Does your first floor feel perfectly comfortable while your upstairs feels hot and stuffy? If you’re constantly adjusting the thermostat or relying on fans to keep your second floor cool, you’re not alone. Uneven temperatures are one of the most common complaints homeowners have during......
When most homeowners think about summer comfort, they focus on temperature. However, humidity often has an even bigger impact on how your home feels. Even if your thermostat says 72 degrees, high humidity can make your home feel warmer, stickier, and far less comfortable. Excess......
Summer storms can knock out power faster than many homeowners expect. Between heat waves, strong thunderstorms, lightning, and overloaded electrical grids, outages are becoming more common throughout the Philadelphia Main Line and surrounding Pennsylvania communities. While most people immediately think about losing air conditioning, a......
Choosing the right size air conditioner isn’t just about staying cool—it directly impacts your energy costs, comfort, and how long your system lasts. At D.E. Duffey & Sons, we often see homeowners dealing with systems that are either too large or too small, leading to......
As temperatures start to rise in Pennsylvania, your air conditioning system is about to work overtime. The last thing you want is for your AC to struggle—or break down—on the first hot day of the year. A quick pre-summer check can help you avoid costly......
As temperatures begin to rise, many homeowners wait until the first hot day to turn on their air conditioning—only to find it’s not working properly. At D.E. Duffey & Sons, we recommend testing your AC system early in the spring to make sure it’s ready......
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......
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......
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,......