About NoCo Diesel Services LLC

Welcome

Trusted Mobile Diesel Mechanics in Northern Colorado.

NoCo Diesel Services LLC was founded on a simple principle: diesel operators deserve expert, honest, and mobile service they can rely on—any time, anywhere. Based in Johnstown, Colorado, we provide 24/7 mobile diesel repair for heavy-duty trucks, trailers, and commercial fleets across Colorado, Wyoming, and Nebraska.

With over 15 years of hands-on industry experience, including work at major truck dealerships and certifications from top manufacturers, we bring deep technical knowledge and dealership-quality service directly to your site. Whether you're a fleet manager, owner-operator, or heavy equipment contractor, we work hard to keep your operation running smoothly with fast response times and precision repairs.

Welcome

Our Story

The owner and lead technician at NoCo Diesel Services has been immersed in diesel mechanics since the early 2000s. After more than a decade working for International Truck dealerships and receiving factory-level training through Kenworth, he saw a growing need for mobile diesel repair—especially for operators stuck on the side of the road or managing fleets across wide service areas.

With that experience, NoCo Diesel Services LLC was born. Built from the ground up as a fully mobile operation, the company was designed to serve customers where they are. From highway breakdowns to on-site fleet maintenance, we make diesel repair faster, simpler, and more efficient.

Our Background and Certifications

We are more than just mobile mechanics. We are trained diesel specialists with a strong foundation in advanced systems, including:


  • ASE Certification in Air Conditioning Systems
  • Factory Training through Kenworth
  • 10+ years of dealership experience (International Trucks)
  • 15+ years in diesel repair and maintenance


Our experience extends across all major makes and models of Class 6, 7, and 8 trucks, as well as trailers, heavy equipment, and diesel generators. We apply dealership-level diagnostics and troubleshooting methods in the field, providing a high standard of service without the hassle of towing or long wait times.

What Sets Us Apart

Choosing a diesel mechanic should never feel like a gamble. At NoCo Diesel Services, we bring professionalism, transparency, and proven expertise to every job. Here’s what makes us different:

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Mobile-First Operation

Our entire service model is built around mobility. We dispatch directly to your breakdown, lot, or worksite—fully equipped with the tools, scanners, and parts needed to get you back on the road quickly.

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24/7 Emergency Support

We operate around the clock because diesel breakdowns rarely happen during business hours. Whether it’s midnight on I-25 or early morning in a remote job site, we are ready to respond.

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Diesel-Only Focus

We work exclusively with diesel engines and systems. Our team understands the unique demands of commercial trucks, semis, and heavy-duty equipment. You’ll never get a generalist mechanic unfamiliar with your systems.

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Honest, Transparent Service

We prioritize clear communication, honest assessments, and real solutions. We don’t upsell. We don’t guess. We get it fixed right the first time.

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Fleet-Ready Programs

For growing businesses with multiple assets, we offer tailored fleet maintenance programs designed to extend equipment life and reduce downtime.

Our Services

We specialize in full-scope diesel repair, with a service list that includes:


  • Mobile diesel diagnostics and repair
  • Semi-truck repair
  • Trailer repair (brakes, axles, suspension, lights)
  • DOT inspections (mobile)
  • DPF and SCR regen and aftertreatment system service
  • Preventive maintenance programs (A & B services)
  • Electrical diagnostics and lighting repairs
  • Engine fault code resolution
  • Air brake and airline repairs
  • Heavy equipment and generator repair
  • Wheel seal and tire replacements

Who We Serve

Our clients include:

  • Fleet operators and managers
  • Owner-operators
  • Freight and logistics companies
  • Agriculture and construction businesses
  • Local governments and municipalities
  • Equipment rental and leasing companies

We serve a wide region across Northern Colorado, Southern Wyoming, and Western Nebraska.

Key service areas include: Johnstown, Fort Collins, Greeley, Longmont, Loveland, Wellington, Cheyenne, Laramie, Vail, Colorado Springs, Castle Rock, Brighton, Aurora, and surrounding areas.

Welcome

Committed to Uptime and Safety

We know that downtime costs money and compromises safety. That’s why we work quickly, efficiently, and with the highest standard of care. Our diagnostic capabilities let us identify and resolve issues that other mobile services often miss. From engine codes and aftertreatment problems to brake failures and electrical faults, we work to get the job done right the first time—without cutting corners.

Our goal is to become your trusted long-term diesel service provider, not just a one-time repair stop.

Get in Touch

Whether you need emergency roadside service, a DOT inspection, or a quote for a fleet maintenance program, NoCo Diesel Services LLC is ready to help. We respond quickly, operate 24/7, and provide fair, straightforward pricing.