How much does it cost to install a new AC and furnace?

The cost to install a new AC and furnace is set after an on-site evaluation; we provide free estimates for HVAC replacements with flat-rate pricing. Total price depends most on system size and efficiency, any ductwork changes, and overall installation complexity. We routinely size and quote systems for homes across New Jersey to balance comfort, efficiency, and budget. A right-sized system often saves more over a decade than an oversized unit that short-cycles. You’ll get a clear, written quote with repair-or-replace options before any work begins, and financing is available for larger projects.

Key factors that move pricing up or down:

• Tonnage and AFUE/SEER2 ratings selected
• Ductwork condition or new runs/sealing required
• Electrical, refrigerant line, or venting upgrades
• Add-ons like smart thermostats, humidifiers, or air cleaners

Schedule a free, in-home replacement estimate to get an exact price in writing.

Updated: 2026-05-04

Need help in Fairfield, NJ? Call (908) 274-0866 or book online.