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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

Year-Round Energy Conservation Tips

08/28/14At D.E. Duffey, we are committed to helping our neighbors save energy and reduce their carbon footprint. We only sell and install the highest ENERGY STARĀ® rated heating ... read more.

Spread Out Your Heating Payments or Avoid Winter Heating Bills Altogether

07/17/14Did you know that you pay 75% of your yearly heating expenses during just 3 months? During these winter months, demand for heating oil goes up and so can prices and the f ... read more.

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Year-Round Energy Conservation Tips

Posted: 08/28/14 ... read more.

Spread Out Your Heating Payments or Avoid Winter Heating Bills Altogether

Posted: 07/17/14 ... 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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