Profile: Controlled Environment Structures, Inc. produces insulated panels, cleanroom wall systems, integrated environmental control systems, fans & fan filter units and doors for coolers & freezers. We serve food processing, cold storage, semiconductor, biotechnology, product test and wastewater applications. Our CES system 2000 cleanroom controller features a complete plug & play package of controls & sensors ready to wire into cleanroom air handling and conditioning equipment. Our capabilities include cold storage warehouses, walk-in coolers & freezers, cold storage doors and new & retrofit control systems.