Top Heating & Cooling Company in New Castle County, DE

Who’s New Castle County, DE’s best heating and cooling company? Hillside is a full-service heating and commercial fuel company servicing commercial and residential customers—making daily deliveries of home heating oil, diesel fuels, and gasoline. We also provide our neighbors with affordable heating and air conditioning (HVAC) services.

Hillside HVAC is big enough to serve you yet small enough to know you. We are family owned and operated for over 70 years. Located in Newark, Delaware, our community has deep roots 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 fuel delivery, we are a full-service heating and air conditioning installation and repair company. With three generations of trust behind us, you can count on only the utmost professionalism for our services.

You Can Trust Hillside

A+ Rating from the Better Business Bureau

Hillside’s BBB Accredited Business rating is an A+. 

BBB ratings represent the BBB’s opinion of how the business is likely to interact with its customers. The BBB rating is based on information BBB is able to obtain about the business, including complaints received from the public. BBB seeks and uses information directly from businesses and from public data sources.

BBB assigns ratings from A+ (highest) to F (lowest). In some cases, BBB will not rate the business (indicated by an NR, or “No Rating”) for reasons that include insufficient information about a business or ongoing review/update of the business’s file.

Torch Awards for Ethics

Hillside has been awarded The Torch Awards for Ethics.

The Torch Awards for Ethics honors companies whose leaders demonstrate a high level of personal character and ensure that the organization’s practices meet the highest standards of ethics, and consequently generate trust. These companies’ high level of trust is recognized among their employees, customers, and communities. The award embodies Better Business Bureau’s mission to be the leader in advancing marketplace trust.