Cold, wet weather can be tough on trailers – especially if they sit unused for long periods. Frost can seize brakes, damp can corrode wiring, and unprotected metalwork can start to rust. Winter is when small problems often turn into expensive repairs.
The good news? A simple pre-winter routine can protect your trailer for months to come. This guide walks you through the essential steps to prevent corrosion, keep electrical components safe, and ensure your trailer is ready to work again in spring.
Clean and Inspect Before Storing
Before you put your trailer away for the winter, begin with a thorough clean. Dirt, salt and grime accelerate corrosion, particularly when temperatures drop and moisture is constant.
Essential cleaning steps:
- Wash the trailer from top to bottom, paying special attention to the underside, mudguards and wheel arches.
- Remove any built-up mud around the brakes, cables and axles.
- Clean inside enclosed or box trailers to prevent mould.
Once clean, carry out a full inspection:
- Tyres: Check tread depth, look for cracks, and inspect sidewalls for damage.
- Electrics: Test lights, look for exposed wiring, and clean 7-pin or 13-pin plugs.
- Brake cables/braked axles: Ensure cables move freely and shoes aren’t sticking.
- Grease points: Check removable parts and moving joints for any wear.
If you notice anything concerning – from stiff brakes to worn tyres – book your trailer in for Servicing before storing it. It’s easier and safer to address issues now than in the middle of winter.
Greasing and Lubrication Tips
Winter moisture and freezing temperatures can dry out, crack or stiffen unmaintained components. Proper lubrication prevents metal-on-metal wear and ensures the trailer is ready for reliable use in spring.
Areas that should be greased:
- Coupling head: Keeps hitch movement smooth and prevents early wear.
- Jockey wheel: Lubricate the screw thread, handle and pivot points.
- Hinges and door latches: Avoid sticking doors and frozen mechanisms.
- Moving joints: Including ramps, tilt mechanisms and winch handles.
Use a quality multipurpose grease suitable for outdoor use. Wipe away old, dirty grease before applying fresh lubrication – this avoids grit build-up, which can damage moving parts.
If you’re unsure which products to use, our team can advise during a routine Servicing appointment.
Battery Care and Electrical Protection
Many trailers have powered accessories such as electric winches, tilt-bed mechanisms or internal lighting. These systems often rely on a battery that can degrade quickly in cold weather if neglected.
Protect your trailer’s battery by:
- Fully charging it before storage to prevent deep discharge.
- Disconnecting the battery if the trailer won’t be used for months.
- Using a trickle charger to maintain charge safely over winter.
- Storing batteries indoors if possible, in a dry, frost-free location.
Electrical connectors, plugs and wiring should also be protected:
- Cover 7-pin/13-pin plugs with dust caps.
- Store the plug somewhere dry, not dangling against the trailer frame.
- Use dielectric grease to repel moisture on exposed connectors.
If you need replacement plugs, wiring loom components or winch batteries, our Spare Parts section carries a wide range of compatible parts.
Using the Right Cover or Shelter
Where your trailer sits over winter makes a big difference. Proper shelter helps prevent water ingress, UV damage, and tyre degradation.
Best storage options:
- Indoor storage (garage, barn or workshop):
Ideal for preventing frost, rust and moisture build-up. - Breathable waterproof covers:
These allow airflow while keeping rain out – reducing condensation inside the trailer. - Hard shelters or carports:
Great for protecting the roof and tyres while still allowing ventilation.
Avoid fully sealed plastic tarps that trap moisture and promote corrosion. Aim for airflow – not airtightness.
If possible, park your trailer on a firm, dry surface rather than soil or grass, which can hold moisture against the tyres and chassis.
Tyres and Jockey Wheel Positioning
Tyres suffer more in winter than most people realise. Low temperatures reduce pressure, and long-term storage in one spot can cause flat-spotting.
Before storing:
- Inflate tyres to their recommended pressure.
- Inspect sidewalls for hairline cracks or ageing rubber.
- Move the trailer slightly every few weeks to avoid flat spots.
- If practical, raise the trailer on axle stands to relieve tyre pressure entirely.
Jockey wheel positioning:
- Make sure the jockey wheel is fully retracted and locked.
- If storing long-term, support the chassis with stands so the jockey wheel isn’t bearing all the weight.
These steps save tyres and jockey wheels from unnecessary damage – and can prevent failures when you begin towing again in spring.
Quick Checks If You’re Still Using the Trailer
If your trailer stays in regular service throughout winter, perform this short checklist before each journey:
- Lights: Ensure all lamps work; cold weather makes wiring faults more common.
- Grease points: Cold temperatures can thicken grease – top up as needed.
- Coupling and breakaway cable: Check for ice, stiffness or wear.
- Snow and ice removal: Clear ramps, bed surfaces and the trailer roof before towing.
- Tyre pressure: Cold air drops pressure quickly; check often.
- Brakes: Test operation in a safe area before loading.
Winter towing demands more attention to safety – don’t assume that components which worked fine in summer will behave the same in freezing conditions.
Takeaways
- Clean, inspect and grease your trailer thoroughly before winter storage.
- Protect batteries and electrics from damp and frost to extend lifespan.
- Use breathable covers or indoor shelter to prevent corrosion and condensation.
- Inflate tyres, secure the jockey wheel and relieve weight where possible.
- Even if you use your trailer through winter, regular checks are essential.
If you need servicing, replacement parts or personalised advice, reach out via Contact or visit our Servicing and Spare Parts pages – we’re here to help keep your trailer safe and winter-ready.