CMT Diagnostics and Repair

Heavy-Duty Diesel Repair Shop & 24/7 Mobile Service in Panama City, FL

Your business depends on reliable trucks and equipment, and you need a team you can trust to keep them working. CMT Diagnostics and Repair delivers expert repairs, dependable workmanship, and flexible shop and mobile service helping you minimize downtime and stay productive.

about CMT Diagnostics and Repair

About us

With 20 years of industry experience, CMT Diagnostics and Repair combines the personal attention of a family-owned business with the technical expertise commercial operations demand. Count on straightforward communication, dependable workmanship, and service that puts your business first.

Panama City Beach
Lynn Haven
Callaway
Parker
Mexico Beach
Port St. Joe
Destin
Niceville
Fort Walton Beach
Crestview
Defuniak Springs
Mechanic performing bus repairs

Expert Repair Across All Leading Brands

Services

Our Commercial Truck & Equipment Services

Keep your commercial vehicles and equipment operating reliably with service built around your business needs. Our experienced team helps you stay ahead of unexpected problems, reduce costly disruptions, and maintain the performance your daily operations depend on.

Mechanic performing DOT inspection

DOT Inspection

An overdue DOT inspection or unresolved safety issue can put your truck at risk of violations and unexpected downtime. CMT Diagnostics and Repair helps commercial fleets meet state and federal safety requirements and stay road-ready.
Mechanic performing diesel repair services

General Diesel Repair

Truck losing power, shifting poorly, or experiencing mechanical problems? Our diesel mechanics at CMT Diagnostics and Repair provide heavy-duty truck repairs to restore reliability, improve performance, and minimize unexpected fleet downtime.
Mechanic performing preventive maintenance services on truck

Preventive Maintenance

Unexpected breakdowns can disrupt deliveries and increase fleet operating costs. At CMT Diagnostics and Repair, our truck preventive maintenance services help identify wear, maintain vehicle reliability, and reduce avoidable downtime.
Mobile diesel mechanic performing 24/7 truck repairs

Mobile Truck Repair

Truck trouble at your jobsite, fleet yard, or business location? CMT Diagnostics and Repair provides mobile truck repair in Panama City, FL, helping commercial operators address mechanical problems without unnecessary trips to the shop.
Mobile mechanic performing 24/7 roadside assistance services

Roadside Assistance

A truck breakdown can leave you stranded, delay deliveries, and increase operating costs. CMT Diagnostics and Repair offers heavy-duty truck roadside assistance in Panama City, FL, helping drivers address unexpected mechanical failures and get moving again.
Mechanic performing RV repair services

RV Repair

Engine trouble, shifting problems, or drivetrain vibrations can put your RV travel plans on hold. CMT Diagnostics and Repair provides RV powertrain repair in Panama City, FL, helping motorhome owners restore performance and get back on the road.
Mechanic performing heavy equipment repair service

Heavy Equipment Repair

Equipment breakdowns can delay shipments, interrupt loading operations, and bring material movement to a halt. CMT Diagnostics and Repair provides material handling equipment repair in Panama City, FL, helping businesses maintain dependable machinery and reduce costly downtime.
Diesel mechanic performing bus repair service

Bus Repair

Engine problems, transmission failures, and drivetrain issues can leave your bus out of service. CMT Diagnostics and Repair provides bus powertrain repair in Panama City, FL, helping commercial operators restore performance and reduce costly downtime.
Mechanic servicing a refrigerated trailer and its mechanical components.

Reefer & Trailer Repair

Trailer breakdowns, refrigeration problems, and roof leaks can delay deliveries and put valuable cargo at risk. CMT Diagnostics and Repair provides reefer and trailer repair in Panama City, FL, helping commercial fleets keep their equipment dependable and road-ready.
Technician welding and fabricating metal components for commercial vehicles or equipment.

