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Truck & Heavy Duty Repair Shops in Ajax, ON

Find trusted truck & heavy duty repair services in Ajax. Compare prices, read reviews, and book online.

✓ Verified Shops ✓ Online Booking ✓ Real Reviews
Express Truck Repair
Ajax • ≈ 9 km
EX
Express Truck Repair
270 Monarch Ave Unit #3, Ajax, ON L1S 2G6, Canada, Ajax
★ 4.4
61 Google reviews
Response ≈ 15 min • $$$ • Quotes free
Truck & Heavy Duty Repair Truck MechanicDiesel Truck Mechanic
📞 (905) 239-4477 • Free quote • Verified
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GKJ Services
Ajax • ≈ 2 km
GK
GKJ Services
285 Hunt St, Ajax, ON L1S 3K9, Canada, Ajax
★ 4.1
14 Google reviews
Response ≈ 36 min • $$$ • Quotes free
Truck & Heavy Duty Repair Truck MechanicDiesel Truck Mechanic
📞 (416) 821-6929 • Free quote • Verified
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Avg reply 42m
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Ajax customer reviews

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Verified Reviews for Truck & Heavy Duty Repair
★ ★ ★ ★ ★

“Great experience as i m going there from last 2 years and all are very professional”

gurparam ghumaan • Truck & Heavy Duty Repair at Express Truck Repair, Ajax
★ ★ ★ ★ ★

“Syed the best guy ever always fast and always there when i need help”

Abdul Hakim • Truck & Heavy Duty Repair at Express Truck Repair, Ajax
★ ★ ★ ★ ★

“Thanks for your great, friendly assistance. 5 star service. 👌👈”

MR VALAVAN • Truck & Heavy Duty Repair at GKJ Services, Ajax
★ ★ ★ ★ ★

“Great service , my truck was repaired properly in under 30 minutes. The invoice came in way under the initial estimate. I will definitely be back”

Jajbeer Singh • Truck & Heavy Duty Repair at Express Truck Repair, Ajax
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Ajax Pro – last 30 days
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Find a Best Truck & Heavy Duty Repair in Ajax, ON

Boommar lists 2 verified mechanics in Ajax. Compare real reviews, response times, pricing bands, and open bays — then book online.

Common Causes for Commercial Truck Repairs

Consistent heavy payload hauling and towing stress
High engine hours and extreme high-mileage drivetrain wear
Diesel Particulate Filter (DPF) and DEF emission system failures
Heavy-duty air brake component degradation and air leaks
Complex electronic sensor and multiplex wiring malfunctions
Extreme winter weather operating stresses and cold starts

Signs Your Commercial Truck Needs a Mechanic

Check Engine, STOP, or Emission System warnings on the dash
Noticeable loss of turbo boost, engine power, or climbing EGTs
Frequent forced DPF regeneration cycles or restricted exhaust
Unstable air pressure readings or rapid air loss when parked
Rough shifting, slipping clutch, or harsh transmission engagement
Abnormal tire wear patterns indicating suspension or alignment failure

Truck & Heavy Duty Repair Services Available

Diesel Engine Overhauls

In-frame and out-of-frame major engine rebuilds

Heavy Drivetrain Repair

Commercial clutch, driveline, and transmission replacements

Air Brake Systems

Air compressors, valves, air lines, and brake shoe replacements

Diesel Emission Systems

DPF baking/cleaning, EGR coolers, and DEF system diagnostics

Commercial Vehicle Inspections

Provincial safety certifications (CVIP)

Commercial Trailer Repair

Air suspension, lighting, roll-up doors, and landing gear repair

Truck & Heavy Duty Repair Tips

Perform strict, documented daily pre-trip and post-trip inspections
Maintain rigorous preventative maintenance schedules to avoid DOT violations
Address emission system warnings immediately before the engine derates
Keep detailed service records organized for compliance audits
Monitor tire pressure daily to prevent blowouts and uneven wear
Check air tanks daily for moisture buildup and drain them regularly

Frequently Asked Questions

What is the hourly shop rate for heavy-duty mechanics in Ajax? +
Heavy-duty commercial shop labor rates typically range from $130 to $180+ per hour, depending on the specialization and equipment required.
Do mobile truck repair units charge a call-out fee? +
Yes, emergency mobile mechanics standardly charge a call-out fee (often $100-$200) plus a minimum 2-hour labor charge for on-site services.
How often is a CVIP safety inspection required for commercial trucks? +
Most commercial trucks and trailers require a provincial safety inspection annually, although specific classifications require semi-annual checks.
Can you legally and safely drive a truck in derate mode? +
No, derate mode is designed by the ECM to protect the engine from catastrophic failure. You should only drive to the nearest safe repair facility at reduced speed.

Truck & Heavy Duty Repair in Nearby Cities

Toronto Ottawa Mississauga Brampton Hamilton London Markham Vaughan

Other Services in Ajax

Auto Mechanic Diesel Truck Mechanic Truck Mechanic Oil Change & Lube Brake Services Tires & Wheels Auto Detailing Auto Body & Paint

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