Cost guide · HVAC
How much does AC replacement cost in 2026?
Typical range
$5,500 – $12,500
installed (residential)
A residential central AC replacement costs $5,500–$12,500 installed in 2026, with most operators quoting $6,500–$9,500 for a typical 3-ton 14-SEER2 system. Premium high-efficiency systems (16+ SEER2 with variable-speed) run $10,000–$18,000.
Why the range is wide
AC replacement pricing has climbed significantly post-2023 due to refrigerant transitions (R-410A phaseout to R-32 / R-454B), SEER2 efficiency standards, and labor cost inflation. The base 14-SEER2 system runs $5,500–$8,000 for a basic install; 16-SEER2 with variable-speed inverter compressor and matching air handler runs $9,500–$14,000. Add $2,000–$5,000 for ductwork modifications, electrical upgrades, or zoning.
Factors that affect price
System size (tonnage)
2-ton system: $5,000–$7,500. 3-ton: $6,500–$9,500. 4-ton: $8,000–$12,000. 5-ton: $9,500–$14,000. Sizing depends on home size, climate, and load calculation.
SEER2 efficiency rating
14-SEER2 (federal minimum): base price. 16-SEER2: +$1,500–$3,000. 18+ SEER2 variable-speed: +$3,000–$6,000. Higher SEER pays back over 8–15 years in cooling-heavy climates.
Refrigerant
R-410A systems (legacy) are being phased out; R-32 and R-454B are the new standard. Pre-2025 R-410A installs may carry compliance risk.
Brand
Carrier, Trane, Lennox: premium tier. Rheem, Goodman, Bryant: mid-tier. Goodman is typically 10–20% cheaper than Trane for similar specs.
Ductwork condition
Existing ductwork in good shape: no add. Repair or partial re-duct: $1,500–$4,000. Full re-duct: $3,500–$8,000.
Electrical upgrade
Service panel must support the new system's amperage. If panel is undersized, add $1,500–$3,500 for panel upgrade.
Region / climate
Southern markets (TX, FL, AZ, NV): high competition keeps pricing slightly lower per ton. Northeast and West Coast: pricing ~10–20% higher due to labor cost.
Regional variation
Hot-climate regions install more AC, which keeps price-per-ton lower despite higher overall demand. California's Title 24 building code adds permit and HERS-testing requirements that don't apply elsewhere; those add $300–$800 to the install.
AC replacement — frequently asked
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