ACCO Engineered Systems

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ACCO Engineered Systems, established in 1934, is a mechanical contractor with specialties in heating, ventilation, air conditioning, refrigeration, process piping, plumbing, building controls, engineering, construction, building automation and service. The company is a signatory to labor agreements with the Sheet Metal Workers International Association, United Association of Steam Fitters and Pipe Fitters, electricians and unions. The firm provides all HVAC, plumbing and temperature control contracting services to commercial, research and industrial facilities. ACCO Engineered Systems is headquartered in Glendale, Calif., and has branches in San Leandro, San Diego, Orange County and Sacramento, Calif., and Seattle.