Onecall Roadside Repair Logo
Always On Call Same-Visit Repair Heavy-Duty Specialists GTA & Ontario

Get Back on the Road. Fast.

We fix it roadside so you don't lose the load. 24/7 mobile repair for semi-trucks, trailers and fleets across the GTA and Ontario's major highway corridors — technician dispatched the moment you call.

Heavy-duty Freightliner semi-truck with OneCall Roadside Repair branding on Highway 401 in daylight

🚨 Quick Emergency Dispatch Request

Stuck on the shoulder right now? Send your details and our dispatcher calls you back immediately — or just call/text above for the fastest response.

Skip typing exit numbers — this texts dispatch your exact Google Maps pin in one tap.

or fill out the form

Please enter your name and phone number.

Please enter your breakdown location or highway marker.

Please enter your unit number.

Please select an issue type.

Accepted Fleet Payment & Billing Methods

VisaMastercardInteracDirect E-TransferComdataEFST-ChekFleet OneNet-30 Corporate Invoicing
What Stranded Drivers Should Know

Before You Call — Have This Ready

The faster we know your situation, the faster a technician is rolling toward you.

1

Exact Highway Marker / Location

Kilometre marker, exit number, or nearest cross-street.

2

Unit # & Truck/Trailer Make

Have your unit number and make ready so we roll with the right parts and tools.

3

Specific Issue

Tire Blowout, Air Brake Leak, Computer Code/Regen, or Battery/Electrical.

2 min
Emergency Intake

Call or text connects you directly to a live dispatcher β€” no call trees, no hold music.

5 min
Technician Dispatched

Your location and issue are relayed to the nearest available mobile repair unit.

30–45 min
On-Site Arrival

Typical arrival window across the GTA and core Ontario corridors, day or night.

Heavy-Duty Only

Our Services

Dedicated exclusively to commercial semi-trucks, trailers, and heavy fleets — no passenger vehicles, no towing add-ons.

Mobile diesel mechanic performing engine diagnostics on a heavy-duty truck with hood tilted forward

Mobile Truck Repair

On-site engine, brake, suspension and powertrain repair for heavy-duty semi-trucks.

Learn More β†’
Technician servicing an open Thermo King reefer control panel on a trailer

Trailer & Reefer Repair

Landing gear, doors, lighting, air systems and Emergency Reefer Service Ontario-wide.

Learn More β†’
Roadside commercial tire and rim service, Commercial Tire Swap QEW

Tire & Blowout Repair

Rapid on-site mounting, balancing and blowout response, Commercial Tire Swap QEW.

Learn More β†’
Commercial vehicle OBD diagnostic tablet, DPF Regen Highway 400

Engine Diagnostics & Electrical

Dealer-level computer diagnostics, DPF Regen Highway 400, fault code clearing.

Learn More β†’
Stranded Driver Safety Protocol

What To Do While Waiting For Dispatch

Four steps that keep you and your unit safe on Highway 401, 400, QEW, or 407 until help arrives.

If the unit can still move safely, ease onto the paved shoulder or the nearest emergency pull-off rather than stopping in a live lane. Engage hazard flashers the moment you're stopped.

Set reflective triangles within 10 minutes of stopping β€” one about 3 meters behind the vehicle, and two more roughly 30 meters ahead and behind, walking along the shoulder facing traffic, never into the lane.

Put on a high-visibility vest before exiting the cab, exit on the side away from traffic, and wait behind the guardrail or well off the paved shoulder rather than standing next to the truck.

Have your exact highway marker or exit, direction of travel, unit and trailer number, and a description of the issue ready β€” this gets a technician routed to you faster and equipped with the right parts.

Quick Reference

Common Fault Code (DTC) Quick Lookup

Select a fault category to see what it usually means and how a mobile technician approaches it.

Select a fault category above to see what it usually means and how a mobile technician would approach it.

B2B / Fleet Accounts

Fleet Accounts & Corporate Maintenance

Guaranteed SLA Response, Preventative Mobile Fleet Inspections, and Net-30 Corporate Invoicing for logistics managers and fleet directors.

πŸ’Ό Inquire About Fleet Accounts
Dispatch Availability
24/7

Registered fleet accounts receive priority queue placement ahead of standard dispatch.

Driver & Fleet Resources

More Guides / Driver Hub

Top 5 Highway 401 Breakdown Hotspots: 45-Min Mobile Response

Read Guide β†’

Cold Weather Diesel Survival: Preventing Fuel Gelling on Ontario Highways

Read Guide β†’

Understanding DPF & DEF System Fault Codes: On-Site Mobile Regeneration

Read Guide β†’

Commercial Trailer Brake Lockups on the QEW: Roadside Release Techniques

Read Guide β†’

Essential DOT Yard Inspection Checklist: Avoiding Roadside Out-of-Service Orders

Read Guide β†’

Reefer Temperature Alarms on Hwy 407: Emergency Refrigeration Repairs

Read Guide β†’
View All 30 Guides β†’
Frequently Asked Questions

Common Questions From Drivers & Fleets

No. Onecall Roadside Repair is dedicated exclusively to heavy-duty commercial semi-trucks, commercial trailers, and fleet equipment β€” we don't service passenger vehicles or provide standard towing, truck sales, leasing, or rental.

Typical arrival windows across the GTA and core Ontario corridors run 30-45 minutes, depending on your exact location, time of day, and traffic conditions. Call as soon as you're safely stopped so dispatch can start routing a technician immediately.

Yes. Our mobile units carry dealer-level diagnostic equipment for forced DPF/DEF regenerations, ABS and air system fault tracing, and reefer refrigeration diagnostics, so most fault codes can be resolved without a shop visit.

Yes, registered fleet accounts can be set up with direct corporate Net-30 invoicing, and we accept major fleet cards including Comdata and EFS for roadside authorization.

Your exact highway marker or location, your unit number and truck/trailer make, and a description of the specific issue (tire blowout, air brake leak, engine code/regen, battery/electrical, etc.) β€” this lets us dispatch the right technician with the right parts on the first trip.

πŸ“ž Call Dispatch πŸ’¬ Text Dispatch