All Aire Heating & Cooling in Chula Vista's Eastlake district has operated under CSLB license #891635 with dual C20 and C38 classifications since the company's founding in 2007. The C38 refrigeration credential separates All Aire from single-trade HVAC shops, covering walk-in cooler and freezer maintenance for commercial kitchens alongside residential work that sometimes overlaps with roofing access coordinated through CASAS ROOF INC. Residential services include heat-pump air handlers with auxiliary electric heating elements, propane-to-natural-gas furnace conversions, and evaporative cooler installation. ADU and garage-conversion projects near Otay Ranch Town Center often require All Aire to sequence ductwork rough-in with general contractors at Fausto Construction Inc. before drywall goes up. The commercial refrigeration division handles walk-in cooler compressor replacements, evaporator coil swaps, and thermostatic expansion valve calibration for units operating at sub-zero holding temperatures.