AC Replacement Cost (2026 Guide)
What changes the price of replacing a central air conditioner.
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What drives the price
Cost depends on system size (tons), SEER2 efficiency, refrigerant type, line-set and electrical condition, ductwork changes, and whether you also replace the furnace or air handler.
FAQ
What determines AC replacement cost?
Tonnage, efficiency rating, whether the line set and electrical need updating, and if the air handler or furnace is replaced at the same time.
How long does installation take?
A like-for-like replacement is usually one day; duct or electrical changes add time.
Should I replace the furnace too?
If it is old or the air handler is failing, replacing both together often saves labor later.