Whether you are looking for a turnkey Design/Build installation or a competitive bid on a project designed by others, Hoffmann Brothers is the HVAC and mechanical service contractor that can get your job done on time and within budget. Hoffmann Brothers is a family owned business with over 40 years of experience in the Greater St. Louis Metropolitan Area. We are a full-service merit shop specializing in design/build, commercial heating and air conditioning repair and installation, refrigeration, pipe fitting, sheet metal fabrication, commercial maintenance, controls and facility automation and energy conservation. We have the in-house engineering resources to design projects specifically tailored to meet your needs and the most experienced installers and managers in the metropolitan area to successfully complete your project. St Louis Missouri Mechanical Contractor Hoffmann Brothers - HVAC | Mechanical Contractor | Commercial Heating & Cooling | Roof Top Units | Mechanical Engineering | Air Conditioning | Design Build | Chillers | Refrigeration | Pipe Fitting | Sheet Metal | Installation| Repair | Preventative Maintenance | Boilers | Unit Heaters |Hot Water Heater | Control & Facility Automation | Indoor Air Quality | Cooling Towers | Pumps | Energy Conservation | St Louis, Jefferson, St Charles, Madison, St Clair.