First-rate quality in air conditioning and heating system installation in central and northern NJ

John Duffy Energy Services is in the business of providing your commercial space with reliable, cost-effective solutions. That means we offer some of the very finest products and services available, including name-brand products and first-rate quality in installation and maintenance.

John Duffy Energy Services made its name on peerless customer service, which means that we don’t simply offer an impressive range of products. We will take you through the entire process, from sales through design, installation, and service.

We’ll make sure you get a heating or air conditioning system that will work as effectively and efficiently as possible, and that it will be perfectly tailored to your needs.

We’ll ensure that our certified technicians install it properly and offer you around-the-clock maintenance options. We will make certain that we deliver a product we can stand behind 100%, and that you’ll enjoy free of worry or hassle.

For more information about any of these systems, contact John Duffy Energy Services today, and find out why we’re New Jersey’s top choice for all your heating, cooling, and energy needs! 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