How Often Should You Service Your Trailer?
How often should you service your trailer? Learn the ideal schedule, warning signs, and what a proper service covers from Urban Trailers.
7/24/20263 min read
A trailer looks simple-a chassis, some wheels, a hitch-but it takes a beating every time you load it up. Whether you're hauling building materials to a job site, towing a boat, or running a box trailer full of tools, regular servicing is what keeps your trailer safe, roadworthy, and out of the workshop for expensive repairs.
So how often should you actually get your trailer serviced? Here's what every trailer owner in Victoria should know.
The Short Answer
As a general rule, most trailers should be serviced every 6–12 months, or every 10,000–15,000km, whichever comes first. But the right interval for your trailer depends on three things:
How often you use it- a weekend camper trailer needs less attention than a tandem trailer doing daily work runs.
What you're carrying- heavy, repeated loads (tippers, scaffolding trailers, plant trailers) wear components faster.
Where you drive it- gravel roads, worksites, and coastal areas accelerate wear and corrosion.
If your trailer is doing regular heavy-duty work, it's worth having it inspected every 3–6 months rather than waiting the full year.
What Gets Checked in a Trailer Service
A proper trailer service isn't just a quick look underneath. At Urban Trailers, a full service typically covers:
Wheel bearings- repacked or replaced if worn, dry, or noisy
Brakes (electric or hydraulic)- pad wear, brake controller function, and adjustment
Suspension- springs, shackles, U-bolts, and leaf spring condition
Tyres- tread depth, uneven wear, correct pressure, and age (trailer tyres perish even with low use)
Chassis and welds- checking for cracks, rust, or fatigue, especially around the coupling and axle mounts
Coupling and safety chains- wear, lubrication, and correct engagement
Lights and wiring- plug connections, indicators, brake lights, and earth points
Jockey wheel and stands- smooth operation and structural integrity
Catching a worn bearing or a hairline weld crack during a service is a lot cheaper-and safer-than discovering it on the highway.
Signs Your Trailer Needs Servicing Sooner
Don't wait for the scheduled interval if you notice any of the following:
Uneven or excessive tyre wear
A humming or grinding noise from the wheels while towing
The trailer pulling to one side
Rust bubbling around welds or the chassis
Lights flickering or not working
Brakes feeling weak, delayed, or grabby
Visible sagging in the suspension when loaded
Any of these are signs a component needs attention now, not at the next scheduled service.
Why Regular Servicing Matters
Safety on the road. A trailer failure- a blown bearing, a snapped coupling, a brake fault-is dangerous for you and everyone around you, especially at highway speed or fully loaded.
Compliance. ADR-compliant trailers need to stay compliant. Worn brakes, non-functioning lights, or unsafe couplings can put you at risk of a defect notice or fine during a roadworthy check.
Protecting your investment. A well-maintained trailer holds its value and lasts significantly longer. Skipping services often means small, cheap fixes turn into expensive replacements-a $50 bearing service missed can turn into a $500 hub replacement.
Avoiding downtime. For trade and commercial trailers, an unexpected breakdown means a lost day of work. Scheduled servicing keeps your trailer ready when you need it.
A Simple Trailer Servicing Schedule
Service Interval What to Do Before every big trip or job Perform a quick visual inspection of the tires, lights, trailer coupling, safety chains, and tie-down points. Every 3 months (heavy use)Check wheel bearings, brakes, suspension, and axle components for signs of wear or damage. Every 6–12 months Book a full trailer service, including bearing maintenance, brake inspection, chassis check, tire condition, and lubrication. Every 2–3 years Carry out a comprehensive inspection of chassis welds, treat any rust, and overhaul the braking system if required.
Book Your Trailer Service in Pakenham
At Urban Trailers, we don't just build heavy-duty and custom trailers-we service and repair them too. Whether it's a routine bearing service, a brake inspection, or a full structural check, our team in Pakenham can get your trailer back to roadworthy condition.
Book a trailer service with Urban Trailers →
FAQs
How much does a trailer service cost? Costs vary depending on trailer size and what needs attention, but a standard service (bearings, brakes, and general inspection) is far cheaper than replacing a failed component or facing a breakdown on the road. Contact Urban Trailers for a quote based on your trailer.
Can I service my trailer myself? Basic checks like tyre pressure, lights, and visual inspections are fine to do yourself. Bearings, brakes, and structural checks are best left to a qualified trailer repairer to make sure everything meets ADR standards.
Do unused trailers still need servicing? Yes. Trailers that sit unused can develop flat-spotted tyres, perished seals, corroded brakes, and dry bearings. If your trailer has been sitting for more than 6 months, get it inspected before towing.
What happens if I don't service my trailer regularly? Skipping services increases the risk of on-road breakdowns, unsafe towing, non-compliance with ADR standards, and costlier repairs down the track.
