Call D & D at 603-373-0003 today for all of your repair needs.

Heavy and Medium Trucks Are A Specialty

International Trucks, Mack Trucks, Freightliner Trucks, Sterling Heavy and Medium Duty Trucks, Ford Super Duty Trucks and Peterbilt Trucks. Our ASE certified mechanics have extensive experience working with all heavy and medium truck makes and models for truck repairs, truck diagnostic services and truck preventative services.

Conveniently located just off Routes 95 and 33 in Greenland, New Hampshire, at D & D Truck & Auto Repair we understand the need to keep your truck running safely, smoothly and, most importantly, on the road.

Our mechanics have decades of quality experience with a variety of heavy and medium truck repairs and services including:

  • Engine Diagnostics;
  • Lube, Oil and Filters;
  • Full Brake Service, including Air Brakes, Hydraulic Brakes and Electric Brakes;
  • Wheel Seals;
  • Transmission Diagnosis and Repair;
  • Clutch Diagnosis and Repair;
  • Preventative Maintenance;
  • Drive Axle and Rear Axle Diagnosis and Repair;
  • Suspension and Drive Train Diagnosis and Repair;
  • Electrical Systems – Alternators and Starters;
  • Exhaust Systems;
  • Engine Rebuilds;
  • Fuel System Diagnostics and Repair; and
  • Air System Diagnostics, Components and Relay Valves and
  • Power Stroke Diesel Service and Repair.

Your Satisfaction is our SUCCESS!

Your trucks and fleet vehicles always will be in expert hands!


Contact or call D & D at 603-373-0003 today for all of your repair needs.
You will be glad you did because we stand behind all our services.

Your satisfaction is our SUCCESS!

  • “Dennis works on a large array of vehicle types, from domestic cars to oversized 15-ton crane units,” says Michael Kaichen, project manager with Granite State Glass. “Dennis is the only one you can bring anything to _ the guy can basically fix anything. One thing unique about him is that he’ll do the research, even on his personal time, to troubleshoot each piece of equipment he works on. He has an excellent attitude and talent that can’t be beat. I wouldn’t hesitate to recommend him to anyone. I definitely 100 percent trust him to do the best work every time.”

    - Michael Kaichen

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