HVAC Cost Guide
AC Replacement Cost
Central AC replacement usually includes outdoor equipment, indoor coil coordination, refrigerant lines, pad or brackets, electrical disconnect, thermostat or controls, startup, and disposal.
Cost planning ranges
AC replacement cost depends on capacity, efficiency, equipment match, refrigerant-line condition, ductwork, electrical work, permits, access, and contractor labor. These figures are planning ranges, not contractor quotes. Final pricing depends on the home, materials, labor, access, permits, and the written scope.
For broader planning, compare the HVAC hub and calculator, AC replacement cost guide, furnace replacement cost guide, heat pump replacement cost guide, HVAC sizing guide, and HVAC financing guide.
Basic AC replacement
$5,500-$9,500+
Standard efficiency, straightforward access, and limited additional work.
Mid-range AC system
$8,500-$14,000+
Higher efficiency, matched coil, improved controls, and common installation needs.
Premium AC replacement
$12,000-$20,000+
Variable-speed or high-efficiency equipment with more complex installation.
AC plus duct or electrical work
$14,000-$25,000+
Scope can increase when airflow, line set, panel, or ductwork issues are included.
What affects the price?
Good estimates explain the scope and assumptions, not just the total. Use these factors to compare written quotes more clearly.
Cooling load, tonnage, and equipment efficiency
Indoor coil, furnace or air handler compatibility
Duct leakage, return air, airflow balance, and static pressure
Line set, condensate drain, pad, electrical, and permits
Single-stage, two-stage, or variable-speed equipment
Warranty, financing, rebates, and installation quality
Repair or replace the air conditioner?
Compare repair cost, system age, refrigerant type, efficiency, comfort, and whether other components are near end of life.
Repair may fit when
Repair may make sense for a newer AC with an isolated capacitor, contactor, drain, thermostat, or minor component issue.
Replacement may fit when
Replacement may be stronger when the system is older, repairs are expensive, refrigerant is costly, or comfort issues continue.
Compare Scope Before Price
Get estimates with the same details in writing
Use this guide to organize questions, then request local estimates that spell out materials, labor, permits, warranty, and exclusions.
AC estimate checklist
Keep notes from each contractor in the same format. It makes pricing, warranty, timeline, and scope differences easier to spot.
Ask for model numbers, tonnage, and efficiency ratings
Confirm whether the indoor coil and line set are included
Ask how ductwork and airflow were evaluated
Review thermostat, permits, electrical, drains, and disposal
Compare labor and parts warranty terms
Review rebates, financing terms, and total installed cost
HVAC Resources
Related guides and calculators
Keep the next step close, whether you are comparing costs, system choices, warranties, or local estimates.
AC Replacement Cost FAQ
How much does AC replacement cost?
Many central AC replacements fall between $5,500 and $14,000 or more. Premium equipment, ductwork, electrical work, access, and efficiency choices can increase the total.
Should I replace the furnace when replacing AC?
Not always. However, the AC coil, blower, controls, and airflow must work with the existing furnace or air handler. If the furnace is old, compare the cost of replacing both now vs later.
What size AC do I need?
Sizing should be based on a load calculation, not square footage alone. Oversized equipment can short-cycle and struggle with humidity.
Does AC replacement require ductwork?
Not automatically. Duct repair or resizing may be needed if airflow is poor, ducts are damaged, or rooms are uneven.
Is a heat pump better than central AC?
A heat pump can provide both heating and cooling. Compare climate performance, backup heat, utility rates, incentives, and installed cost before deciding.
Next Step
Compare HVAC estimates
Return to the estimate form or use the HVAC calculator to organize the project before comparing quotes.