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

The cost to install a new central AC and furnace is confirmed after an in-home evaluation, with clear, itemized pricing once we right-size the equipment and check the ductwork. Price swings mostly with home size and the system design needed for efficient comfort. We pair top brands like Trane, Mitsubishi, and Daikin with well-planned ducts for lasting results. Our team regularly completes full system installs across King and Snohomish County homes. Eligible customers can use a $75 annual loyalty credit toward new equipment and installation.

Key cost drivers we confirm during the visit:

• Home size and cooling tonnage.
• Furnace BTU and staging.
• Duct condition or changes.
• Efficiency targets and sound level.
• Electrical, gas, or vent updates.

Book an on-site assessment to lock the quote and right-size your system. <br/> Updated: 2026-04-10 <br/> Need help in Redmond, WA? Call (425) 616-3318 or book online.