We maintain a full-time, certified service team who are continually trained and certified by the Pennsylvania Petroleum Association. We never use sub-contractors or temporary workers. D.E. Duffey employees do the work and we stand behind everything we do with our Pledge of Quality & Fairness Guarantee.
Environmentally Responsible
The staff at D.E. Duffey have the training and equipment to comply with the most stringent environmental requirements. We are just as concerned about protecting our environment as you are.
Complete Customer Satisfaction is the number one priorty of
D.E. Duffey & Sons, Inc. We stand behind our work 100% by providing only top grade fuel, equipment and materials. We pledge to be fair, honest and open with all our customers, employees and supplies.
Heating Oil Systems
There are three types of heating systems that use heating oil:
- Furnaces
- Boilers
- Water Heaters
D.E. Duffey sells, installs and maintains all three types.
Gas Systems
Gas heating and cooling systems can use either natural gas or bottled gas. Just like heating-oil-fueled systems, there are three types of systems:
- Furnaces (Hot Air)
- Boilers (Hot Water)
- Water Heaters
Most systems are rated by their overall performance, called Efficiency Rating.
Heat Pump Systems
D.E. Duffey installs all types and models of heat pump systems