DE Duffey & Sons Inc

I truly could not recommend this company enough! I recently purchased a home with oil heating and was unfamiliar with what it entailed. Not only did they send someone out to check on my system, but they were incredibly honest/transparent about how much oil I REALLY needed to purchase to heat my home (i.e. didn’t try to upsell me even though I was clearly in unfamiliar territory). The tech and his partner who were sent out answered every silly question I had and were incredibly kind and respectful. The team at DE Duffey is knowledgable, professional, and epitomizes what it means to have good customer service. I’d give 6 stars if I could!

We own a 4-story home from 1880 and while there was central air conditioning, it did not reach the top floors with enough power to heat or cool adequately. We contacted D.E. Duffey & Sons who had previously done an excellent job converting us from oil to gas in 2017. The primary concerns for both us and Duffey were the very thick Wissahickon Schist walls they would have to drill through and gaining egress to the outside without damaging the roof at a sufficient angle to drain appropriately. Before agreeing to contract the work, Duffey sent a team to confirm the mini-split system could be installed correctly including drilling access test points in the walls. Since I am writing this review, the tests proved successful, and we contracted with Duffey to install a 4-head mini-split system. Three heads on the top level and a 4th head in our walkout basement which will act as a dehumidifier as well as provide heat and cooling. I can’t say enough good things about the job Duffey did. They sent a large team to take make sure they could handle the inside and outside work safely and quickly. Everything was neat and clean when they left each day. All the holes they had to drill were sealed in and they even painted the white tubing to better blend in with our house. I would highly recommend the Duffey team.

We have been with Duffy for our heater and oil needs for many years and they have always been very professional and responsive whenever we needed them. Now we needed a new AC system as ours was 20+ years old. They were very helpful recommending what would best suit the needs of our home, and always available to answer questions. Their installer team did an awesome job, even more than we expected as the duct system was redesigned and we have much more room in the attic then before the install. Thanks again Duffy & Sons!

We recently had a ductless heating and air conditioning system installed by DE Duffey & Sons. The entire team from sales to installation did a really great job! They were professional, communicative, attentive to detail, and respectful of the property. They made this a very easy and stress-free process. I highly recommend this company. Great quality and value.

Duffey installed Central Air at our house in early May. The whole process was easy, efficient and overall a great experience. They had everything done in 3 days, left the house looking great each day when they left despite the challenge of blown insulation in the attic, and addressed any concerns promptly. It was overall a great experience!

Pete and Joe's team did a great job installing our new heating system. They had a few guys come out so it was nice to get the job done in less than 2 days. We were very comforted by Ken's knowledge in explaining what system would be best for our house too. Thanks all!

I purchased a Peerless Purifier boiler a few years ago from Duffey. It has had one problem after another. The owner, the salesman, and the company rep never returned my calls. The technicians could not repair it. Recently the company I found to repair it and do yearly maintenance decided not to service Philadelphia
Area any longer ; they suggested I call Duffey again because once again we have no heat. Mike at Duffey said they no longer sell Peerless boilers and wanted to know why I was calling them since
Even though they were the installers they couldn’t
Help me before. Duffey charged me 8 thousand dollars in addition to that I have spent over 4 thousand dollars for repairs and additions to the system. Not to mention many work days lost , hours on the phone, hours waiting for technicians and NO HEAT! I would not recommend this company; they do not stand behind their products and do not know how to repair them.

My Mother used DE Duffey and Sons. This review is on her behalf.

I purchased a Peerless Purifier boiler a few years ago from Duffey. It had one problem after the next. The owner, salesman nor the company representative returned any of my calls. The technicians could not repair it. The company whom I had found to repair it and do yearly maintenance recently decided not to service the Philadelphia area any longer; they suggested I call Duffey again. We lost heat again, so I decided to give Duffey a call. Mike at Duffey said they no longer sell peels boilers and wanted to know why I was calling them since they could not help me before. In addition to almost eight thousand dollars I spent at Duffey's, I have spent an additional four thousand dollars for repairs and additions to the boiler system. I would not recommend this company; they do not stand behind they products and do not know how to repair them.
-Helen Atkinson

Fantastic family-owned business. Always courteous and professional. They ALWAYS are available for emergency calls. I switched to their automatic heating oil delivery 2 years ago. I'm sticking with them. I highly recommend D E Duffey & Sons.

I have been a Duffey customer for several years. They are always responsive and attentive to my needs, whether it be for an oil delivery or a service call. Scheduling is easy and the team is always on time. Steve Capizzi serviced my boiler today and did a great job as usual. He walked me through what he did, why he did it and what to do if anything changed. I know I can always count on Duffey when I need them!