About Us

VTI Energy Systems is an independent Enercept SIPS dealer for Northeast Wisconsin.

VTI Energy Systems was started as a division of Milbach Construction Services, Co. to fill a need for green building materials in the Fox Valley area.

Michael J. Milbach is the president of VTI Energy Systems.

Dale Retzlaff is the sales manager of VTI Energy Systems.

VTI Energy Systems mission is to support our builders and contractors with products to enhance or improve their project through the use of energy saving building products.

We pledge to provide the best products, at a fair price.  Along with trained technical support so that your project will be built with the highest quality possible.

Let VTI Energy Systems be your Enercept product source.  Build with vision, the most current technology around, and innovation found in today’s highly competitive market.  Let us help you build with the Enercept Advantage.  Building with quality and pride.

Ensure your customer satisfaction with VTI Energy Systems.