1110 FM 1788, Ste. 66/68,

Midland, Texas, 79706


Mon - Fri: 9:00 - 17:30

Our Services

OnSite has been a trusted source for preventative maintenance, welding & fabrication, and vehicle repair in West Texas for years. 

Contact us today to inquire about our services!

Preventative Maintenance

Unforeseen vehicle/equipment trouble can be costly and take time. We keep your vehicle and equipment running at its best with preventative maintenance services. Let us keep you worry free! We service construction equipment, dirt equipment, hydraulic repair, cylinder repacks, and more.

Oilfield Maintenance Services

Fluid End swings, Fluid End Removal and Replacements, overheads, driveline, engine replacements and repair on Frac pumps, transmission swings, radiator R&R.

Oil Field Equipment Upgrades


 We fabricate and customize fenders, hydraulic pumps; power ends, Fluid ends, data vans, mobile parts rooms, radiators on frac equipment, and so much more! 


 Regardless of the make and model of your vehicle, OnSite Mechanical Services can diagnose and repair your problem and get you back on the road. Our technicians hold ASE Certifications and Factory Certifications from major companies, including CAT, Cummins, Volvo, Freight Liner, Mack International, and Mercedes.

Diesel Repair & Maintenance

OnSite Mechanical Services has trained technicians and the repair data at hand to make sure your diesel engine is ready to work on your time. 


We provide short term and long-term specialized project staffing for skilled labor. Give us a call today to see how we can help you.

Welding & Fabrication

Need something welded or fabricated? We can handle any welding or fabrication project with our experienced team. We have completed projects such as: pipelining, building equipment, designing large winch beds, tanks, and silos, conversion, shelving, test tank, mobile parts rooms for the frac industry, with the capability to do more


We repair light, medium, and heavy-duty vehicles. With over 30 years of combined shop experience, there isn’t a job we can’t handle! The following services are provided: clutch jobs, transmission replacement jobs, engine replacement, head, and injector jobs, rear end replacement, wheel seals, brake jobs, differential replacements.



Other Repairs

Windshield replacement on heavy and medium-duty vehicles.

Suspension replacement and repairs on light, medium, and heavy-duty vehicles.

Come Visit Our Shop


While most of our services require us to come to you, stop by our shop for maintenance on generators or heavy/medium/light duty trucks, a full-service oil change, repairs and oil change on compact construction equipment. 

Contact us!

Time is money

Our expertise will save you time and money. We are the ultimate one stop shop for all your maintenance,  welding & fabrication, and vehicle repair needs.


Location is everything

We are located off of 1110 FM 1788 in Midland, Texas. However, we service the needs of customers in all surrounding areas with the capabilities to expand.

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