Guide
Fall detailing is what determines how your boat comes out of winter storage in spring. This guide covers washing, correcting the gelcoat, clearing interior moisture, and protecting the finish before shrink-wrap, so nothing sits and degrades during months of layup.
Updated for the 2026 season.
Whatever condition your boat is in when it goes under shrink-wrap is the condition it stays in for months. Staining, oxidation, and grime left uncorrected in the fall do not improve over winter, and a boat that goes into storage clean and protected comes out of it in spring needing far less work than one that goes in dirty and bare. The fall detail is the bookend to the spring detail, and skipping it just shifts the work (and the cost) to next year.
Start with a full marine wash to strip off the season's accumulated grime, waterline staining, and scum. This also reveals the true state of the gelcoat after a summer of use, which tells you what correction, if any, is worth doing before winter.
If the topsides picked up chalkiness or dullness over the season, fall is a good time to address it with oxidation removal or a polish. Correcting it now, then sealing it, means the boat comes out of storage already protected rather than needing that work done under time pressure at spring launch.
Once the gelcoat is clean and corrected, a fresh coat of wax or a marine ceramic coating gives it a barrier for the off-season. Under shrink-wrap the hull is not exposed to UV, but it is exposed to temperature swings and trapped condensation, and a protected surface handles that better than bare gelcoat.
A closed-up, wrapped boat sitting for months is exactly the environment mildew needs. Before storage, clean and fully dry vinyl, carpet, and stowage areas, wipe down lockers, and make sure nothing damp gets sealed in. A boat that goes into winter dry generally comes out of it smelling fresh instead of musty.
Give stainless a final polish and protective wipe so it is not sitting exposed to condensation all winter, and get any teak brightwork cleaned or given a maintenance coat if it is finished. Small attention here now saves a bigger job when the brightwork comes out of storage.
Booking a fall detail ahead of your haul-out date matters, since yards and detailers both get busy in the run-up to winter storage. Pair this guide with our spring detailing guide for the other bookend of the season, or set up one of our maintenance plans so both ends of the year are handled automatically.
Whatever is on the gelcoat when it goes under wrap sits there all winter. Grime, staining and oxidation left uncorrected in the fall are still there, often worse, in the spring, and a protected finish resists that months-long exposure far better than a bare one.
Yes. A closed-up, shrink-wrapped boat traps residual moisture, and any dampness left in vinyl, carpet or stowage over winter gives mildew months to establish itself. Starting storage dry and clean makes a real difference.
Yes, it is worth doing. A fresh layer of wax or a ceramic coating protects the gelcoat through the off-season and means less correction work is needed to bring it back in spring.
Before your scheduled haul-out date, with some buffer. Haul-out season is busy for yards and detailers alike, so booking a few weeks ahead helps ensure the detail happens before shrink-wrap goes on.
Ready to book a detail?
Call us at (312) 415-0582 or get a free quote.
Text or call for the fastest response. We service Cook County and the Chicago lakefront harbors, no hauling required.