Within 250 Miles of Houston, TX
Within 250 miles of San Antonio, TX
OnSite Diesel services most major heavy equipment brands, including Caterpillar, Komatsu, Volvo, and John Deere, with mobile field repairs, full in-shop capability for major work, and parts support to reduce downtime. Expect fast diagnostics, durable fixes, and maintenance that protects uptime in harsh operating conditions.
Based in Willis, TX, we serve customers across Texas within a 250-mile radius of Houston.
We offer a full range of services to support your equipment, from routine maintenance to complex repairs, helping minimize downtime and keep your operations running.
Caterpillar equipment support for high-hour production work
Komatsu equipment support for abrasive, high-cycle jobsites
Volvo equipment support when production can’t slow down
John Deere equipment support across crews, shifts, and jobsites
Kobelco equipment support for tough digging and uptime
JLG equipment support for safe, reliable lift performance
Hitachi equipment support for harsh sites and high hours
Develon equipment support for heavy use and production
Not every repair can wait, and not every repair belongs in the field. OnSite Diesel offers both, supporting the equipment behind the Texas industries we serve.
Our mobile field service trucks arrive on-site ready to diagnose issues, restore hydraulics, repair diesel engine systems, perform welding, and complete precision line boring. When a repair requires controlled conditions, specialized tooling, machining work, or a major component rebuild, our full-service shop is equipped to handle complex work efficiently.
This hybrid approach supports uptime while ensuring repairs are done right, whether your machine is down at the jobsite or needs deeper work in the shop.
If you run heavy equipment from Caterpillar, Komatsu, Volvo, John Deere, or most other major brands, OnSite Diesel is ready to help. Our mobile field service and full-service shop in Willis, TX support customers across Texas within a 250-mile radius of Houston.