Best Cleaning Products for Boats and RVs After Storage

Josh Summerhays • December 15, 2025

After months in storage, your boat or RV is probably ready for a deep clean before hitting the road or water again. Dust, grime, and even mildew can build up during the off-season, but with the right products and a simple cleaning process, you can get your vehicle looking like new.


Here’s a breakdown of the best cleaning products to use after pulling your boat or RV out of storage:


Step 1: Exterior Wash


Product Recommendation: Meguiar’s M5032 RV/Marine Gel Wash


This cleaner is designed specifically for fiberglass surfaces, making it ideal for both boats and RVs. It lifts grime, algae, and residue without stripping wax or sealants.


Why it’s essential: Your vehicle's exterior can accumulate dirt, bird droppings, and even sap during storage. A gentle but effective wash helps protect the paint and finish.


A few essential maintenance checks before storage can reduce buildup and save time when it comes to cleaning later.


Step 2: Mold and Mildew Removal


Product Recommendation: Star brite Mildew Stain Remover


Formulated for marine and RV use, this spray targets stubborn mildew stains, especially on vinyl, canvas, and seat cushions.


Why it’s essential: Even in covered storage, moisture can sneak in and lead to mildew. Quick treatment prevents damage and musty odors.


Preventing mildew starts during storage, and taking the right steps ahead of time can make post storage cleaning much easier.


Step 3: Interior Surfaces


Product Recommendation: Thetford Premium RV Cleaner


A safe, all-purpose cleaner for RV countertops, appliances, and bathrooms.


Why it’s essential: Interior dust and grime build up even when the doors are shut. This cleaner is tough on messes but gentle on surfaces.


Step 4: Windows and Mirrors


Product Recommendation: Invisible Glass Cleaner by Stoner


Perfect for streak-free cleaning on boat windshields and RV windows.


Why it’s essential: Crystal-clear windows improve visibility and aesthetics. Plus, it removes hazy buildup left behind by storage.


Step 5: Tire and Trim Care


Product Recommendation: 303 Tire Balm and Protectant


Protects rubber and plastic from UV rays and helps restore faded trim.


Why it’s essential: Tires and exterior trim often dry out or discolor over time. Conditioning them helps extend their lifespan.


Step 6: Wax and Surface Protection


Product Recommendation: Gel-Gloss RV Wash and Wax


Cleans and waxes in one step, adding a protective layer against sun and rain.


Why it’s essential: Protective waxing after a clean helps your RV or boat look great and stay clean longer.


Store With Confidence at Simply Storage Idaho


Keeping your boat or RV clean after storage starts with choosing the right products, and the right facility. At Simply Storage Idaho, we offer secure, accessible storage solutions to keep your vehicle safe between adventures. Off season storage plays a big role in how much cleaning and maintenance your boat or RV needs before the next trip.


Ready to store or retrieve your RV or boat? Call or visit Simply Storage Idaho to learn more about our flexible storage options today.

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