Calm open water and a wooded shoreline at Lake Hartwell State Park

Boat Detailing Guide: Compare

How to Detail a Pontoon Boat

A pontoon boat is a floating living room. Instead of a gelcoat hull with a few seats, you get two or three aluminum tubes, a flat deck covered in carpet or vinyl flooring, a fence of painted aluminum panels, and more upholstered seating than almost any other boat its size. That changes what detailing means: there is less polishing and far more vinyl, flooring and metal.

Pontoons are a common sight on Lake Hartwell and the other Upstate lakes, often kept on a lift or in a slip all season, which brings its own problems: tube scum, pollen on the furniture, mildew under the cover. This guide walks through each part of a pontoon, what the builders' manuals say to use and avoid, and the order that keeps you from washing the same dirt twice.

The short answer

Detail a pontoon from the top down and inside out: clean the bimini, then the furniture vinyl with mild soap and a soft brush, then the console, rails and fence panels, then the carpet or vinyl floor, and finish with the aluminum tubes, removing lake scum while it is still wet. Skip bleach, harsh detergents, solvents and silicone dressings on the vinyl, dry everything thoroughly, and cover the boat only once it is dry.

Key points

  • Pontoon detailing is mostly vinyl, flooring and aluminum, so the right cleaners matter more than polishing skill.
  • Work top down and inside out, and leave the tubes for last so dirty rinse water does not land on clean surfaces.
  • Builders warn that harsh detergents, abrasives, bleach, solvents and silicone products can damage pontoon upholstery for good.
  • Carpeted decks need a thorough rinse and days of air drying; trapped water feeds mildew and odors.
  • Covers and ventilation do most of the work between details: dry seats, breathable covers, and no plastic tarps.

Anatomy

What You Are Actually Cleaning on a Pontoon

Tubes (pontoons)Aluminum, bare or painted
The floats. Usually bare or brushed aluminum, sometimes painted. They collect a brown or green waterline film in a slip and red clay at the ramp. Aluminum and tube care
Fence panels and railsPainted aluminum and anodized or stainless trim
The walls around the deck, often painted with graphics or decals, topped with rails, gates and cleats.
FurnitureMarine vinyl over foam
Couches, loungers, helm seat and sun pads, usually with storage under hinged seat bottoms. Cleaning boat seats
FloorCarpet or vinyl flooring
Marine carpet or woven or textured vinyl flooring, laid over the deck. Boat carpet cleaning
Console and glassFiberglass or plastic, acrylic or glass windscreen
The helm pod, gauges and a small windscreen, plus any fiberglass or plastic trim.
Bimini topAcrylic or vinyl fabric on an aluminum frame
The sunshade, often with a boot for storage. Crest's manual says its biminis are acrylic or vinyl fabric. Bimini top care

Order of work

The Order That Saves You From Washing Twice

  1. Empty the boat

    Take out life jackets, coolers, towels, toys and anything in the under-seat storage. Open every seat lid and storage hatch so the compartments can be cleaned and dried.

  2. Bimini and frame

    With the top up, brush off loose dirt, rinse, scrub with mild soap and a soft brush, and rinse until no soap remains. Wipe the frame tubes, which never get rinsed by rain on their upper side.

  3. Furniture

    Wash every seat, back and sun pad, working into seams and piping. Clean the storage compartments under them while the lids are open.

  4. Console, glass and rails

    Clean the helm, gauge faces and windscreen with products suited to each material, then rails, gates and cleats.

  5. Fence panels

    Wash inside and outside faces with mild soap. Rinse the panels before the floor so their runoff goes onto surfaces you have not cleaned yet.

  6. Floor

    Vacuum, then scrub carpet or vinyl flooring, rinse thoroughly, and extract or squeegee as much water as possible.

  7. Tubes last

    Everything above drains onto them, so clean the tubes at the end, then dry, protect and cover.

Furniture

Pontoon Furniture: The Biggest Job on the Boat

Pontoon seating is the part that ages fastest and costs the most to replace. Crest's owner's manual lays out a clear routine: wipe vinyl weekly with a soft damp cloth and towel dry; for general cleaning use warm water and a mild dish soap with a small soft-bristle brush, then rinse and towel dry; for dirt buildup, let a vinyl cleaner soak about ten minutes before brushing. It warns that harsh detergents, abrasives, bleach and solvents can damage the upholstery, and says not to use a common household all-purpose spray cleaner or any silicone-based product.