Welding & Fabrication

Cracked brackets, damaged metal components, and broken mounting points can leave your equipment out of service. CMT Diagnostics and Repair offers in-shop welding and fabrication in Panama City, FL, helping commercial fleets restore damaged components and reduce equipment downtime.
Mechanic servicing a commercial truck as part of a fleet maintenance program.

Fleet Services

Keeping a commercial fleet on the road requires consistent maintenance and dependable repairs. At CMT Diagnostics and Repair, our fleet services in Panama City, FL, help businesses reduce unexpected downtime, manage repair needs, and maintain vehicle reliability.
Mechanic inspecting and repairing a truck lift gate and hydraulic components.

Lift Gate & Hydraulic Repair

A malfunctioning lift gate or leaking hydraulic system can interrupt loading operations and leave equipment unusable. CMT Diagnostics and Repair provides lift gate and hydraulic repair in Panama City, FL, helping commercial fleets restore equipment functionality and reduce downtime.
Technician inspecting a truck-mounted crane and its safety components.

Crane Inspections

A worn or malfunctioning crane can create serious safety risks and disrupt daily lifting operations. CMT Diagnostics and Repair provides professional crane inspections in Panama City, FL, with Fassi-certified inspection expertise to help identify concerns and maintain equipment reliability.
Technician inspecting and repairing commercial material handling equipment.

Material Handling Equipment Repair

Equipment breakdowns can delay projects, disrupt jobsite operations, and increase operating costs. CMT Diagnostics and Repair provides heavy equipment repair in Panama City, FL, helping contractors and equipment owners restore performance and reduce costly downtime.
Mechanic inspecting and repairing a hi-rail truck equipped for road and railway travel.

Hi-Rail Truck Repair

Hi-rail equipment problems can delay track maintenance and create serious safety concerns. CMT Diagnostics and Repair provides hi-rail inspection and service in Panama City, FL, with certified technician expertise to help maintain reliable road-rail vehicle operation.
Repairs

Commercial Truck & Equipment Repairs

Mechanical problems can quickly turn into costly downtime. Our experienced technicians use professional diagnostic technology to identify underlying issues and deliver dependable truck and equipment repairs that help prevent repeat breakdowns and get you back to work.

Testimonials

"CMT keeps our entire fleet of logging trucks running. They come out to our yard for preventive maintenance and never leave us stranded. Best mobile diesel mechanic in the Panhandle, hands down."
Marcus Tillman
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Fleet Manager
Tillman Logging Co. · DeFuniak Springs
"Broke down on I-10 at 2am with a bad fuel pump. CMT was there in 45 minutes and had me back on the road before sunrise. Fair pricing and honest work — that's rare these days."
Dale Breeder
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Owner-Operator
Breeden Trucking · Panama City
"They handle all our heavy equipment repair on-site. Excavators, loaders, our crane inspections — everything. Having one mobile mechanic who knows our whole fleet saves us thousands in towing and downtime."
Sarah Whitfield
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Operations Director
Whitfield Construction · Fort Walton Beach
"We switched to CMT for our DOT inspections and fleet maintenance a year ago. Zero roadside violations since. They're reliable, professional, and they actually show up when they say they will."
Ray Castillo
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Fleet Supervisor
Castillo Hauling · Crestview
"Our refrigerated trucks can't afford downtime. CMT does our PM program on-site and catches problems before they become breakdowns. They've saved my business more than once."
Mike Parsons
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Owner
Parsons Seafood · Port St. Joe
"I run a single Peterbilt and every dollar matters. CMT diagnosed a Check Engine light that three other shops couldn't figure out. Turned out to be a sensor — didn't try to upsell me. Trust them completely."
James Eckerd
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Owner-operator
Eckerd Hauling · Lynn Haven

Contact & Location

Get In Touch

24/7 emergency dispatch — we're ready when you need us.

Panama City Beach
Lynn Haven
Callaway
Parker
Mexico Beach
Port St. Joe
Destin
Niceville
Fort Walton Beach
Crestview
Defuniak Springs
Schedule Service
Orange truck with hood open