Replacing a complete central air conditioning system (including the outdoor condensing unit and indoor evaporator coil) for a standard 2,000-square-foot home typically ranges from $7,000 to over $15,000, depending on whether the home requires a 3.5-ton or 4-ton cooling capacity, the chosen equipment efficiency tier, regional labor costs, and any required modifications to existing refrigerant lines or electrical disconnect boxes. Bundling the AC replacement with a new communicating gas furnace or air handler can push total system replacement costs between $12,000 and $22,000+.
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