• Princeton University Neuroscience Building

    D&B Engineering was able to meet extremely difficult fan efficiency and sound requirements in this state-of-the-art building. 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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  • Metro Top

    D&B Engineering provided Evaporator Condensing Penthouse units which were installed at the Metro Top building located at 90 Woodbridge Center Drive, Woodbridge, New Jersey.

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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 sold floor by floor equipment going into various floors at 10 Exchange Place, Jersey City, New Jersey
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D&B Engineering

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 was established in 1971 as a manufacturers’ representative selling McQuay-HVAC products in the Northern New Jersey area. Today, D&B represents more than 15 different world class manufacturers of energy-efficient HVAC and cogeneration equipment. In 1986, D&B Parts Corporation was established, to provide our valued customers with easy access to high quality HVAC replacement parts.



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


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