Sunscreen and bug spray deserve special attention on a party boat. Crest notes that suntan lotion and insect repellents can stain vinyl quickly and deteriorate the surface, and says to wash them off immediately with a mild soap solution. Sea Ray adds that air drying alone leaves moisture near piping and thread, which leads to mildew, so towel the seams.

Moisture inside the cushions is the source of most pink stains. The Chemical Fabrics and Film Association explains that soil organisms growing in wet foam can produce a pink dye that migrates through the vinyl and cannot be washed off from the surface. Crest's advice is to remove or cover cushions in rainy weather, since seams trap and absorb moisture, and its warranty excludes mildew and pinking.

Floors

Carpet and Vinyl Flooring

Vinyl flooring is the easier of the two. Crest recommends a medium-soft brush with warm water and a vinyl cleaner or mild soap, then a thorough rinse and dry. Textured vinyl holds dirt in its grain, so the brush does more than the chemical.

Carpet takes longer, mostly because of drying. MasterCraft's guidance for boat carpet is mild detergent and warm water or a household carpet cleaner, a thorough hose rinse, and leaving the boat uncovered for several days to air dry and prevent mildew and odor. On a pontoon, carpet is typically glued down over the deck, so water that soaks through has nowhere to go. A wet vacuum or extractor pulls out far more water than a towel, and a dry, breezy day makes all the difference.

Fuel is a floor hazard on any boat. Crest warns that spilled fuel damages vinyl and floor coverings; wipe spills around the fill immediately and wash the area.

Metal

Fence Panels, Rails and Tubes

Painted fence panels are cared for like car paint: mild soap, a soft mitt, a thorough rinse, and wax or sealant for protection. Avoid abrasive pads and solvents, which dull paint and can lift decals and graphics. For cleats, rails and similar hardware, Crest suggests a good chrome cleaner followed by paste wax to prevent corrosion.

For the tubes, Crest says to use a commercial hull cleaner and a brush for algae or scum, and stresses that growth is easier to remove before it dries. Bare aluminum tubes can be polished and sealed; painted tubes should be treated gently. Acid brighteners are a last resort for bare aluminum only, for the safety and finish reasons covered in the aluminum guide. If the boat stays in the water more than three months, Crest suggests asking your dealer about a bottom coating.

Bimini

The Bimini Top and Clear Panels

Crest's canvas guidance is to wet the fabric, scrub with a soft brush and mild soap, never store canvas damp, brush or sweep the underside every two weeks, lubricate zippers with paraffin and snaps with petroleum jelly, and never use detergent or bleach. Fabric makers vary on bleach: Sunbrella allows a diluted bleach and soap mix for stubborn mildew on its fabric, then a thorough rinse and air dry. Follow the tag on your top.

Clear plastic windows scratch easily. Crest says to flush them with clear water first, then use an appropriate window cleaner, and never wipe dirt from dry plastic or use abrasives.

Between details

Keeping a Pontoon Clean on the Lake

  • Cover it. Crest says a mooring or playpen cover, or furniture covers, protect against UV, leaf stains and pollen stains and cut cleaning time dramatically.
  • Skip plastic tarps. Crest warns they do not ventilate and can promote mold, mildew and pink staining.
  • Avoid docking under trees, which Crest says leaves dirt, leaves and debris on floors and vinyl.
  • Do not trailer with the bimini up or a mooring cover on; stow them as the builder directs.
  • Drain livewells and any water-holding compartments before leaving the ramp, and let them dry, the routine the Stop Aquatic Hitchhikers campaign recommends for every boat.

At the shop

Having a Pontoon Detailed at The Auto Show

Pontoons are quoted individually like every boat, and their length, the amount of seating, whether the floor is carpet or vinyl, and the condition of the tubes all affect the quote. The shop's boat detailing can cover vinyl seats and upholstery (cleaned with vinyl products, not bleach), metal and brightwork, glass and gauge faces, carpet or mats, storage compartments and the helm.

