For all of your heating & cooling needs, DE Duffey & Sons has you covered
610-940-1400
For over 125 years, homeowners in Pennsylvania have trusted our family company to keep their homes comfortable with personal and professional service.
A well-maintained, high-efficiency AC system doesn’t just keep you cool—it saves you money. Regular tune-ups help your system run smoothly, reducing energy use and lowering your monthly utility bills. Plus, catching small issues early can prevent costly breakdowns down the line. An efficient system means better performance, longer equipment life, and more comfort for less.
Is It Time for a New Heating or Cooling System?
If your heating or cooling system is showing signs of wear or struggling to keep up, now’s the perfect time to explore your options. From high-efficiency heating and cooling systems to ductless solutions, our expert technicians deliver a full range of services, including repairs, replacements, and new installations tailored to your home’s needs.
Experience the Duffey Difference
Join the D.E. Duffey & Sons family and experience the comfort and care that has made us a trusted name in home services for over 125 years. Call us today to schedule your service or explore the latest in home heating and cooling technology.
Or call us at (610) 940-1400 for a free quote today. Welcoming new customers.
Reduces utility costs
Improves air quality
Helps prevent untimely breakdowns
Energy efficient
Extends the life of your equipment
Welcome to D.E. Duffey & Sons, your trusted, local, 4th generation total home comfort partner. Since 1898, suburban Philadelphia home-owners have trusted us to provide fair pricing on home heating oil as well as heating and AC system service, maintenance and installations. After 120 years, we continue to strive to meet the ever-changing needs of the communities we serve through an unwavering commitment to delivering an exceptional level of service for our customers. This is our promise, it is who we are, and what we do each and every day. It is what has driven our growth for over a century and it is what will fuel our continued growth in the future. It is the “Duffey Difference.” To do so, D.E. Duffey offers the best high efficiency heating and cooling systems from Rheem, Fijitsu, Burnham, Lockinvar, Energy Kinetics and more – installed and serviced by the best technicians in the area.
D.E. Duffey is happy to meet the heating oil fuel delivery needs of residents of Montgomery County, and select areas of surrounding counties. We offer delivery as well as HVAC maintenance, service, and installation.
CALL US TODAY AT (610) 940-1400
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