Straight Shooter Heating & Cooling on Santee's Mission Gorge Road corridor holds CSLB license #1106678 under the C-20 classification, ranking in the top two percent of California licensed contractors by BuildZoom's verified-permit index with over 183 completed projects. Heat pump installations that replace gas furnace and AC split systems require rerouting of condensate and refrigerant lines, a mechanical-to-plumbing handoff coordinated with contractors such as Expert Plumbing and Repipe for gas-line capping and condensate discharge. The full service scope covers air conditioning repair and installation, furnace and heat pump diagnostics, indoor air quality products, and air duct repair and replacement for residential properties throughout East County. Rooftop package-unit replacements on single-story homes with flat or low-slope roofs demand crane access and flashing coordination with roofing contractors such as AVL Roofing Inc. to reseal the roof penetration after the new unit is set. Highest-complexity projects involve full system conversions from gas forced-air to electric heat pump with variable-speed inverter compressors, requiring new refrigerant line sets, condensate routing, updated electrical service, and Manual J load calculations for Title 24 compliance.