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

Installing a new AC and furnace is priced after an in‑home assessment, because the final cost depends on system size, efficiency, ductwork, and installation complexity. The largest drivers are the tonnage and AFUE/SEER2 ratings you choose and whether existing ducts and electrical are ready for the new equipment. We install systems across the Denver metro area and match equipment to each home’s layout for comfort and efficiency. Our technicians assess your current setup, provide a detailed report, and help you decide whether to replace both units, just one, or repair.

What usually changes the number:

• Home size and heating/cooling load requirements
• Efficiency level, brand tier, and included warranties
• Ductwork condition or redesign, condensate and line‑set needs
• Installation access, code upgrades, and add‑ons (thermostat, IAQ)

Current offer: $1,500 off an AC and furnace bundle (expires 2026-05-06). Final pricing is confirmed after an on-site inspection. Schedule an in-home assessment to get a firm, itemized quote for your home.

Updated: 2026-04-28

Need help in Denver, CO? Call (720) 994-7055 or book online. “Use Brothers for a no hassle, no worry, professional installation.” — Jason M.