Boat Blister and Osmosis Repair in Stockton, California

Boats kept in the water can develop blisters below the waterline, small bubbles in the gelcoat caused by moisture working into the laminate. Left alone they spread and weaken the hull. Sergio's Boat Spa repairs blisters and osmosis for Stockton boat owners.

Boat hull below the waterline prepped for blister and osmosis repair in Stockton at Sergio's Boat Spa
Boat hull below the waterline prepped for blister and osmosis repair in Stockton at Sergio's Boat Spa
Boat hull below the waterline prepped for blister and osmosis repair in Stockton at Sergio's Boat Spa

How we fix blisters

We open and grind out each blister, let the area dry out properly, then rebuild it with new material and fair it smooth so the hull is solid and watertight again. Done right, the repair stops the moisture and restores the strength of the laminate.

Catch it early

A few small blisters are an easy fix. A hull full of them that has been ignored for years is a much bigger job. If you are seeing bubbles below the waterline, send a photo and we will tell you honestly how far along it is and what it needs.

We come to you in Stockton

Drop the boat at our Stockton shop on South Lincoln Street, or get a free dockside estimate at Village West, Buckley Cove, Ladd's, Paradise Point, RiverPoint Landing, Lincoln VIllage, and across the Delta. Owner operated, fully insured, more than 2,000 boats since 2017, and every boat quoted on what it actually needs, never by the foot.

Boat hull below the waterline prepped for blister and osmosis repair in Stockton at Sergio's Boat Spa

Get a free same day quote in Stockton

Send a photo of your boat and we will get you a free same day quote with a firm price and a firm timeline. Tap the Call now button or use the quote form to get started.