As winter comes to an end and temperatures begin to rise, it’s time for homeowners to shift from heating their homes to preparing for warmer weather. This seasonal transition is the perfect opportunity to make sure your HVAC system is operating efficiently and ready for...
A Simple Winter Reminder from D.E. Duffey & Sons When snow hits Delaware County and the Main Line, most homeowners rush to clear the driveway and front steps. But there’s one important area that often gets overlooked: 👉 The pathway to your heating oil fill pipe. If you’re...
Your heating system rarely stops working without warning. In most cases, furnaces show clear signs of trouble before they completely fail. If you live in Pennsylvania and rely on a furnace to keep your home warm, recognizing these red flags early can help you avoid emergency...
This winter has delivered more than just typical cold weather. During the 2026 heating season, meteorologists have tracked polar vortex activity pushing Arctic air farther south, resulting in prolonged cold snaps, winter storms, and increased demand on home heating systems throughout our region. For homeowners, polar...
Happy Holidays from D.E. Duffey & Sons: Keeping Your Home Warm All Winter Long As the holiday season arrives and temperatures drop across Pennsylvania, everyone at D.E. Duffey & Sons would like to wish you and your family a warm and happy holiday season. Winter is one...
As December arrives across Montgomery and Chester Counties, the real heating season begins. Nights get colder, temperatures drop quickly, and your heating system shifts from occasional use to running almost nonstop. This is exactly when homeowners begin noticing something surprising:their heating system may actually be too...
When it comes to keeping your home comfortable, customers want more than just quality equipment or competitive pricing — they want dependable people who truly care. That’s why customer reviews are so important. They help homeowners across the Greater Philadelphia area discover why D.E. Duffey...
Looking for ways to make your home more energy-efficient — and environmentally friendly — this heating season? Investing in a high-efficiency HVAC system is one of the smartest, most sustainable choices you can make. 🌡️ Efficiency Equals Sustainability High-efficiency systems are designed to use less fuel to...
Fall in Pennsylvania can be unpredictable — one week feels like summer, the next week you’re waking up to chilly mornings. These temperature swings make it tough to know when to turn on the heat, open the windows, or do a little of both. The...
A comfortable, energy-efficient home starts with a properly sized heating system. Many homeowners think “bigger is better,” but when it comes to furnaces and boilers, the wrong size can lead to uneven heating, wasted fuel, and higher utility bills. At D.E. Duffey & Sons, we...