AC Installation Cost Calculator — Free Estimator
This AC installation cost calculator estimates the installed price of a new central air conditioner, heat pump, or ductless mini-split — adjusted for system size, efficiency tier, whether it's a new install or a replacement, ductwork needs, and your local labor market. Use it to budget central air before you collect quotes, or to sanity-check the install prices you already have.
Replacing an existing system? The Replacement Cost Calculator is tuned for like-for-like swaps; this one adds the extras of a fresh install — line set, electrical, and pad.
Describe the install
Estimated installed cost
Typical mid-point
$6,000
Per ton of capacity
$2,000
See the breakdown
National 2026 ballparks for budgeting — equipment, labor, permit, line set, and disposal included. Your local line-item quotes are the real number; use this to sanity-check them.
Typical AC installation costs (quick reference)
National installed-price ranges for standard-efficiency equipment with existing ductwork in good shape. High-efficiency tiers add roughly 12–25%; new ductwork adds several thousand.
| Install | Low | Typical | High |
|---|---|---|---|
| Central AC only | $4,500 | $6,000 | $9,000 |
| Heat pump | $6,500 | $9,500 | $13,000 |
| Full system (AC + furnace) | $9,000 | $11,500 | $16,000 |
| Mini-split (single zone) | $3,000 | $4,500 | $6,000 |
| Add new ductwork | +$2,500 | +$4,500 | +$7,000 |
Ranges reflect typical 2026 national pricing for residential jobs and vary by brand, region, and site conditions. Always compare multiple line-item quotes.
The formula, explained in plain English
Installation pricing is a base price for the type of system, scaled by size and efficiency, plus any ductwork — then adjusted for a fresh install versus a replacement and your local labor rates.
Why a new install costs more than a replacement
A first-time install adds a new refrigerant line set, electrical circuit and disconnect, and a condenser pad — work a like-for-like swap already has in place.
Why ductwork is the big variable
If a home has no ducts, adding them can rival the cost of the AC itself — which is why ductless mini-splits are popular for additions and older homes.
Why size moves price less than you'd think
Equipment cost rises with tonnage, but labor — the largest line — stays similar, so the size factor only spans 0.85–1.25.
Don't forget rebates
High-efficiency systems and heat pumps often qualify for federal tax credits and utility rebates that claw back a meaningful chunk of the install cost.
Frequently asked questions
Common questions about AC installation pricing.
How much does it cost to install central air conditioning?
A new central AC installation typically runs $4,500 to $9,000 for a standard-efficiency 2–3.5 ton system with existing ductwork. Adding ductwork, choosing high-efficiency equipment, or a first-time install (new line set, electrical, and pad) pushes the total higher.
How much does a new AC unit cost installed?
Installed, expect about $2,000 per ton as a rough guide — so a 3-ton central AC lands near $6,000. The equipment alone is only part of it; labor, refrigerant lines, electrical hookup, permits, and startup testing make up the rest of the installed price.
Does installing AC require new ductwork?
Only if you don't already have ducts, or the existing ones are wrong for the new system. A like-for-like replacement reuses good ducts. A first-time install in a home without ducts needs them added — price that separately with the Ductwork Cost Calculator — or consider a ductless mini-split.
Is installing AC cheaper during a furnace replacement?
Yes. Doing both at once shares the labor, the crane/lift, the permit, and the startup visit, so a combined AC-plus-furnace install costs less than two separate jobs. That's why full-system quotes often look like a better value per piece of equipment.
What drives AC installation cost the most?
In order: system type and size, efficiency tier, whether ductwork is needed, and your local labor market. A new install (versus a straight replacement) also adds line set, electrical, and a pad. Equipment brand and warranty matter too, but scope and region move the number most.
Is a ductless mini-split cheaper to install than central air?
For a single zone, often yes — a mini-split skips ductwork and runs roughly $3,000 to $6,000 installed. But multi-zone mini-split systems (one head per room) can match or exceed central air, so compare total installed cost for the areas you actually need to condition.
Quoting an install? Turn the ballpark into a signed quote.
This page gives homeowners a budget — TradesQuote gives contractors the winning quote. Describe the install or upload photos, and our AI builds the full line-item estimate: equipment, labor, line set, electrical, permits, and disposal, with quantities and unit prices validated by a built-in quality control agent.
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