Texas winters can be full of surprises. Some years, it feels like spring never left, while in other years, an Arctic blast sweeps across the state, catching everyone off guard. Because the weather is so different from one region to another, it’s tough to know exactly what winterizing your RV needs. The good news is that, with a few simple steps, you can protect your RV during the off-season and be confident it’ll be ready to go when camping season rolls around again.
This guide is for RVers who plan to park their rig for the winter — whether it’s in a driveway, a storage lot, or tucked under a shelter on family land.
Step 1: Drain the Plumbing
Water left in your RV is the number one cause of winter damage. Even in parts of Texas where freezes don’t happen often, it only takes one cold night to split a pipe or crack a fitting.
Start with your water heater. Make sure it’s turned off and cooled down, then drain it completely. If your RV has a bypass valve, switch it to prevent waste antifreeze from filling the heater. Next, empty the fresh water, gray, and black tanks. Once those are empty, blow out the lines with compressed air or pump RV antifreeze through the system. Many Texans prefer using antifreeze — it’s quick protection against a sudden freeze. Just remember, always use the pink RV-specific antifreeze. It’s designed for freshwater systems and is safe for your RV’s plumbing. Automotive anti-freeze, on the other hand, is toxic and not meant for RV use. Pour a small amount of RV antifreeze into each sink, shower drain, and toilet bowl to protect the traps from freezing and cracking.
Step 2: Disconnect Outside Connections
Anything left hooked up outside can freeze or weather faster than you think. Disconnect all your hoses, drain them, and store them away. Cover the water inlets on the RV so dust and bugs can’t work their way inside. Double-check that your sewer connections are tightly closed and sealed.
Step 3: Care for the Batteries
Batteries don’t like sitting unused. If you put your RV in storage without tending to them, you might come back in spring to find they’re dead. Give them a full charge before parking the RV. If you’re storing for more than a few weeks, disconnect them to avoid slow drain. In colder parts of Texas, like the Panhandle, it’s often safer to remove the batteries entirely and bring them inside. In milder areas, simply disconnecting and topping off their charge periodically will suffice.
Step 4: Inspect and Protect the Exterior
Before you lock the RV and walk away, give it a good once-over. Climb up to check the roof — even small cracks or loose sealant can let in water during winter rains or ice storms. Seal up anything suspicious. Give the RV a thorough wash and, if possible, apply a coat of wax to protect the finish from the winter sun.
Don’t forget the tires. Inflate them to the recommended pressure and cover them to protect against UV rays. If the RV is going to sit in one spot for months, consider placing it on leveling blocks or rolling it forward and back periodically to prevent flat spots.
Step 5: Prep the Inside
A few simple steps inside will prevent nasty surprises later. Start by removing all food — yes, even cans. Rodents can smell more than you think, and once they get inside, they’re tough to get out. Clean the fridge and freezer thoroughly and leave the doors slightly open to let air flow.
Place a few moisture absorber packs throughout the RV. Texas humidity doesn’t let up just because it’s winter, and you don’t want to come back to moldy cushions or musty curtains. Finally, remove bedding, towels, and clothing. Store them at home where they’ll stay fresh and ready for your next trip.
Step 6: Shut Everything Down
Turn off the propane at the tank. Check that all appliances are powered down — stove, oven, fridge, and microwave. Unplug electronics and flip breakers as needed. This keeps things safe and prevents unnecessary drain or damage.
Step 7: Keep the Critters Out
An empty RV looks like prime real estate to mice and insects. Walk around and look for tiny gaps where they might sneak in, especially near pipes or wires. Seal what you can—place pest deterrents in storage bays, under seats, and in cabinets (even overhead cabinets). If you usually have soft supplies, such as paper towels or napkins, stored inside, take them out. Rodents love them for nesting material.
A Few Regional Notes
Because Texas is so big, here’s how I’d adjust these steps depending on where you are:
- Panhandle and North Texas: You can count on freezing. Use antifreeze in the plumbing and consider removing the batteries completely.
- Hill Country and Central Texas: Ice storms aren’t rare, so using antifreeze is a smart moveo. Rural storage also means extra attention to rodent prevention.
- South Texas and Gulf Coast: Freezes don’t happen often, but humidity is always an issue. Moisture control and pest protection should be your top priorities.
Wrapping Up
Winterizing your RV in Texas doesn’t have to be complicated. Drain the water, protect the plumbing, take care of the batteries, give the inside a good clean-out, keep the critters out, and your RV will be ready and waiting when the warm weather rolls around again.
It’s not about doing everything the way northern RVers do — it’s about protecting your rig from the wild swings Texas weather can throw at us. A little time now saves a lot of repair bills later, and when spring arrives, you’ll be rolling out to your favorite campsite without a hitch.