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D.E. Duffey Welcome to home comfort made more convenient and accessible than ever. Welcome to a world of heating and cooling products and services unlike any you've experienced. Welcome to a time-honored tradition of customer-centric family business that dates all the way back to 1898. Welcome to suburban Philadelphia's first and finest full-service home comfort company. Welcome to D.E. Duffey & Sons ... or more specifically, welcome to the D.E. Duffey & Sons website.

Here you will find a range of resources for all your heating and cooling needs. You'll also gain access to a wealth of information and innovations that allow you to manage your home comfort with confidence and peace and mind.

D.E. Duffey & Sons is here to keep you comfortable, with exceptional service and quality products. It's what we've done for over 100 years, and what we intend to do for at least 100 more. So stay awhile, look around, and let us know what you think. We'd love to hear from you.

From the Blog

Tune In – and Tune Up

04/28/16With the nice weather finally looking like it’s here to stay, you probably have your hands full de-winterizing your home. You’re getting the patio furniture out of st ... read more.

Hot Water Heaters: Tested, Proven and Ready to Serve

04/01/16At D.E. Duffey, we’re dedicated to excellence in home comfort service. We look for that same commitment to quality in the brands we carry, which is why we offer only th ... read more.

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Tune In – and Tune Up

Posted: 04/28/16 ... read more.

Hot Water Heaters: Tested, Proven and Ready to Serve

Posted: 04/01/16 ... read more.


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Associations PPA NORA Delaware Valley Fuel Dealers Association PMAA Oilheat America


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D.E. Duffey & Sons, Inc.
1982 Butler Pike
Conshohocken, PA 19428

D.E. Duffey
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