Commercial Gas

We install and maintain gas furnaces and boilers

There is more than one way to fuel a commercial building, and John Duffy Energy Services is pleased to offer our customers a wealth of options, including superior service in commercial natural gas, coupled with our usual high standards of customer service. Natural gas can be used for heating, lighting, cooking, and a range of other functions; it’s a flexible fuel source that comes backed with John Duffy Energy Services’ usual high standards of service and quality.

Over 100 hundred years of dependable service

The name of John Duffy Energy Services has become synonymous with reliability. We’ve been around since 1891, and are proud to be the natural gas supplier for companies and industries throughout the northern and central parts of New Jersey.