Mobile RV Repair Expert Shares Tips for Storing Your RV Long-Term

Choose the Right Storage Location

The first decision is where to store your RV. Indoor storage or covered facilities offer the best protection from sun and weather, but if that’s not an option, look for a level spot with good drainage and shade.

A shaded, well-drained site keeps the undercarriage from sitting in water and prevents UV damage to the roof and seals. Avoid parking on grass or dirt if possible, since moisture from the ground promotes corrosion.

Security also matters. Fenced lots, gated entries, or storage close to home make a big difference. And if storms are common in your area, try to avoid parking under trees where falling branches could cause damage.

If you live in a hurricane or high-wind region, it’s worth investing in wheel chocks, tie-downs, and heavy-duty covers designed for storm resistance if you can’t evacuate your RV. These small precautions can prevent costly structural repairs later.

Clean and Protect the Exterior

Before parking for long-term storage, wash your RV thoroughly to remove dirt, grime, and salt air residue. I follow up with a wax or sealant to protect against UV damage.

This is the time to inspect every inch of your exterior. Check roof seams, window seals, and around your slide-outs for signs of cracking or separation. Reseal any weak points using the proper RV-grade sealant for your roof type. Cleaning and sealing now prevents leaks and interior water damage later.

The roof is especially important. Inspect and reseal weak spots around vents, skylights, and seams. Once the RV is clean and sealed, finish by protecting the exterior with a breathable cover designed to block sun, rain, and debris.

Avoid using plastic tarps, as they can trap moisture and damage paint. Instead, use an RV-specific cover that allows air circulation while shielding against UV rays and weather.

Prepare the Engine and Batteries

If your RV has a motor, take care of it before storage. Change the oil, top off fluids, and add fuel stabilizer. Run the engine and generator for a few minutes afterward to circulate the stabilizer.

This step prevents moisture buildup in the crankcase and keeps seals lubricated. For diesel engines, also consider treating the fuel with an anti-microbial additive to prevent algae growth in the tank.

For batteries, disconnect them or connect them to a trickle charger, a device that slowly keeps your battery charged while in storage. Heat can accelerate battery drain, so this step is crucial. If the RV will sit for several months, removing batteries and storing them in a cool, dry place can help extend their life.

I also recommend cleaning terminals and applying dielectric grease to reduce corrosion. Label cables before disconnecting to make reinstallation easy and error-free.

Protect the Plumbing System

Freezing isn’t a concern in Florida, but stagnant water can cause bacteria, odors, and mold growth. I drain the fresh, gray, and black tanks completely before storage. Running the pump briefly helps clear any remaining water in the lines.

If you plan to store longer than three months, flush your tanks with a mild bleach or vinegar solution. This discourages buildup and keeps sensors working properly. Keep all tank valves closed after draining to prevent pests or debris from entering.

This quick step keeps your plumbing system clean, fresh, and ready to use the next time you hit the road.

Maintain the Tires

Tires are one of the first things to suffer in long-term storage. Inflate them to the recommended PSI (pounds per square inch of air pressure), cover them to block UV rays, and, if possible, move the RV slightly every few weeks to prevent flat spots.

If storing for an extended period, consider placing the RV on leveling blocks or jack stands to take some weight off the tires. Avoid parking on asphalt or dirt for months at a time because those surfaces trap heat and moisture, both of which degrade rubber compounds.

Also, avoid parking where water collects. Long exposure to puddles can weaken the rubber.

I also recommend inspecting valve stems and sidewalls for cracks before and after storage. Replacing a tire is cheaper than dealing with a blowout on the road.

Safeguard the Interior

Inside the RV, the main enemies are moisture and pests. Here’s what I do before storage:

• Remove all food and clean thoroughly.
• Vacuum to eliminate crumbs.
• Prop open refrigerator and cabinet doors to allow airflow.
• Use moisture absorbers or a small dehumidifier to keep humidity in check.

You can also wipe down surfaces with a disinfectant cleaner to prevent mildew growth. For high-humidity areas, place a small fan on a timer to circulate air a few times a day. Air movement is one of the simplest ways to prevent mold.

This keeps your interior smelling fresh and prevents mildew from taking over.

Keep Pests Away

Rodents, ants, and roaches love quiet RVs. I inspect and seal gaps around vents, wiring, and access panels to block their entry. Natural deterrents like peppermint oil or dryer sheets can help, but I also recommend setting traps or bait stations nearby as an extra precaution.

For larger infestations, consider using steel wool or expanding foam in larger access holes. Avoid using spray pesticides inside your RV because they can leave strong odors and damage finishes. Instead, focus on prevention and early detection.

I’ve seen pest damage turn into some of the most time-consuming repairs, which is why I stress prevention over cleanup.

Cover and Vent Properly

When you cover your RV correctly, you’re not just protecting the outside but also maintaining a healthy interior environment. A good breathable cover reduces temperature swings and helps keep moisture from building up. Never use a plastic tarp. It traps humidity, can damage your paint, and often flaps in the wind, causing unnecessary wear.

If your storage area gets hot, slightly open roof vents with vent covers to promote airflow. This prevents stale air and condensation buildup inside. Good ventilation also discourages mold and keeps soft furnishings in better condition.

To go a step further, I crack roof vents slightly, with vent covers installed, to allow gentle airflow. This helps keep the air fresh and reduces the chance of mold or mildew while your RV is in storage.

Schedule Periodic Inspections

Even when stored, your RV shouldn’t be left unchecked. I recommend visiting at least once a month to:

• Walk the exterior and check seals.
• Inspect tire condition and pressure.
• Test battery charge.
• Look inside for pests or signs of moisture.

During these visits, I also suggest running the generator for 15 to 20 minutes and checking fluid levels. This keeps mechanical systems lubricated and prevents dry starts. A quick visual inspection can catch a small roof leak or electrical issue before it becomes a major repair.

These quick visits take only minutes but can prevent small problems from turning into major repairs that require mobile RV repair.

Extra Tips for Long-Term Storage

If you’ve followed the checklist above, your RV is well-prepared. But there are a few bonus tips I’ve learned over the years that can make storage even smoother.

• Prioritize storm prep: If a hurricane or tropical storm is in the forecast, secure your RV cover tightly and double-check that vents, windows, and roof seals are tight. If possible, move your RV to a safer, sheltered spot.
• Lubricate moving parts: Spray a light lubricant on hinges, locks, and stabilizer jacks before storage to keep them from sticking.
• Check propane tanks: Turn off propane supply valves, and if storing for several months, consider removing portable tanks and keeping them in a ventilated storage area.
• Document your prep: Take photos of your RV, both interior and exterior. It’s a quick way to remind yourself what was done and provides peace of mind if insurance ever comes into play.
• Protect electronics: Unplug or disconnect sensitive electronics. Use surge protectors and cover outlets to keep out dust and insects.

These extra steps may seem small, but they go a long way toward keeping your RV safe and ready to go when it’s time for your next trip.

Conclusion

Storing your RV properly comes down to preparation and consistency. A little effort now can save you from costly repairs later and keep your rig road-ready. I’ve seen firsthand what happens when RVs aren’t stored correctly, and prevention is always cheaper than repair.

By treating long-term storage as part of regular maintenance, you extend your RV’s lifespan, maintain its value, and ensure your next trip starts without stress. If you’re ever unsure about your setup, a quick visit from a mobile RV repair expert can confirm everything’s in good shape before you hit the road.

With the right steps, you’ll return to an RV that’s clean, dry, and ready for the next adventure. And if you ever need a professional eye on your rig, a trusted mobile RV repair service can make sure everything is in top shape.