Zinc & Propeller Replacement · Pinellas County
Zinc anodes are the sacrificial metal that keeps galvanic corrosion off your shafts, props, and running gear. We inspect and replace them in the water, on schedule — and handle prop and gear swaps without a haul-out.
Why anodes matter
Galvanic corrosion is constant and invisible. Anodes are designed to be eaten first — so your expensive metal isn't.
Anodes corrode so your shafts, props, and struts don't. Once they're spent, the corrosion moves to the metal you actually care about.
Anodes are typically replaced around half-depleted. We check them on every visit and swap them before they stop protecting.
Damaged or fouled props and running gear serviced or swapped at the dock — no travel lift, no yard time.
Old and new anodes, and any gear work, photographed so you know exactly what was done.
What it is
Every boat with metal below the waterline is a slow battery. Dissimilar metals in seawater set up a small electrical current — galvanic corrosion — that eats away at the least noble metal in the circuit. Left unchecked, that's your shafts, props, struts, and rudders.
Zinc, aluminum, or magnesium anodes are bolted on to be the least noble metal in the system, so they corrode first and spare everything else. They only work while there's enough of them left. Once an anode is more than about half gone, its protection drops off fast — which is why a steady replacement schedule matters more than the price of the part.
We inspect your anodes on every dive, replace them in the water before they fail, and handle propeller and running-gear swaps at the dock — all documented, so the protection on your boat is never a question mark.
Zinc & prop service covers
Every anode checked for depletion and secure mounting.
Shaft, hull, trim-tab, and engine anodes swapped in the water.
Zinc, aluminum, or magnesium matched to your water and setup.
Fouled or damaged props cleaned, removed, or replaced.
Shafts, struts, and cutless bearings checked while we're down.
Fasteners and bonding contact points inspected.
Before-and-after photos of every part replaced.
A cadence set to how your boat actually wears anodes.
How it works
Tell us your boat and what you're running for anodes and props.
Anode count, type, and any prop work, priced clearly.
Replaced in the water and photographed as we go.
Before-and-after images and a note on what's protected.
More below the line
Soft and hard growth removed in the water, at your dock — running gear cleaned and documented on every dive.
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A full visual record of your hull, running gear, and anodes — for a survey, an insurance claim, or peace of mind.
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Phones, keys, props, tools — if it went over the side, we’ll go down and find it.
Learn more →Zinc & prop FAQ
Straight answers on timing, metals, and cost.
Precision beneath the waterline
Tell us your boat and your setup. We'll check your anodes, handle the gear, and keep the corrosion where it belongs — on the zinc.