How to prepare your RV or travel trailer for winter
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Good Sam
“As winter approaches, preparing your RV for storage is a critical seasonal maintenance step. Preparing your RV for winter includes prepping your interior and exterior, plumbing, electric, engine, slide-outs, HVAC, awnings and choosing your storage location.”
You've chased sunsets, tackled highways, and made memories on the move—now it's time to park while you rest and re-energize for next season's adventure. But freezing temperatures, lingering moisture, and long periods of stillness can quietly take a toll while your RV sits idle.
That's why winterization is more than a checklist—it's a safeguard for your travel investment. Whether you're stowing a travel trailer or a Class A motorhome, this guide walks you through every step to ensure your RV emerges from winter in top shape.
Why Winter Storage Preparation Matters
Skipping winterization can wreck your RV. Here's why proper prep is critical:
Frozen water lines can burst and cause thousands of dollars in damage.
Pests and rodents chew wires and insulation.
Battery drain can leave you powerless when you're ready to roll.
Moisture buildup leads to mold, mildew, and warped interiors.
Just one overlooked detail can turn spring startup into a headache. That’s why it is recommended to get a pre-trip inspection to help identify problems early, making sure your RV is road-ready after a long winter break.
Step-by-Step Guide to Storing Your RV for Winter
Exterior Prep
Wash and wax your RV thoroughly, including the roof. Road salt and grime can corrode paint and seals if left unchecked.
Cover tires and windows using UV-protective covers to reduce wear from sun and snow.
Apply sealant to any cracked roof seams, vents, or windows to keep out moisture.
Interior Prep
Empty the fridge, pantry, and cabinets—rodents are drawn to crumbs.
Wipe down all surfaces and vacuum thoroughly.
Prop open doors to the fridge, microwave, and cabinets for airflow.
Use moisture absorbers (like DampRid or baking soda) to reduce humidity.
Plumbing & Water Systems
Drain all tanks—fresh, gray, and black.
Bypass and drain the water heater.
Pump RV-safe, non-toxic antifreeze into the plumbing system. Run it through all faucets, toilets, and showers until it flows pink.
Flush the toilet and showerhead too—don't skip hidden lines.
Even with the best prep, spring startups can catch you off guard. Good Sam's Platinum Plan offers support for unexpected breakdowns, but routine maintenance and winterization remain your responsibility.
to see how Good Sam has you covered, even after a long winter off the road.
If possible, store batteries indoors in a dry, room-temperature space.
Attach a trickle charger or battery maintainer to keep the voltage stable over winter.
Check charge levels monthly.
Generator and Engine Maintenance
Add fuel stabilizer to the generator's tank and run it monthly for 20-30 minutes under load.
Change generator oil and air filter before storage.
For Motorhomes: Run the chassis engine monthly to operating temperature.
Slide-Out Systems Care
Retract Completely: Bring all slide-outs in before storage.
Clean and Inspect Seals: Wipe down slide-out seals and inspect for cracks.
Lubricate Mechanisms: Apply appropriate lubricant to slide-out rails and gears.
Test Operation: Extend and retract each slide-out several times before storage.
Storage Location Tips
Indoor, climate-controlled storage offers the most protection—but costs more and may have limited availability.
Covered outdoor lots are a good middle ground.
If storing outdoors, invest in a breathable RV cover and avoid parking under trees or near drainage areas.
No matter where you store your RV, having reliable roadside assistance gives you confidence when it's time to move. Learn why Good Sam is ranked #1 for RV roadside assistance.
HVAC and Awning Systems
Air Conditioning Prep: Replace A/C filters before storage and cover exterior units with breathable covers.
Awning Care: Clean awnings thoroughly and ensure they're completely dry before retracting to prevent mold.
Vent Sealing: Close roof vents but use covers that allow airflow while keeping pests out.
Special Considerations for Travel Trailers
Hitch Maintenance: Grease the hitch ball and lock mechanism to prevent rust.
Tongue Jack Protection: Cover the jack and raise it off the ground with a stabilizing pad.
Weight Distribution: Ensure tires are evenly loaded; consider jacking up slightly to relieve pressure.
Wheel Chocks & Stabilizers: Don't skip them—winter winds can shift even parked trailers.
Unlike motorhomes, travel trailers often sit idle for longer stretches, making preventive steps more important.
Essential Products for Winterizing Your RV
Here's what you'll need to get the job done right:
Non-toxic RV antifreeze – Safeguards your plumbing system without damaging drinking lines.
Battery maintainer/trickle charger – Keeps voltage stable, prevents dead cells.
Tire covers – Protect against cracking, UV damage, and pressure loss.
Breathable RV cover – Shields your rig while letting moisture escape.
Moisture absorbers or dehumidifiers – Prevent interior mold and mildew.
Rodent repellents – Spray peppermint oil or place traps in storage bays.
Remember, even with careful prep, unexpected issues can still happen on the road. That’s why it’s smart to have a reliable roadside assistance plan in place—just in case you need a jump start, fuel delivery, or towing support.
Documentation and Insurance Considerations
Take photos of your RV's condition before storage for insurance protection. Contact your insurer about storage discounts.
Climate-Specific Strategies
Humid Climates: Use extra moisture absorbers and consider solar ventilation fans.
Dry Climates: Focus on UV protection—rubber seals and tires deteriorate faster.
High Wind/Snow Areas: Secure external accessories and ensure covers can handle weather loads.
Final Thoughts: Protect Now, Travel Confidently Later
Proper RV winter storage is an investment in peace of mind. It takes less than a day to prep your rig—and can save thousands in repairs. Whether you're winterizing a full-size motorhome or a weekend travel trailer, Good Sam has your back with 24/7 roadside support all year long.
When you're ready to break out of winter storage and hit the road again, you'll have the confidence that comes from proper preparation—and the security of knowing Good Sam's network of over 40,000 providers is ready to help if anything unexpected happens.
Ready for Your Next Adventure?
Need reliable coverage while storing—or taking one last trip south for winter? Join RVers who trust Good Sam to stay protected through every season—whether you're parked in snow country or chasing sunsets. From unlimited towing to the nearest service center to family coverage at no extra cost, keep your journey smooth with Good Sam.
FAQs
1.Should I disconnect propane tanks?
A: Yes. If your RV is in storage, turn off all propane valves and disconnect the tanks. Store them upright in a well-ventilated area, away from direct sunlight, heat sources, and ignition points. Always make sure there are no open flames or ignition sources nearby when disconnecting, and follow manufacturer guidelines for safe handling.
2. Do I need to cover my RV completely?
A: If storing outdoors, yes—but only with a breathable cover designed for RVs. Avoid plastic tarps, which trap moisture and cause mold.
3. Can I leave the batteries in the RV?
A: You can—but only if connected to a trickle charger and checked regularly. For colder climates, removing and storing indoors is safer.
4. Is indoor storage really worth the price?
A: If you live in a region with sub-freezing temps and snow, indoor storage helps preserve seals, paint, and tires—and reduces rodent risk.
5. Do I need to check on my RV during winter?
A: Yes. A monthly visit to inspect leaks, battery charge, or pest activity is strongly recommended—even if it's in covered storage.
6. What if I have problems during my first trip after storage?
A: Good Sam's roadside assistance covers you from storage facilities to campgrounds. With plans starting from basic coverage to comprehensive protection, including trip interruption assistance up to $1,200, you're covered for unexpected issues during spring startup trips.
