How much does a new AC unit cost? A new central air conditioner typically runs $4,675 – $6,325 installed for a standard 3-ton system, and more for larger or high-efficiency units. The calculator below estimates your price by size, efficiency, add-ons and region.
💵 What Will a New HVAC System Cost?
Estimate the installed replacement cost of a new central AC, heat pump, gas furnace, full system, or mini-split in the US. Adjust for size, efficiency, add-ons (ductwork, removal, permits) and your region to get a realistic price range — before you call a contractor.
🛠️1. System Type
Pick the system you are replacing. "AC + Furnace" is a full split-system swap (both units at once).
📏2. System Size
Range: 1.5 – 5 Tons (cooling). A typical home is 2–3.5 tons.
⚡3. Efficiency Tier
Higher efficiency (SEER2 / AFUE) costs more up front but lowers running bills. Premium tiers are usually variable-speed / inverter.
📍4. Region
Labor rates vary a lot by metro. This scales the estimate to your area; pick National for a baseline.
➕Add-ons & extras (ductwork, removal, permits) — optional
New AC Unit Cost by Size
Typical US installed price ranges at standard efficiency:
| Size | Estimated Cost (installed) |
|---|---|
| 2 ton | $4,000 – $5,400 |
| 3 ton | $4,675 – $6,325 |
| 4 ton | $5,400 – $7,300 |
| 5 ton | $6,050 – $8,200 |
What’s Included in a New AC Unit Price
An installed price covers the equipment (condenser + coil) plus labor, and usually add-ons like old-unit removal, a new line set, electrical work, permits and sometimes ductwork. High-efficiency units cost more up front but lower bills. Size the unit correctly first with our AC Tonnage Calculator, then price it above and get three quotes.
Frequently Asked Questions
How much is a new AC unit installed? A standard 3-ton central AC typically costs $4,675 to $6,325 installed. Larger sizes, high-efficiency models, and add-ons like ductwork raise the price.
Does the price include installation? The ranges here are installed prices — equipment plus labor. Extras such as new ductwork, electrical upgrades, removal and permits are added separately; tick them in the calculator above.
What size AC unit do I need? It depends on your home’s area, climate and insulation. Use our AC Tonnage Calculator to confirm before buying — an oversized unit costs more and dehumidifies poorly.
Related: refrigeration system problems, causes and solutions.
Estimates vary by contractor. Compare free quotes from licensed local pros before you commit. Request a quote →
High-efficiency systems may qualify for utility rebates and federal or state incentives. Find current programs at ENERGY STAR & DSIRE.
Figures are reviewed by the Refcon HVAC engineering team using U.S. DOE, ENERGY STAR & ACCA Manual J data. Estimates only — confirm with a licensed pro.