About Semi Service LLC
Semi Service LLC handles diesel engine repair, fleet maintenance, and mobile service calls throughout the Greeley, Colorado area. The shop works on commercial diesel equipment and brings mobile technicians to customers rather than requiring all work to happen on-site, which helps owner-operators and fleet managers minimize downtime. Service coverage extends 15 miles from the main location, reaching Windsor, Johnstown, and surrounding communities within that radius. Call (970) 353-6680 for diesel service.
Gallery
Our Services
Mobile Service
Fleet Maintenance
Diesel Engine Repair
Diesel Specialist
Commercial & Fleet
Customer Reviews
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Verified Customer
Google Review
Top notch mechanics! Very knowledgeable, good price, highly recommend. Thank you Fred, Robert and crew.
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Verified Customer
Google Review
Great people quickly solved my problem found replaced and repaired my trailer fast turnaround time
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Verified Customer
Google Review
Fixed our semi-trailer(patched the roof). Fast and adequate price.