How much does it cost to install central air with ductwork?

The cost to install central air with new ductwork is set after an in‑home evaluation, and Summers Plumbing Heating & Cooling provides free quotes and written estimates for new AC installations. Price swings most with home size and duct design because airflow needs and material lengths drive labor and equipment. If usable ducts are already in place, equipment-only replacement is usually more economical than a full install. Our team installs systems across the Plainfield area. A well‑planned duct layout often matters more for noise and room balance than the brand on the box. Each project includes clear parts‑and‑labor warranties, and financing options are available for qualified customers.

Key factors that set the final price:

• Square footage and number of conditioned rooms
• Ductwork scope: new trunks/branches, returns, insulation, and access
• System type and efficiency (single‑stage, variable‑speed, heat pump or AC)
• Electrical, thermostat, zoning, and indoor air quality add‑ons

Schedule an in‑home assessment to get an exact, written number before any work starts. <br/> Updated: 2026-05-30 <br/> Need help in Plainfield, IN? Call (317) 765-1855 or book online.