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.
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.