Winter Guide

How to Winterize Your Caravan: Complete Guide

Learn how to winterize your caravan with our complete step-by-step guide. Essential tips for preparing your caravan for winter storage.

April 18, 2026
11 min read
Punt Caravan Parking Team
Covered boats stored in marina for winter maintenance

Winterizing your caravan is one of the most important maintenance tasks you'll perform each year. As temperatures drop and the camping season ends, properly preparing your caravan for winter protects your investment from costly damage caused by frost, moisture, and pests.

Whether you're storing your caravan at a professional facility like Punt Caravan Parking in Costa Brava, Spain, or in your own driveway, this comprehensive guide will walk you through every step of the winterization process.

📑 What You'll Learn

  • Water system winterization
  • Battery maintenance and storage
  • Exterior protection
  • Pest prevention
  • Interior preparation

Step 1: Water System Winterization

The water system is particularly vulnerable to frost damage. Water expands when it freezes, which can burst pipes, crack pumps, and destroy fittings. Here's how to protect your caravan water system:

💧 Complete Draining Procedure

  1. 1
    Turn off water supply and disconnect from mains
  2. 2
    Open all taps (hot and cold) to drain the system
  3. 3
    Drain the hot water heater – release pressure first, then drain
  4. 4
    Drain the fresh water tank and waste water tank completely
  5. 5
    Flush toilet and drain cassette toilet

⚠️ Important: Use Non-Toxic Antifreeze

After draining, add caravan-specific antifreeze to the system. Pour it through all taps and the shower until it flows through. Never use automotive antifreeze – it contains toxic chemicals.

Step 2 & 3: Battery & Pest Prevention

🔋 Battery Maintenance

  • Fully charge before storage
  • Disconnect negative terminal first
  • Use a trickle charger/conditioner
  • Store in a frost-free location if possible
  • Check monthly and top up charge

🐭 Pest Prevention

  • Remove ALL food and perishables
  • Clean food crumbs from all surfaces
  • Place rodent bait stations inside
  • Seal any entry points
  • Leave doors open to air out periodically

🏠 Interior Preparation Checklist

  • Vacuum all floors and upholstery
  • Leave cabinet doors open for ventilation
  • Remove curtains and wash
  • Place moisture absorbers throughout
  • Empty and clean fridge; leave door ajar
  • Remove valuables and important documents

Need Help Winterizing?

Let our expert team at Punt Caravan Parking help prepare your caravan for winter storage. We offer full winterization services in Costa Brava, Spain.