Storing an RV long-term isn’t as simple as pulling into a lot and handing over a key. The way you prepare your rig before it sits for weeks or months has a direct impact on how it comes out on the other side. Skipping prep steps leads to flat-spotted tires, dead batteries, cracked seals, pest infestations, and fuel system problems — all of which are avoidable with a few hours of work upfront.

Whether you’re wrapping up a season or just putting the RV away for an extended stretch, this guide walks you through everything you need to do before dropping it off at the storage facility.

Why Long-Term RV Storage Preparation Matters

An RV sitting idle isn’t just sitting. Rubber degrades, fuel breaks down, moisture finds its way in, and critters look for warm places to nest. Without proper preparation, what should be a simple storage period can turn into an expensive repair job before your next trip.

The good news is that most of the damage from improper storage is preventable. It just requires doing things in the right order before you lock up and walk away.

Step 1: Give It a Thorough Cleaning

A clean RV stores better than a dirty one. Food residue, organic material, and grime all attract pests and promote mold growth in enclosed spaces.

• Remove all food — even canned goods. Temperature swings during storage can be extreme.
• Clean the refrigerator, leave the door propped open, and place an open box of baking soda inside to absorb odors.
• Wipe down all interior surfaces, including cabinets, countertops, and the bathroom.
• Sweep and mop the floors. Remove any floor mats and let them air out or clean them separately.
• Wash the exterior with a gentle RV-safe cleaner. This protects the finish and gives you a chance to spot any damage before it gets worse during storage.

Step 2: Drain the Water System Completely

This is one of the most important steps, especially if temperatures in your area drop below freezing. Water left in pipes, tanks, or the water heater will expand and crack components.

• Drain the fresh water tank fully.
• Open all faucets and let them run until empty.
• Drain the water heater — turn it off first and let it cool before opening the drain valve.
• Flush the toilet several times and drain it as well.
• Use an air compressor to blow out any remaining water from the lines, or use RV antifreeze if you’re in a cold climate.
• Empty and clean the gray water and black water holding tanks.

Step 3: Treat the Fuel System

Gasoline and diesel degrade over time. Fuel left sitting in your tank and fuel lines for months can gum up injectors, clog carburetors, and cause hard-start or no-start problems when you return.

• Add a quality fuel stabilizer to the tank according to the product directions.
• Run the engine for 10–15 minutes after adding the stabilizer to ensure it circulates through the entire fuel system.
• If possible, top the tank off before storage to minimize the air space above the fuel, which reduces condensation and oxidation.

Step 4: Take Care of the Battery

A battery left uncharged for months will sulfate and lose its ability to hold a charge — or fail completely.

• If you can access the RV during storage, connect the battery to a maintenance charger (trickle charger) to keep it topped off.
• If the RV will be totally inaccessible, disconnect the battery terminals to prevent parasitic drain.
• Check the electrolyte levels in flooded lead-acid batteries and top off with distilled water if needed before storage.
• Clean any corrosion from the terminals before you disconnect or store.

Step 5: Protect the Tires

Tires are one of the most expensive components to replace, and long-term static storage is hard on them.

• Inflate tires to the maximum recommended pressure to compensate for slow leakage during storage.
• If storing for more than a few months, consider moving the RV occasionally to rotate the contact point on the tires, or use tire cradles to distribute the weight evenly.
• Keep tires out of direct sunlight when possible. UV degradation causes cracking even when the vehicle isn’t moving.
• Apply a UV-protective tire dressing after cleaning.

Step 6: Seal It Against Pests

Rodents, insects, and other pests can do serious damage to an RV’s wiring, insulation, upholstery, and HVAC systems. A little prevention goes a long way.

• Inspect the entire exterior for gaps, cracks, or openings around pipes, vents, and slide-outs. Seal any gaps with appropriate caulk or foam.
• Cover roof vents and exhaust openings with mesh or vent covers designed to keep pests out.
• Place rodent repellents or deterrents inside — peppermint sachets and commercial rodent repellent pouches work well without damaging the interior.
• Don’t leave anything food-related inside, including pet food, spices, or anything in cardboard packaging.

Step 7: Check and Seal the Roof and Exterior

Water intrusion is one of the most damaging things that can happen to an RV during storage. A small, unnoticed leak can cause extensive mold damage and structural rot while the vehicle sits.

• Inspect the roof seams, vent gaskets, and any caulked areas for cracks or gaps. Reseal anything that looks questionable with RV-specific lap sealant.
• Check window seals and door frames for deterioration.
• If using a cover, make sure it’s breathable to prevent moisture buildup underneath. A non-breathable tarp can trap condensation and make moisture problems worse.

Step 8: Prepare the Slides and Awnings

• Retract all slide-outs before storage. Leaving them extended puts unnecessary stress on seals and mechanisms, and exposes more surface area to the weather.
• Retract awnings fully. An extended awning can be damaged by wind, debris, or the weight of rain pooling on it.
• Clean and treat awning fabric with a UV protectant before rolling it up.

Choosing the Right Storage Facility

Everything you do to prepare your RV only matters if the place you’re storing it is actually worth trusting. When evaluating storage facilities, prioritize security, access, and the physical conditions of the lot.

At The Hideout Storage Park, we specialize in exactly this kind of storage. Our facility is designed to handle full-size RVs with space to maneuver, gated access for security, and a team that understands what it takes to protect your rig between seasons. Check out our full range of storage solutions to find the right fit for your situation.