Hillside Oil Heating & Cooling

Hillside Oil Heating & Cooling has kept Delaware, Maryland, and Pennsylvania homeowners comfortable for over 70 years, earning a 4.7-star rating across 224 reviews. Based in Newark, Delaware, this full-service HVAC contractor serves New Castle County and Cecil County while handling heating oil delivery, boiler and furnace repair, central air installation, and ductless mini-split systems for both residential and commercial clients.

What distinguishes Hillside is their commitment to transparency and responsive service. Their automatic heating oil delivery program includes budget billing, and they partner with LIHEAP to assist households facing energy emergencies. The company also handles natural gas conversions and installs smart thermostats for enhanced climate control, offering commercial fuel services for businesses needing ultra low sulfur diesel.

Homeowners consistently praise named technicians who arrive prepared and communicative. When Justin responded to an emergency call after another contractor failed to show, he calmly assessed the situation and restored heat while explaining each step to the homeowner. For LIHEAP-assisted customers facing urgent situations, staff members like Kasey and Sherri have navigated complex assistance paperwork to ensure timely service.