Overview: Trailer Repair
Canadian trailers have a hard life. They sit under snow for months, then get dragged through brine, gravel and spring potholes. Salt goes after the wiring and grounds first, then the brake parts, the spring hangers and the frame. A trailer that spent the winter outside usually needs its bearings, brakes and lights checked before the first trip.
Provinces write the legal side. In Ontario, every trailer on a public road needs its own registration and plate. A trailer at or above a set gross weight also has to carry brakes that can stop and hold it. Many trailers here use electric brakes, which means a controller in the cab and a breakaway switch on the tongue.
Heavier rigs bring inspections. Ontario requires an annual safety inspection for most trucks and trailers over a set gross weight, done at a DriveON inspection centre. Pickups and trailers used only for personal purposes can be exempt.
Our listings show what each trailer shop states on its own website, from bearing repacks to inspections. The province and city lists lead to shops that serve your area, and spring is when they're busiest.
Cost of trailer repairs in Canada
Specify the trailer type before comparing quotes. A light utility or travel trailer and a commercial air-brake trailer need different equipment and pricing. Bearing budgets are per axle. Commercial-trailer labour is separate from light-trailer work.
| Service | Budget estimate | Scope and notes |
|---|---|---|
| Bearing repack and inspection | CA$175–250per light-trailer axle · Ask whether taxes are included | Two serviceable wheel positions; damaged bearings and hubs are extra.Confirm seals, brake adjustment and any mobile travel. |
| Travel-trailer workshop labour | CA$150–170per billed hour · Taxes extra | RV-style travel-trailer repair; parts and supplies separate.Confirm suitability and rates for utility or boat trailers. |
| Commercial-trailer workshop labour | CA$125–135per billed hour · Ask whether taxes are included | Heavy commercial trailer; quote the axle and brake configuration. |
| Electric brake assembly replacement | Get an itemized quoteper light-trailer axle | Pair of matched assemblies; state axle rating and brake size.Ask whether drums, bearings, seals, wiring and adjustment are included. |
| Commercial air-brake repair | Get an itemized quoteper defined axle repair | Specify the components being replaced and the axle configuration.Get a parts-and-labour total including wheel-end work and any seized components. |
| Commercial trailer inspection | Get an itemized quoteper inspection | Quote the required provincial program and trailer configuration.Confirm wheel removal, adjustments, certificate, reinspection and repairs separately. |
What changes the price
- Trailer type, axle count and weight rating
- Electric, hydraulic or air brakes
- Seized components, damaged hubs and mobile access
Ask before you book
- Is the price per wheel, per axle or for the entire trailer?
- Which seals, bearings, brake components and tests are included?
- What diagnosis or inspection time may be billed before I approve repairs?
Comparing offers
A bearing service or brake inspection does not include new brake assemblies unless the quote says so.
Frequently asked questions
Does my trailer need its own brakes?
Once it reaches a set gross weight, yes, and each province draws that line itself. Ontario's is in the Highway Traffic Act. Alberta, British Columbia and Quebec set their own lines in their vehicle equipment rules, so check the province where the trailer is plated. Gross weight means the trailer plus its load, so a light trailer can cross the line on moving day. If you run electric brakes, adjust the controller for each load.
Does my trailer need its own plate?
Yes. Every province expects a trailer on a public road to carry its own registration and plate, and homemade trailers count too. How long that registration lasts is up to the province. In Ontario, Alberta and Quebec, a personal trailer is registered once rather than every year. Keep the paperwork in the tow vehicle, and check the plate light along with the others before each trip.
Why do the lights never work?
Salt and a bad ground, almost every time. Brine creeps into the plug and turns the pins green, and the ground wire corrodes where it bolts to the frame. Clean both before you buy bulbs. A dab of dielectric grease in the plug helps it survive the next winter. If the lights still flicker, look where the harness runs along the tongue, because ice and road spray pull it apart there.
Do trailer brakes need servicing?
Yes, and winter is hard on them. Electric drum brakes have magnets and shoes that rust and wear, and a trailer parked on wet ground can seize its shoes to the drums. Test the breakaway switch and its battery at the start of every season. Check the controller in the tow vehicle too, since a bad setting feels like a brake fault. Have the brakes done with the bearings.
What inspection does a commercial trailer need?
A heavy commercial trailer needs a periodic safety inspection in every province, under that province's own program. Alberta and British Columbia run theirs as the Commercial Vehicle Inspection Program, and Ontario sends trucks and trailers to DriveON inspection centres. Pickups and trailers used only for personal purposes can be exempt. A pass earns a sticker, but it's a snapshot, not a maintenance plan.
