Hillside Oil Heating & Cooling, headquartered in Newark, Delaware, has been a family-owned and locally operated business for over 70 years, serving New Castle County, DE, Cecil County, MD, and Southern Chester County, PA. The company provides a comprehensive range of services, including heating oil delivery, HVAC system installation, maintenance, and repair for both residential and commercial clients. Their offerings cover various heating systems such as oil, natural gas, and electric heaters, and they specialize in air conditioning systems, including central air and ductless units. Hillside also supplies diesel fuels for off-road equipment used in construction, agriculture, and factories. Renowned for their exceptional customer service, Hillside emphasizes a personal touch, ensuring real people answer calls during business hours. Hillside also has a strong community presence, supporting local charities and civic organizations. Their mission is to maintain home comfort throughout the year, combining professional expertise with a deep commitment to customer care.
