Mollenberg-Betz, also known as MBI, is one of the leading mechanical refrigeration contracting firms in the United States. The company has been serving customers since 1910. It specializes in heating, ventilating and air conditioning equipment design, construction and installation services. The company has a staff of project managers, engineers, estimators, service technicians, foremen, welders, fabricators and computer-aided design specialists. Mollenberg-Betz offers design/build, industrial process piping, panel fabrication, plumbing, pipe assembly and project management services. The company provides compressor parts, filters, gauges, valves, floats, shaft seals, drier cores, switches, controls and pumps. Mollenberg-Betz s projects include Niagara Center Office Building and the Hauptman Woodward Research Center.

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