Profile: Diehl Equipment Co. Inc. is a full service refrigeration remodeling and new construction contracting firm. We focus on refrigeration installation, service new and refurbished equipments, remodeling, carpentry, controls, electrical, plumbing, and closures. We specialize in high & low voltage refrigeration control wiring operations. We install, remodel and repair computer controls for energy management, refrigeration, monitoring, leak detection, food safety, lighting control and environmental control.