A standard central AC replacement usually lands between $5,000 and $12,000 installed. Smaller homes with simple swaps run $5k–$7k; larger homes, high-efficiency units, or ductwork changes push $9k–$12k+.
What drives the price
Home size and system tonnage
SEER2 efficiency rating (higher = pricier)
Ductwork condition — replacement adds $3k–$7k
Brand tier and labor market
Red flags in a quote
Quote far below $4,500 (corners being cut?)
No load calculation (Manual J) mentioned
Single lump sum with zero line items
'Today only' pressure pricing
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