Hillside HVAC is big enough to serve you, yet small enough to know you. We are family owned and operated for over 65 years. Located in Newark, Delaware, we have deep roots in our community thanks to your support. Real people still answer our phones Monday through Friday, 8:00 AM – 5:00 PM. To Hillside, you are more than a customer.
A little more about us. We regularly service New Castle County, DE with commercial and residential heating oil delivery, and commercial fuels. Along with our fuel delivery, we are also a full-service heating and air conditioning installation and repair company. With 3 generations of trust behind us, you can count on only the utmost professionalism for any services we perform.