HVAC Services in College Gardens

College Gardens is a quiet residential neighborhood in Rockville where Efrain Sarceno has worked on a mix of mid-century split-levels and newer townhomes. The HVAC systems here range from aging gas furnaces with original ductwork to more recent heat pump installs — each with its own failure patterns.

When a College Gardens homeowner's AC runs all day without cooling the house, Efrain's first checks are refrigerant charge and condenser coil condition — the two most common causes in this neighborhood's housing stock. For furnace calls, it's usually a dirty flame sensor or an igniter on its last legs.

Efficiency varies widely across College Gardens homes. Some homeowners here are still running 80% AFUE furnaces from the early 2000s — systems that work, but cost noticeably more to run than modern 96% AFUE equipment. Efrain doesn't push replacement, but he gives you the real math when you ask.