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Commercial repairs and installations

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.

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    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.