Top 10 Maintenance Tips Every Trailer Owner Should Know

They say, “A stitch in time saves nine,” and when it comes to trailer ownership, there’s no truer advice. 

Taking the time to perform regular maintenance and address minor issues promptly can save you from costly repairs, legal headaches, and safety hazards down the road. Routine checks, from tightening a loose lug nut to sealing small leaks, not only prevent catastrophic failures but also preserve your trailer’s resale value and keep it roadworthy. Small efforts today—like replacing a worn brake pad or inspecting your tires—can prevent a cascade of problems such as dry rot, mold, or mechanical breakdowns. 

Beyond cost savings and legal compliance, proper upkeep ensures peace of mind, letting you enjoy every journey with confidence that your trailer is safe, reliable, and ready for the road.

To help you stay ahead of costly repairs and unexpected breakdowns, here are the top ten maintenance tips every trailer owner should know: 

• Electrical System
  
  • 1. Inspect Wiring Regularly: Check all visible wiring for fraying, cracks, or damage, especially near the hitch and light connections. Apply dielectric grease to connectors to repel moisture and prevent corrosion.
  • 2. Test All Lights Before Every Trip: Ensure brake lights, indicators, running lights, and reverse lights (if fitted) are working correctly. Faulty lights are a safety risk and can lead to fines or legal issues.
    
• Mechanical & Waterproofing
  
  • 3. Lubricate Moving Parts: Keep hinges, latches, and surge brake components (if applicable) well-lubricated to ensure smooth operation and prevent parts from seizing.
  • 4. Seal Gaps and Cracks: Inspect the roof, seams, and joints annually for gaps or cracks. Re-seal with a quality marine-grade or RV sealant to prevent water ingress, rot, and interior damage.
  • 5. Check the Brake System: Regularly inspect brake pads or shoes, brake fluid levels (for hydraulic systems), and ensure the breakaway cable is in good condition and securely attached to the tow vehicle’s frame.

• Tyres
  
  • Maintain Correct Tyre Pressure: Check tyre pressure before each trip using a reliable gauge and inflate according to the manufacturer’s recommended PSI. Incorrect pressure increases wear and blowout risk.
  • Inspect Tyres for Wear and Damage: Look for uneven tread wear, sidewall cracks, or embedded objects. Make sure tread depth is sufficient for safe towing.
  • Carry a Spare Tyre and Jack: Always travel with a properly inflated spare tyre and the necessary tools, including a jack and lug wrench, in good working condition.
    
• Hitch & Towing Connection
  
  • Grease the Hitch Ball: Apply heavy-duty, all-purpose grease to the hitch ball to reduce friction, prevent coupler wear, and minimise noise during towing.
  • Verify a Secure Hitch Connection: Perform a pull test by raising the trailer tongue slightly after coupling to ensure it’s securely locked. Attach safety chains in a criss-cross pattern and connect the breakaway cable before setting off.

While regular maintenance is key year-round, seasonal conditions bring their own challenges—here’s a quick checklist to help you prepare.

Summer Prep ☀️

• ☐ Check tyre pressure more frequently (heat increases PSI)
  
• ☐ Inspect tyres for cracks, bulges, and excessive wear
  
• ☐ Test all lights and electrical connections
  
• ☐ Check wheel bearings and lubricate where required
  
• ☐ Inspect brakes for wear and overheating signs
  
• ☐ Reseal roof joints and seams to prevent dust and water ingress
  
• ☐ Ensure ventilation points are clear and unobstructed
  

Winter Prep ❄️

• ☐ Check battery condition and charge (if fitted)
  
• ☐ Inspect wiring and connectors for moisture or corrosion
  
• ☐ Re-check seals, especially around doors and windows
  
• ☐ Lubricate hinges, latches, and hitch components
  
• ☐ Check brake performance and fluid levels
  
• ☐ Inspect tyres for flat spots or pressure loss
  
• ☐ Cover or store the trailer in a dry, sheltered area if possible
  

Pro Tip

A few minutes spent on seasonal checks can prevent breakdowns, extend component life, and keep your trailer road-legal all year round.