Commercial Truck Services in Winston-Salem & the Triad

Keeping Your Fleet on the Road with Expert Mobile Service

When it comes to commercial truck maintenance and repair, Carolina On Site is the trusted choice for businesses across Winston-Salem and the Triad. We specialize in servicing Super Duty, Medium, and Heavy-Duty commercial trucks and vans, from F-250s to F-750s, as well as bucket trucks, dump trucks, shuttle buses, and more.

Our mobile service eliminates the hassle of taking your fleet off the road, ensuring quick, reliable repairs wherever you need them. With Senior Master Certified technicians trained in diesel and electrical systems, preventive maintenance, and emergency repairs, we help fleet managers minimize downtime and keep operations running smoothly.

Whether it’s brake service, alignments, tire replacements, or NC State and NCDOT inspections, we provide fast turnaround times and expert service so your commercial vehicles stay road-ready.

Our Services

Brakes for Commercial Trucks

Reliable brakes are critical for commercial trucks. We provide comprehensive brake inspections, pad replacements, and rotor resurfacing to ensure safety on the road.

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Drivability Issues & Engine Performance

Experiencing power loss, rough idling, or engine hesitation? Our team specializes in diagnosing and repairing drivability issues for commercial trucks to keep them running smoothly.

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Lighting & Wiring Repairs for Work Trucks

Proper lighting and electrical systems are essential for commercial trucks. We service headlights, turn signals, trailer wiring, and electrical diagnostics to keep your fleet compliant.

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Air Conditioning & Pneumatics

A well-functioning HVAC and pneumatic system is essential for driver comfort in commercial trucks. We handle A/C repairs, air system diagnostics, and compressor services. (Some repairs may require a shop visit.)

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Tires & Alignments for Commercial Vehicles (up to 22.5")

We provide tire replacements, balancing, and wheel alignments to keep commercial trucks on the road longer while improving fuel efficiency.

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Clutch & Transmission

For manual and automatic commercial truck transmissions, we handle clutch replacements, transmission flushes, and drivetrain diagnostics to keep your trucks shifting smoothly.May require shop visit.

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NC DOT Safety Inspections

Ensure your commercial truck meets all NC DOT safety and emissions standards with our certified inspections.

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Liftgate Repairs & Maintenance

For commercial trucks that rely on hydraulic liftgates, we provide liftgate inspections, hydraulic repairs, and preventive maintenance to avoid breakdowns.

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Hydraulic Hoses

We replace worn hydraulic hoses and repair leaks in commercial truck hydraulic systems, preventing unexpected failures.

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Service Area

Serving Winston Salem, the Triad, and Surrounding Areas

Why Choose Carolina On-Site?

Keeping your commercial trucks and fleet vehicles in top condition is essential for your business. When breakdowns or maintenance needs arise, Carolina On Site eliminates the hassle of taking your trucks to a shop—we come to you.

Our mobile mechanics specialize in on-site repairs and maintenance, handling everything from brake services and liftgate repairs to NC DOT safety inspections and oil changes. We proudly serve businesses, fleet managers, and owner-operators across Greensboro, Winston-Salem, and the Triad, ensuring your commercial vehicles stay road-ready and compliant.