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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.

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.

Phone
1-800-246-3516

Office Address
465 Mulberry St Newark NJ 07114-2736

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

Master Plumber License #: 36BI01174600  |  Home Improvement Contractor License #: 13VH02278800 | Master HVACR Contractor License #: 19HC00028600

© 2015 John Duffy Energy Services. All rights reserved.

John Duffy Energy Services, serving Newark, Elizabeth, Jersey City, Edison, East Orange, and surrounding towns in Essex, Union, Middlesex, Morris and Hudson county, NJ.