Underwater Hull Cleaning · Pinellas County
Drag is the most expensive thing on your boat — and the easiest to remove. We clean hulls in the water, at your dock, and send you photo and video proof of every dive. No haul-out, no yard bill, no guessing what's down there.
Why it pays
In warm Gulf water, growth returns fast. Staying ahead of it isn't maintenance for its own sake — it's the cheapest performance you can buy.
Even a thin film of slime adds drag. A clean hull moves the same throttle farther on less fuel — the savings show up on every outing.
Barnacles and growth quietly rob RPMs and top-end. Clean running surfaces give your numbers back.
Hard growth that's left to set in tears at antifouling when it's finally removed. A steady, gentle cadence lets the paint last its full life.
Props, shafts, and struts stay clean and balanced, and your anodes get checked while we're down there.
What it is
Underwater hull cleaning is exactly what it sounds like — your boat's bottom is cleaned while it stays in the water, by a diver, at your slip. There's no haul-out, no travel lift, and no yard bill. For most boats kept in Pinellas County, it's the difference between a hull that performs like new and one that's quietly dragging an extra coat of marine life everywhere it goes.
The growth comes in stages. First a slime layer — thin, slick, and building within days in warm water. Then soft growth: grass and early weed. Left longer, it hardens into barnacles and calcareous tube worms that bite into the paint. The longer the gap between cleanings, the more aggressive the removal has to be — which is why a steady, gentle cadence protects your bottom paint far better than waiting until the hull is fully fouled.
And every dive is documented. You get before-and-after photo or video plus a short condition note on your running gear, anodes, and paint — so you're never taking anyone's word for what's happening below your waterline.
Every cleaning includes
The entire wetted surface, bow to transom, including the boot stripe and waterline.
Propellers, shafts, and struts cleaned and checked for growth and balance.
Control surfaces cleaned so they move and bite the way they should.
Raw-water intakes and thru-hull fittings cleared so cooling and systems flow freely.
Anodes checked on every visit and replaced only when they're genuinely depleted.
Growth removed with the least aggressive method that works — to preserve your antifouling.
A short, plain-language note on what we found beneath the waterline.
Photo or video from the actual dive, sent straight to you.
How it works
Call or send a quick message with your boat, its length, and where it's kept.
You get a clear price and a recommended cadence — no surprises at the dock.
We clean in the water at your slip and film the work as we go.
Before-and-after media and a condition note land in your inbox.
More below the line
A full visual record of your hull, running gear, and anodes — before a purchase, an insurance claim, or just peace of mind.
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Anodes and running gear swapped in the water, on schedule — protecting your shafts and props from galvanic corrosion.
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Phones, keys, props, tools — if it went over the side, we'll go down and find it.
Learn more →Hull cleaning FAQ
Straight answers about cadence, paint, and what you actually get.
Precision beneath the waterline
Tell us your boat and where she's kept. We'll send a clear quote and a cleaning cadence built for Pinellas water.