Heat pumps are the fastest-growing comfort upgrade on Long Island, and for good reason: one system handles both heating and cooling, the operating cost is competitive with gas, and there's a meaningful stack of rebates and tax credits available right now. The question most homeowners actually want answered is simpler than the brochures make it sound: what does this cost?
Installed cost ranges (before incentives)
Every home is different — equipment tier, system size, duct condition, electrical service, and labor difficulty all move the number. The ranges below are typical installed prices for Long Island homes, not guarantees:
- Ductless mini-split, single zone: roughly $4,500 – $7,500 installed.
- Ductless multi-zone (3–4 heads): roughly $12,000 – $22,000 installed.
- Ducted air-source heat pump replacing a central AC + furnace: roughly $14,000 – $26,000 installed.
- Cold-climate heat pump with backup electric or gas: roughly $16,000 – $30,000 installed.
Premium variable-speed, fully-zoned, or whole-home retrofits with duct modifications can land above these ranges. A quality installer will give you a fixed written quote after seeing your home, not a phone estimate.
The federal tax credit (Inflation Reduction Act)
The IRA's 25C Energy Efficient Home Improvement Credit gives homeowners up to $2,000 back on a qualifying heat pump installation. It's a tax credit — meaning it directly reduces what you owe the IRS — not a deduction. The equipment has to meet specific efficiency requirements (generally CEE highest-tier), and you claim it the year the system is placed in service. Your installer should be able to confirm whether the model they're quoting qualifies.
PSEG Long Island rebates
PSEG Long Island runs ongoing rebate programs for high-efficiency heat pumps and ductless systems through their Home Comfort program. The exact amount depends on equipment type, capacity, and current program year, but rebates for whole-home heat pump installations have historically run into the thousands of dollars. Because PSEG program details change from year to year, always confirm the current incentive with your contractor before signing.
NYSERDA Clean Heat program
NYSERDA's Clean Heat program offers additional per-ton incentives for air-source and ground-source heat pumps installed by participating contractors. These are typically paid directly to your contractor and show up as a line-item discount on your quote, not a check in the mail. Stacking NYSERDA Clean Heat with PSEG Long Island and the federal tax credit is where the real savings come from.
What actually affects your price
- System size — based on a real Manual J load calculation, not square footage.
- Existing ductwork — leaky or undersized ducts may need sealing or replacement.
- Electrical service — older 100-amp panels sometimes need upgrades.
- Equipment tier — single-stage vs. two-stage vs. variable-speed inverter.
- Cold-climate rating — needed if you want to run the heat pump down into single digits without backup.
Ready when you are
Talk to a real Long Island HVAC tech
Same-day service across Nassau and Western Suffolk. No pressure, no surprise fees — just an honest assessment and a written quote.