As the camping season comes to an end, it's tempting to simply park your RV and call it a day.

But a little preparation now can save you thousands of dollars in repairs next spring.

Freezing temperatures, moisture, pests, and dead batteries are some of the biggest threats to an RV during the winter months. Fortunately, with a few simple steps, you can protect your investment and ensure it's ready for your next adventure when warmer weather returns.

Here's our complete guide to winterizing and storing your RV.

Why Winterizing Your RV Matters

Water is one of the most damaging forces an RV owner can face.

Even a small amount of water left inside plumbing lines can freeze, expand, and crack pipes, fittings, faucets, or your water heater. Add months of inactivity, moisture buildup, and curious rodents, and your spring camping trip can quickly turn into an expensive repair project.

Proper winterization helps protect your RV from:

• Frozen plumbing
• Water damage
• Mold and mildew
• Battery failure
• Tire damage
• Pest infestations
• Roof leaks
• Appliance issues

Think of it as protecting your home away from home.

Step 1: Empty the Water System

Begin by draining every part of your fresh water system.

This includes:

• Fresh water tank
• Gray water tank
• Black water tank
• Water heater
• Low-point drains

Flush and rinse your holding tanks thoroughly before storing your RV.

Never leave waste sitting in the tanks over the winter.

Step 2: Bypass and Drain the Water Heater

Most RV water heaters should be bypassed before adding RV antifreeze.

Allow the heater to cool completely before draining it.

Skipping this step can waste several gallons of antifreeze.

Always consult your owner's manual for your specific model.

Step 3: Protect Your Plumbing with RV Antifreeze

After draining the system, pump non-toxic RV/Marine antifreeze through every water line.

Don't forget to run antifreeze through:

• Kitchen faucet
• Bathroom sink
• Shower
• Outdoor shower
• Toilet
• Washing machine hookups (if equipped)
• Ice maker (if equipped)

Pour a small amount into every drain to protect P-traps.

Important: Never use automotive antifreeze in your RV's plumbing system.

Step 4: Prepare the Battery

Cold temperatures are hard on batteries.

If possible:

• Disconnect the battery.
• Clean the terminals.
• Fully charge it.
• Store it indoors or connect it to a quality battery maintainer.

A neglected battery is one of the most common reasons RV owners experience problems in the spring.

Step 5: Protect Your Tires

RVs often sit in one place for months.

Before storage:

• Inflate tires to the recommended pressure.
• Park on wood or leveling blocks instead of bare ground when practical.
• Cover tires to protect them from UV exposure.
• Move the RV occasionally during long-term storage if possible.

Proper tire care can extend tire life and help prevent flat spots.

Step 6: Clean Everything

One of the best things you can do before storage is give your RV a deep cleaning.

Inside:

• Remove all food.
• Empty the refrigerator.
• Leave refrigerator doors slightly open.
• Vacuum floors.
• Wipe down surfaces.
• Remove toiletries and liquids that could freeze.

Outside:

• Wash the exterior.
• Clean the roof.
• Inspect roof seals.
• Wax if needed.
• Clean awnings before rolling them up.

A clean RV is much less attractive to insects and rodents.

Step 7: Keep Pests Out

Nothing ruins opening day faster than discovering mice have made themselves at home.

Inspect your RV for openings around:

• Plumbing
• Electrical lines
• Furnace vents
• Storage compartments

Seal gaps where appropriate and consider placing rodent deterrents in storage areas.

Avoid leaving pet food or snacks inside the RV.

Step 8: Cover and Store Your RV Properly

If your RV will be stored outdoors, invest in a breathable cover designed specifically for your type of RV.

Avoid using standard tarps.

They can trap moisture, damage paint, and cause mildew.

Whenever possible, store your RV:

• Under cover
• On a level surface
• Away from low-lying areas prone to flooding
• With slides retracted unless your manufacturer recommends otherwise

Our Winter Storage Checklist

Before walking away for the season, double-check these essentials:

✔ Drain all water tanks

✔ Bypass the water heater

✔ Pump RV antifreeze through plumbing

✔ Charge and disconnect the battery

✔ Inflate and cover tires

✔ Empty refrigerator and pantry

✔ Clean the interior and exterior

✔ Seal potential pest entry points

✔ Cover your RV

✔ Lock all compartments and doors

Spring Will Come Faster Than You Think

Taking a few hours to properly winterize your RV can save countless hours—and potentially thousands of dollars—in repairs later.

More importantly, it means that when spring arrives, you'll spend less time fixing problems and more time planning your next adventure.

At Roam & Harbor, we believe that dependable equipment and thoughtful preparation make every journey more enjoyable. Whether you're storing your RV for the winter or gearing up for your next road trip, we're here to help you travel with confidence.

Because every great adventure begins long before you turn the key.

Adventure Starts Here.