45 AC Replacement Contractors in San Antonio, TX

AC replacement in San Antonio carries more urgency than in most US cities — with 113 days above 90°F each year and summer highs near 96°F, a failing central system creates real health risk, not just discomfort. The replacement market reflects that pressure: 38 contractors specialize in this work, carrying a 4.8-star average across nearly 32,000 reviews, with 17 available for same-day or emergency scheduling.

Central AC replacement costs scale with system size. A 3-ton basic system runs $5,500–$11,000 installed, a 4-ton mid-efficiency unit comes in at $7,500–$14,000, and a 5-ton high-efficiency system ranges from $9,500–$16,000. Total project costs depend heavily on duct condition, attic access, and whether refrigerant line sets need replacement. Texas-licensed contractors must hold the Class A or Class B credential from TDLR, backed by 48 months of qualifying experience.

Same-day replacement is common in this market, particularly in peak summer. Air & Plumbing Today receives multiple reviews citing quotes and full installations completed within the same day. At Cowboy's Air Conditioning & Heating, technicians John and Gunner are named for communicating clearly through a six-hour mini-split installation, keeping the homeowner informed at each stage. Jon Wayne Service Company gets consistent marks for managing multi-system homes — HVAC, plumbing, electrical — under one service call.