How much does air duct replacement cost for a typical home?

Air duct replacement cost for a typical home is determined after an on-site inspection and a free replacement estimate from Sierra Air Conditioning & Plumbing. The biggest cost driver is home size and access, which set how much ducting and labor are required. We frequently replace duct systems in North Las Vegas homes, where hot attics and long runs can affect material choices. For transparency, we provide an itemized proposal and back new duct installations with our published Lifetime Leak Guarantee.

Your price mainly depends on:

• Total duct length and number of supply/return runs
• Duct type (flex vs. sheet metal) and insulation level
• Attic/crawlspace access and code upgrades needed
• Added scope like sealing, balancing, or adapting to zones

Schedule an in-home assessment to get a precise, itemized quote. <br/> Updated: 2026-03-31 <br/> Need help in North Las Vegas, NV? Call (702) 710-9106 or book online. "We recently had our old duct work replaced by Sierra." — Harry Southard