Heavy-Duty Truck Repair Services in Montreal

CM Montréal is a heavy-duty vehicle shop located at 540 Montée de Liesse, Saint-Laurent, serving Montreal and the greater Montreal area. We repair, diagnose, and maintain trucks, trailers, and flatbeds, and take care of complete fleet maintenance to reduce your downtime.

Heavy Truck Repair

Nine specialized technicians for every job: oil changes, insurance claims, powertrain, steering and body work. 97% of work done in-house.

Full Fleet Maintenance

Turnkey service to troubleshoot, maintain, repair, inspect and manage all documentation for your fleet. A long-term approach to maximize profitability.

Heavy Truck Transmission and Differential Repair

Maintenance and repair of transmissions and differentials by certified technicians. Arvin-Meritor distributor with warranty coverage.

Truck Fault Code Diagnostics and Repair

Expert diagnostics for complex electronic systems: engine, transmission, cab and accessories. Analysis and repair of all fault codes.

Webasto System Installation for Trucks

Installation, repair and maintenance of Webasto systems for the cab and cargo area. Quiet, efficient heating and air conditioning.

Heavy Truck Air Conditioning

Installation, diagnostics and repair of all types of heavy truck air conditioning systems, regardless of the manufacturer.

Charging and Starting System Repair

Diagnostics and repair of electrical systems, faulty circuits, grounds and charging systems. Warrantied repairs.

DPF, SCR and DEF System Repair

Specialists in aftertreatment (DPF), SCR and DEF systems. Maintenance, diagnostics and repair to keep your truck performing and compliant.

Brake and ABS System Repair

Brake and ABS system repairs for heavy trucks and trailers. Compressors, valves, reservoirs and electronic components.

Preventive Maintenance for Heavy Trucks (PEP)

Turnkey Preventive Maintenance Program (PEP) approved by the SAAQ. Exempt your vehicles from annual mechanical inspections.

A shop built for fleet managers

Every hour of downtime is costly. That's why 97% of the work is done right here at our Saint-Laurent shop: electronic diagnostics, heavy mechanical repairs, aftertreatment systems, brakes, transmission, and air conditioning. You avoid shuttling your trucks between different shops and get your units back on the road faster.

For fleet operators, we set up a preventive maintenance program (PEP) recognized by the SAAQ and provide complete documentation tracking for every unit. Also check out our shop or our SAAQ inspections.

Need service fast?

540 Montée de Liesse, Saint-Laurent, QC H4T 1N8