John Duffy Energy Services makes customer satisfaction a top priority. Whether you’re interested in having a new water heater or thermostat installed or repair work done on your air conditioning unit, we offer energy solutions for commercial needs across northern and central NJ. That means we’ll put the needed effort into designing and installing a system that’s perfectly suited for your business.
A John Duffy Representative will be in touch with you at your requested time! While you wait please create an account with us.
465 Mulberry St Newark NJ 07114-2736
P.O. Box 5610, Newark, NJ 07105