Frozen evaporator coils in older homes
Why it happens here
Original ductwork in Alta Vista and Pettigru leaks air, so the evaporator coil does not get enough airflow. That drops the coil temperature below freezing and ice builds up.
Our approach
We thaw the coil, measure static pressure, and seal accessible duct leaks. We also verify the blower motor is moving enough air and check the refrigerant charge.