Comfort and Excellence For more than 120 years, D.E. Duffey & Sons has been dedicated to one mission: keeping our friends and neighbors comfortable. Since our founding in 1898, we’ve built a legacy of trust and reliability in suburban Philadelphia and surrounding communities. While we take...
As the summer heat sets in, many homeowners focus on keeping their homes cool and comfortable. However, another important aspect to consider is indoor air quality (IAQ). Poor IAQ can lead to health issues, especially for those with allergies or respiratory conditions. Here are some...
As we head into the peak of summer, heatwaves are becoming more frequent and intense. These extreme weather events can cause significant discomfort and health risks if you're not adequately prepared. At D.E. Duffey, we understand the importance of keeping your home cool and comfortable...
In the fast-paced world we live in, we often overlook one essential factor that directly impacts our health and well-being: indoor air quality. From dust and allergens to chemical pollutants, the air inside our homes can harbor invisible threats. However, D.E. Duffey & Sons is...
Welcome to the world of D.E. Duffey & Sons, where tradition meets innovation in providing top-notch services to communities across the region. With a rich history of serving customers with excellence, we take great pride in our commitment to quality and customer satisfaction. Join us...
Discover the importance of professional heating system maintenance. Learn how regular tune-ups by expert technicians can prevent outages, reduce costs, and extend the life of your system. As the chill of the season approaches, ensuring your home remains a haven of warmth and comfort is paramount....