Winterizing Your RV: What You Need to Know Before Putting It in Storage

Winter might be a time for hot cocoa and cozy nights—but for RV owners, it also means it’s time to put your rig into hibernation. Whether you’re a full-time traveler taking a break or a weekend warrior wrapping up for the season, winterizing your RV is one of the most important steps to protect your investment.

Freezing temperatures can cause serious damage to your plumbing, batteries, and seals if your RV isn’t properly winterized. But with a little preparation and the right know-how, you can rest easy knowing your RV will be safe all winter long—and ready to roll come spring.

Here’s everything you need to know before putting your RV into winter storage.

Step 1: Give It a Thorough Cleaning (Inside and Out)

Before you tuck your RV in for the season, give it a deep clean. You don’t want to come back in the spring to mold, weird smells, or surprise stowaways.

Interior checklist:

• Remove all food (yes, even sealed or canned items)
  
• Clean and defrost the refrigerator and freezer—leave the doors propped open
  
• Wipe down all surfaces, including countertops, cabinets, and floors
  
• Open drawers and cupboards to prevent musty smells
  
• Remove trash and vacuum thoroughly
  
• Take out any bedding, towels, or clothing
  

Exterior checklist:

• Wash and wax the exterior to protect paint from winter grime
  
• Clean awnings and make sure they’re fully dry before rolling them in
  
• Check for any cracks, leaks, or damage and make necessary repairs before storage
  

Step 2: Drain the Water System

Frozen pipes and tanks can lead to burst lines, cracked fittings, and expensive repairs. That’s why draining your water system is the most critical step in winterizing.

Here’s what to do:

1. Drain the fresh water tank
   
2. Empty and flush the gray and black holding tanks (add RV tank cleaner if needed)
   
3. Drain the water heater (make sure it’s turned off and cooled down first)
   
4. Open all faucets, valves, and low-point drains to let water out
   

Step 3: Add RV Antifreeze

Once the water is drained, it’s time to protect your plumbing system with non-toxic RV antifreeze (NOT the same as automotive antifreeze).

• Bypass the water heater using the bypass valve (this saves antifreeze)
  
• Use a water pump or hand pump to push antifreeze through the plumbing
  
• Run each faucet (hot and cold) until pink antifreeze comes out
  
• Don’t forget the toilet, shower, and outside shower if you have one
  
• Pour antifreeze into drains and the toilet bowl to protect the P-traps
  

If you’re not confident doing this yourself, most RV service shops or storage facilities (like ours!) offer winterization packages.

Step 4: Battery Care

Cold temps can zap battery life and performance, especially when left connected or sitting idle.

• Disconnect your house batteries or remove them entirely and store them in a warm, dry place
  
• Charge the batteries fully before storage
  
• If leaving batteries installed, consider using a battery maintainer or trickle charger
  

Don’t forget your engine battery (for motorhomes)—it needs the same care!

Step 5: Tire and Chassis Protection

Your tires take a beating sitting in one spot all winter.

• Inflate tires to the recommended PSI
  
• Park on solid ground or use tire pads/wood blocks to avoid direct contact with soil or asphalt
  
• Use tire covers to block UV rays and prevent cracking
  
• If possible, move the RV a few inches every few weeks to avoid flat spots
  

Step 6: Pest and Moisture Prevention

RVs are warm, dark, and quiet in winter—a perfect invitation for pests.

• Seal any entry points (wiring, plumbing, vents)
  
• Use rodent repellents or traps (natural options include peppermint oil or dryer sheets)
  
• Place moisture absorbers like DampRid or dehumidifier packs inside to prevent mold and mildew
  

Leave a few cabinets or drawers cracked open to improve airflow.

Step 7: Final Touches Before Storage

You’re almost there! Just a few final steps to button everything up.

• Turn off propane tanks and cover the valves
  
• Close all windows and vents tightly
  
• Cover the RV with a breathable, weather-resistant RV cover (especially if storing outdoors)
  
• Lock all doors and compartments, and double-check your security measures
  

If you’re using a professional RV storage facility, ask if they offer:

• Climate-controlled storage
  
• Battery charging
  
• Winterization services
  
• Routine check-ins or maintenance while your RV is stored
  

Wrapping Up

Winterizing your RV isn’t just a seasonal task—it’s a key part of protecting your investment and making sure your next adventure gets off to a smooth start. A well-winterized RV is one that stays dry, safe, and damage-free during the cold months. We recommend rv storage indianapolis.