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Testing & Commissioning

Patterson & Dewar offers comprehensive testing and commissioning of complex electrical components and system controls for electric utilities across the United States.

Additionally, our wholly-owned subsidiary, Hood-Patterson & Dewar (HP&D), is a full-service electrical and mechanical testing and commissioning firm providing 3rd-party services in data centers and mission critical facilities across the country and around the world. Visit for more information.

Questions? Talk to a P&D Expert Today! Contact Us