Contact us today877.688.6812

Contact us today877.688.6812

After Hours Construction / Truck Service: (800) 952-7767

After Hours Power Service: (877) 891-4181

After Hours Power Rental: (800) 736-8121

Power Systems Service

When failure is not an option…reliability counts

When you partner with Patten Power Systems, we provide you with reliable equipment management solutions to keep your power systems running at peak efficiency – regardless of make or manufacturer.

Patten sets the standard for parts availability and service support – from an extensive parts inventory to preventive maintenance, diagnostics, emergency service and rental equipment – all backed by highly skilled factory trained technicians who can anticipate your needs.

We are your power generation service and parts provider for:

Experienced Technicians. Because failure is not an option.

Patten Power Systems is your single, convenient point of contact with the largest number of factory trained power generation technicians northern Illinois and northwest Indiana. Our technicians:


Altorfer, Inc. Logo

Altorfer, Inc. is proud to announce the acquisition of Patten Cat effective May 9, 2018. We look forward to supporting all your equipment and product support needs by providing the quality products and excellent service that you have come to expect from the Caterpillar family. Please be aware that the Patten Cat website will close soon and all traffic will be pointed to Thank you for giving us the opportunity to partner together with you for continued success.