Westchester Comfort HVAC · Westchester County
Typical central AC replacement: $7,000–13,000 installed; ductless $4,500–24,000 by zone count
Call (914) 353-4849Written pricing at the design stage. No obligation.
A central air replacement in Westchester County — new condenser and matched indoor coil on existing ductwork — typically runs $7,000–13,000 installed in 2026. Homes without ducts go ductless: a single-zone mini-split lands around $4,500–7,000, and a multi-zone system covering the whole house $12,000–24,000. Repairs run from a $250 diagnostic to $1,500–2,500 for a compressor.
The ranges are wide because cooling is sized to the house, not sold by the box. Westchester Comfort HVAC does a load calculation on every install and quotes a fixed written number — these are the ranges jobs actually land in across Westchester County.
| Line item | Typical range | What drives it |
|---|---|---|
| Central AC replacement (2–4 ton) | $7,000–13,000 | Condenser, matched evaporator coil, line-set flush or replacement, and electrical. Efficiency tier (14.3–18+ SEER2) and tonnage drive the spread. |
| New ductwork (if needed) | $4,000–10,000 | Only for homes adding central air for the first time or replacing undersized, leaking ducts. Attic runs price lower than finished-space runs. |
| Ductless single-zone mini-split | $4,500–7,000 | One outdoor unit, one indoor head. The right answer for an addition, a finished attic, or one hot room. |
| Ductless multi-zone (3–5 heads) | $12,000–24,000 | Whole-home cooling without ducts. Head count and line-set length drive the range; cold-climate heat-pump models cost more but also heat. |
| Repairs | $250–2,500 | Capacitors and contactors at the low end; refrigerant leaks, blower motors, and compressors at the high end. On an R-22-era system, a $2,000 repair is rarely the right money. |
Typical central AC replacement: $7,000–13,000 installed; ductless $4,500–24,000 by zone count
A properly sized 3-ton system costs less to buy and run than an oversized 4-ton that short-cycles. Higher SEER2 tiers add $1,500–4,000 and pay back fastest in homes that run cooling hard.
Existing ductwork in good condition is the biggest cost saver. Leaky ducts get sealed or replaced, or the efficiency you paid for never shows up.
A cold-climate heat pump replaces the AC and the heating system at once, and qualifies for NYS Clean Heat rebates of $2,500–12,000 that a straight AC does not. Often the better math if the furnace is also aging.
Replace in spring or fall. The first heat wave books every installer solid and emergency replacements pay for it.
A replacement on existing ducts runs $7,000–13,000 installed. Adding central air to a home without ducts adds $4,000–10,000 for ductwork, which is why many homes here go ductless instead.
For one or two rooms, yes — a single zone is $4,500–7,000. For a whole house, a multi-zone system costs about the same as central air plus ductwork, with higher efficiency and room-by-room control.
Not for a conventional AC. Heat pumps that cool and heat qualify for NYS Clean Heat rebates through your utility — $2,500–12,000 depending on the system. We quote both options.
Under 10 years old with a minor fault: repair. Over 12–15 years, using R-22, or facing a compressor or coil failure: replacement is almost always the cheaper five-year decision.
3D design with a written number — no obligation, no pressure.
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