winter trailer

A Basic Guide on Winterizing a Travel Trailer

Winterizing a Travel Trailer?

winter trailer


Now, that summer is gone, autumn is kicking in, and winter is just a few months away. Probably you cannot wait to go on a trip for the next spring or summer season on your favorite brand new trailer, but since you’re a newbie, you know next to nothing about winterizing a travel trailer. The comfort of your trailer is number one to ensure that your travel is smooth-sailing during your vacation or hiking trip. Even when you don’t need it for traveling, your trailer also requires preventive measures for the next time you use it after winter season’s over.


However, you have to make sure whether you need to winterize your trailer or not. Does winter season in your place is cold enough to warrant preventive measures on your trailer? If the temperature in your area does not go lower than 32 degrees Fahrenheit in more than a couple of times during the winter, then you do not need to winterize your trailer.


Here are safety measures and checklist to properly prepare your trailer for winter:


Safety Measures

Remember always to check your tires, wheel bearings, safe hitch, trailer lights, turn signals, side marker lights, brake lights, and brakes regularly. You also need to service your trailer at the start of the season to ensure that all is well and safe. Your safety is your utmost priority.



  • Make sure your trailer is spotless.

You need to clean up all things inside your trailer, especially your food regardless whether they are canned or not.

  • Refrigerators are turned off, and doors are opened.
  • You also need to remember to remove any propane tanks and batteries.
  • Make sure to cover your tires from the weather.
  • Park your trailer at a distance from the trees during winter to avoid damage from fallen branches or tree sap.
  • Last but not least, winter is long and ensure that you visit your trailer once in a while to do routine checkups.



  • First, make sure that your inline water filters (if any) are removed and bypassed before you start going to other steps.
  • Once you’ve removed and bypassed the inline water filters, drain the fresh water tank. You can do this by opening any valve in your trailer, let it run until all water is no longer drizzling out. This is an extremely important step to remove water that might freeze and burst your pipes.
  • Drain all water heater, remove the drain plug.
  • Drain all water in the trailer by stopping the water heater and low point drains. It’s best to open all taps when they’re pressurized to push all water out of the valves, toilet, showers, and tubs.
  • Remove a water filter (if any) and mount a filter bypass to ensure that your filter will not be ruined by the antifreeze.
  • Install antifreeze and don’t use automobile antifreeze for your trailer. Ensure that you know where the water pump is and disengage the pump suction. Then mount a fitting hose on the pump and insert one end of the hose to the antifreeze’s container.
  • After installing antifreeze, you can now open the bypass faucet to its bypass position. However, if you do not have one you might want to either fill the water heater with approximately six gallons of antifreeze, or you might want to disengage the lines from the back and mount an inline fitting to bypass manually.
  • Make sure to move your antifreeze around your system thoroughly by turning on the pump and running the antifreeze through the cold and hot side of all valves in the shower, sinks, toilet, hose, outside shower.
  • Now that it’s done make sure to pour antifreeze into the water heater. Turn on the bypass valve to its normal position.
  • Remove the pump and install the hose to the tank.
  • Pump antifreeze to the city water fills and the black tank rinse. Make sure to use a hand pump to prevent any damage to the check valve.
  • Make sure to clean all tubs, showers, and sinks when they are stained by antifreeze.
  • Do not forget to check whether all faucets are closed.


Make sure to take the necessary steps to winterize your travel trailer to avoid thousands of dollars of damage. The steps listed above are to serve as a basic guide, and if you’re confused on some of the steps, you might want to consult on instructional videos widely available online.


Winterizing a travel trailer might not be too expensive when compared to the cost you might incur if you do not winterize it. If you feel that you are too inexperienced, you might want to try and bring your travel trailer to your trailer dealer, and they will be happy to do it for you.


Well, what do you think about the steps listed above? Do you have more crucial information to add? Be sure to drop a word or two down below to help your fellow travel trailer owners.

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