Preparing Your Trailer for Winter: A Comprehensive Guide

Jun 20, 2025By Jeremy Przyhocki
Jeremy Przyhocki

Importance of Winterizing Your Trailer

As the colder months approach, it's crucial to prepare your trailer for the winter season. Proper winterization not only extends the life of your trailer but also ensures it's ready to hit the road when warmer weather returns. Neglecting this essential maintenance can lead to costly damages and repairs.

One of the primary concerns during winter is the potential for water damage due to freezing temperatures. Water left in tanks and pipes can freeze, expand, and cause significant damage. To prevent this, thorough preparation is necessary.

trailer winter

Inspecting and Cleaning the Exterior

Before storing your trailer for the winter, give it a thorough exterior inspection. Check for any cracks or damage that might allow moisture to seep in. Pay special attention to the roof, windows, and door seals as these are common areas where leaks can occur.

Once any necessary repairs are made, clean the exterior thoroughly. Remove dirt, debris, and any mold or mildew that might have accumulated. This not only keeps your trailer looking good but also protects the surfaces from corrosion over the winter months.

trailer cleaning

Protecting the Tires

Tires are often overlooked when it comes to winter preparation. However, they are susceptible to damage from cold weather and prolonged periods of inactivity. Inflate your tires to the recommended pressure and consider placing your trailer on blocks to relieve pressure on the tires and prevent flat spots.

Winterizing the Interior

The interior of your trailer needs as much attention as the exterior. Start by removing any perishable items and cleaning out all food storage areas to prevent attracting pests. Next, clean all surfaces thoroughly to avoid mold and mildew growth.

Consider using a moisture absorber inside your trailer to control humidity levels during storage. These products help prevent condensation, which can lead to interior damage over time.

trailer interior

Draining Plumbing Systems

To prevent pipes from freezing, it's crucial to drain all water systems in your trailer. Begin by draining the fresh water tank, then open all taps and valves to allow remaining water to escape. It's also advisable to use non-toxic RV antifreeze in the plumbing system after draining to provide extra protection against freezing temperatures.

Battery Care and Storage

Your trailer's battery requires special attention during the winter months. Remove it from the trailer and store it in a cool, dry place. Ensure it's fully charged before storage and check its charge level periodically throughout the winter.

If you decide to leave the battery in place, disconnect it from the power system to prevent discharge over time. A battery maintainer can be used to keep it charged without overcharging.

trailer battery

Covering Your Trailer

Finally, invest in a high-quality cover designed specifically for trailers. A good cover will protect your investment from snow, ice, and UV damage while allowing moisture to escape. Ensure it fits well and is securely fastened to withstand winter winds.

By following these steps, you'll ensure that your trailer is well-protected throughout the winter months, allowing you to enjoy worry-free travels when spring arrives again.