Siemens DDC systems

G&R Controls is a building automation systems contractor with experience in high-efficiency HVAC systems, serving building owners, consulting engineers, and mechanical contractors since 1977. The company has four locations—Sioux Falls, Rapid City, Fargo, and Bismarck—and is a Siemens Solution Partner. It provides service for temperature controls, mechanical, and hydronic systems, with 24/7 on-call emergency support.

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building automationenergy managementHVAC servicehydronic systems maintenancepreventive maintenanceTesting and Balancing