Cubby Oil & Energy - Wilmington's Experienced HVAC Services

Our maintenance service is designed to keep your system running efficiently and prevent common local issues. We perform a thorough inspection, clean essential components, check for potential problems like refrigerant leaks or airflow blockages, and calibrate your thermostat. For Wilmington's climate, we pay special attention to components prone to freezing and ensure your heating system is balanced for consistent comfort. Regular maintenance can improve efficiency and help avoid emergency repairs.

Absolutely. Uneven heating in a radiator system is a frequent concern in older Wilmington homes and is often caused by air trapped in the lines or a need for balancing. Our technicians are experienced in diagnosing and resolving radiator imbalances. We'll bleed the system to remove air, check the pressure, and adjust the valves to ensure heat is distributed evenly throughout your home, restoring consistent comfort.

As a family-run business since 1945, we pride ourselves on reliable, timely delivery you can count on. We offer B50 Bioheat SuperPlus™ to all our customers in the Wilmington area. This advanced fuel blend burns cleaner than standard heating oil, reducing greenhouse gas emissions by up to 40% and helping to maintain your heating system. It's a simple switch that supports both your home's efficiency and local air quality.