Commercial Services

Expert installation and around-the-clock emergency services in central and northern NJ.

John Duffy Energy Services, a family-owned and operated business that’s been around since 1891, has long served Newark and the surrounding area with a reputation for excellent products and dependable customer service.

John Duffy Energy Services provides superior products, expert installation, and around-the-clock emergency services. Our mission is to make it as easy and worry-free as possible for you to run your business. The bottom line is that with John Duffy Energy Services, you won’t ever have to worry about running out of fuel, or about whether the air conditioning repair work will be done promptly. We are passionate about providing commercial services that will allow any business to function better—period.

Our commercial services include:

  • Generator Fueling
  • Commercial Heating Oil
  • Commercial HVAC
  • Commercial Gas
  • To find out more about our commercial services, contact John Duffy Energy Services today. Serving Newark, Elizabeth, Jersey City, Edison, East Orange and surrounding towns in Essex, Union, Middlesex, Morris and Hudson county, NJ.

    Office Address
    465 Mulberry St Newark NJ 07114-2736

    Mailing Address
    P.O. Box 5610, Newark, NJ 07105