable.

Is a vertical or horizontal windlass better?

Neither is universally better. A vertical windlass keeps the motor below deck for a clean, protected install and grips chain well with its 180 degree wrap, but it needs a deep locker. A horizontal windlass keeps everything on deck for shallow lockers and easier motor access, at the cost of a weather-exposed motor and a lighter chain grip. Choose based on your locker depth and whether you want a clean foredeck.

How much does it cost to replace just the windlass motor?

In 2026 a replacement motor is roughly 300 to 900 dollars for common models, and labor is two to four hours, so a typical motor replacement lands around 600 to 1,600 dollars. On units where the motor and gearbox are a combined assembly, the part cost runs higher. Before replacing the motor, confirm the problem is not actually a failed solenoid or undersized cable, both of which mimic a dying motor.

Can I install a windlass myself?

Mechanical service and even a like-for-like replacement are within reach for a handy owner with the manual and the right tools. A first-time new install is a bigger ask because it involves cutting and reinforcing the deck, running heavy cable the length of the boat, and wiring a high-current circuit where a loose connection is a fire risk. Most owners are better off hiring a marine electrician for a new install and keeping the routine service in-house.

Bottom line

An anchor windlass is a simple machine asked to do a hard job in the worst location on the boat. Size it to at least three times your ground tackle weight, match the gypsy exactly to your chain standard, wire it with heavy enough cable and a proper breaker, and never let the boat hang on it overnight. Rinse it, service the clutch each season, and learn the manual override before you need it. Do that and it will lift your anchor for a decade or two without complaint. When it does need attention, the electrical side is where most failures live, and a good marine electrician is worth finding before the anchor is stuck on the bottom in a rising wind.