Get a preliminary air conditioning replacement cost range by system size and efficiency, then connect with local HVAC professionals for written quotes.
Preliminary planning range
$4,500 – $14,000
Typical span before a professional inspection.
Free, a few questions, no obligation to hire anyone.

Project guide
What the work includes, what changes the price, and what to ask.
Replacing an air conditioning system covers the outdoor condenser, the indoor coil or air handler, line set and electrical connections, refrigerant charging, startup and commissioning. Efficiency level, tonnage and ductwork condition drive most of the difference. Estimt builds a preliminary planning range, then routes your project to local HVAC professionals.
| Scenario | Planning range |
|---|---|
Condenser and coil replacement Standard-efficiency system, existing ducts reused. | $4,500 – $7,500 |
Full system with air handler Higher efficiency equipment and new indoor unit. | $7,000 – $11,000 |
Replacement with duct or electrical work Duct repairs, zoning or panel capacity upgrades. | $10,000 – $14,000 |
AI estimates are preliminary planning ranges, not binding contractor quotes. Actual costs may change after professional inspection based on project scope, materials, permits, access, local requirements, and hidden conditions.
System size
Tonnage is matched to your home, not just the old unit's label.
Efficiency rating
Higher-SEER and variable-speed equipment costs more up front.
Ductwork
Leaky or undersized ducts may need sealing or resizing.
Electrical capacity
Some installs need a new circuit, disconnect or panel work.
Permits and rebates
Permits are typical; utility rebates may offset part of the cost.