• Princeton University Neuroscience Building

    D&B Engineering designed a solution that was able to meet very strict fan efficiency and sound requirements in this state-of-the-art building. D&B designed and configured units incorporating all of the university's sound, performance, and laboratory requirements. These units include exceptionally efficient multiple fan arrays, 4" perforated sound walls, integral and bypass steam coils, energy recovery wheels, energy recovery coils, and double-jacketed humidifiers.View More

  • Colgate Palmolive

    D&B provided magnetic-bearing water-cooled chillers, condenser water pumps, and variable frequency drives to replace Colgate-Palmolive’s outdated, energy consuming HVAC equipment. Colgate-Palmolive’s annual energy savings totaled $283,898 and D&B assisted them in receiving a $224,526 incentive from New Jersey’s Clean Energy Program.View More

  • Immaculate Heart Academy

    Immaculate Heart Academy is a prominent all girls private school in Washington Township, NJ.

    The boiler plant in the school dated back to the 1950’s with one of the boilers completely inoperable thereby leaving the school limping along on the remaining boiler which had no back-up. This condition persisted through the 2011 -2012 winter season
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  • Mack Cali

    D&B Engineering provided replacement equipment that met the very tight roof space restrictions. We were able to utilize McQuay Skyline “variable aspect ratio” rooftop units with custom duct opening to fit and eliminate the need for costly adapter curbs, roof steel, or duct transitions.
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  • Exchange Place

    D&B Engineering supplied energy-efficient Daikin HVAC equipment into multiple floors in the prestigious, 30-floor structure that is 10 Exchange Place, in Jersey City, New Jersey. Dakin Self-Contained Air Conditioning units were chosen for their design flexibility, durable construction, and quiet operation, as well as low installation and operating costs.
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D&B Engineering

D&B Engineering of New Jersey, Inc. is the exclusive New Jersey and New York representative for some of the industry’s most successful brands of HVAC products, including:
  • Daikin: The world's largest manufacturer of HVAC systems and equipment
  • Fulton: High efficiency condensing boilers
  • Lennox International: Commercial heating and cooling solutions
  • Tecogen: Natural gas engine driven chillers and CHP products
  • Islandaire: New construction and replacement PTAC’s and Water Source Heat Pumps

D&B Engineering provides world class heating, ventilating, air conditioning and power generation equipment from leading vendors, including Daikin, Fulton, Lennox, Tecogen, GPS, Aermec, Xetex and Islandaire.  D&B supports engineers, contractors and building owners serving the commercial, institutional, residential and industrial markets.  For 45 years, D&B had been the region's leading supplier of Eco-friendly HVAC products.  D&B's experienced team of engineers and support staff are committed to ensuring the success of all types of mechanical construction projects, by providing design assistance, equipment selections, installation and maintenance support to optimized HVAC and Cogen solutions. 


Our experienced team of engineers and support staff are committed to assuring the success of your project,  assisting in the design, selection, installation and maintenance of the optimum solution.  We specialize in handling complex situations including retrofit applications, acoustically tuned HVAC installations, indoor air quality issues, zone control and seamless integration with building automation systems.

  • ASHRAE - Member
  • New Jersey Society of Energy Engineers - Member
  • United States Green Building Council - Member
  • New Jersey Sustainable Business Alliance - Executive Board member
  • LEED™-certified building designers
  • IBC 2000 certified
  • Hospital Engineering Society of Greater New York
  • Health Facilities Management Society of New Jersey
  • New Jersey School Buildings and Grounds Association


  • TMI
  • Flow Design
  • Fulton
  • gps
  • Heatwave
  • Islandaire
  • Lennox
  • Security Chimneys
  • Sterling
  • Tecogen
  • Tecogen
  • Tecogen
  • Xetex
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