HP&D is a leading provider of electrical and mechanical testing and commissioning services in major computer centers across the country and around the world. Incorporated in 1982, our clients include mission critical facilities owners, commercial and industrial customers and government institutions, along with electrical utilities, distribution cooperatives, and municipalities.
Established in 1982, HP&D remains widely regarded as a leader in electrical and mechanical testing, commissioning, and engineering services. HP&D is a wholly-owned subsidiary of Patterson & Dewar Engineers, Inc., which has specialized in designing and evaluating vital power delivery infrastructures for electric utilities since 1947.
We offer electrical testing, electrical and mechanical commissioning, grounding system design and testing, engineering consulting, facility management support services, safety assessments, and training. We work on projects of any size from small commercial buildings to large state-of-the-art data centers, power plants and mission critical facilities.