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

Installing central air with new ductwork includes the equipment plus the ducts; at Service All-Stars, complete air duct installation is $6,495 for up to five runs (R6), and your total system price is finalized after an in-home assessment. Most of the total cost comes from the size and efficiency of the AC or heat pump you choose and how much ductwork your home needs. We install systems throughout the Carson area, so we right-size equipment and lay out ducts to fit local homes. A smaller, well-sealed duct network often cools better than an oversized unit fighting long, leaky runs. If your existing ducts are sound, reusing them can lower cost; if they’re undersized or damaged, replacement is the smarter move.

Key factors that move pricing up or down:

• Number and length of supply/return runs beyond the first five
• Attic/crawlspace access and required sealing/insulation
• Zoning, air quality add-ons, and thermostat upgrades
• Electrical or condensate drain modifications

Financing is available on approved credit. Schedule an in-home evaluation to get a firm, itemized quote. <br/> Updated: 2026-06-07 <br/> Need help in Carson, CA? Call (833) 687-0145 or book online.