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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

Duffey Directions Lead to Energy Savings

01/14/16A few weeks into January, the “new-ness” of the New Year has faded, and we’re now officially in the full swing of 2016! As we sink into the new routine, some of tho ... read more.

Schedule Your Tune-Up Before Winter Wakes Up

12/23/15Heating malfunctions are most likely to take place when your system is suddenly activated after a long period of disuse… such as when an unseasonably warm December give ... read more.

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Duffey Directions Lead to Energy Savings

Posted: 01/14/16 ... read more.

Schedule Your Tune-Up Before Winter Wakes Up

Posted: 12/23/15 ... 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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