When you request a quote, include the make, model and length, whether it lives on a lift, in a slip or on a trailer, and what bothers you most: mildew, pink spots, tube film, stained carpet. The shop confirms in its reply where the work will happen and how it will be scheduled; ask us whether tube cleaning can be included for your boat.

Pontoon Surfaces: What to Use and What to Avoid
SurfaceClean withAvoidProtect with
Furniture vinylMild dish soap, soft brush, approved vinyl cleanerBleach, harsh detergents, solvents, silicone, abrasivesApproved UV protectant, covers
Vinyl flooringMedium-soft brush, warm water, vinyl cleaner or mild soapHarsh solvents, standing waterRegular rinsing, covers
CarpetMild detergent or carpet cleaner, thorough rinse, extractionLeaving it wet, covering while dampSeveral days of air drying
Painted fence panelsMild soap, soft mittAbrasive pads, solvents on decalsWax or sealant
Aluminum tubesHull cleaner and brush, while scum is wetAcid on painted or anodized finishesClear protectant or wax on bare aluminum
Bimini fabricMild soap, soft brush, cold to lukewarm waterDetergent, heat, storing dampWater-repellent retreatment per fabric maker

Get a Quote for Your Pontoon

Send the make, model and length, how the furniture, floor and tubes look, and where the boat is kept. We reply with what we recommend and how scheduling will work.

Common questions

Can I pressure wash my pontoon?

Be careful. Builders and vinyl makers warn against pressure washing upholstery, and high pressure can force water into seams, carpet backing and under decals. A garden hose with a nozzle, soft brushes and mild soap handle most of a pontoon. If you use a pressure washer on tubes or flooring, keep it low pressure and well back, and never aim it at seats or seams.

How do I get mildew off pontoon seats?

Start with mild soap, warm water and a soft brush, then an approved marine vinyl cleaner or mildew remover, rinsing well. Morbern allows diluted bleach for surface mildew on its vinyl, followed by repeated rinsing, but many builders say no bleach, so check your manual. Dry the seats fully and fix the moisture source or it will return.

How often should a pontoon be detailed?

Most owners benefit from a thorough detail before the first launch and again before storage, with rinsing and seat wiping after each trip in between. Boats kept uncovered, under trees or in a slip all summer need more frequent attention to the furniture and tubes than boats kept covered on a trailer.

Why does my pontoon carpet smell?

Water has soaked into the carpet or the deck beneath it and has not dried, so mildew and bacteria are growing. Rinse and extract the carpet, then leave the boat uncovered on dry days so it can air out for several days. If the smell returns quickly or the deck feels soft, the problem is deeper than the carpet surface.

Sources

  1. Crest Pontoon Boats Owner's Manual (Chapter 6 Maintenance; Trailering; Winterization Storage), Crest Marine (https://crestpontoonboats.com/media/4ohfekn2/cpb-ownersmanual.pdf), accessed October 2026
  2. 2027 Boat Owner's Manual (Boat Cleaning: Carpet, Upholstery), MasterCraft Boat Company (https://www.mastercraft.com/media/e4dlqy5k/mcb_my2027_owners_manual_web_05-22-26-1.pdf), accessed October 2026
  3. Vinyl Maintenance Tips, Sea Ray (https://www.searay.com/us/en/blog/vinyl-maintenance-tips), accessed October 2026
  4. Care and Cleaning of Morbern Vinyl Coated Fabrics, Morbern (https://morbern.com/wp-content/uploads/2017/07/Care-Cleaning-of-Morbern-Vinyl-Coated-Fabrics.pdf), accessed October 2026
  5. Mold and Mildew: An Overview, Marine Upholstery, Chemical Fabrics and Film Association, hosted by Morbern (https://morbern.com/wp-content/uploads/2017/07/Mold-and-Mildew-An-Overview-on-Marine-Upholstery.pdf), accessed October 2026
  6. Clean Sunbrella Marine Canvas, Sunbrella / Glen Raven (https://www.sunbrella.com/clean-sunbrella-marine-canvas), accessed October 2026
  7. Clean Drain Dry: How You Can Help, Stop Aquatic Hitchhikers! (https://stopaquatichitchhikers.org/prevention/), accessed October 2026

Boat detailing is quoted per boat, so this guide does not list boat prices. Product directions and warranty terms come from the manufacturer: follow your boat builder’s care instructions where they differ from general advice here.