The cost to install central air with ductwork varies widely by home and is confirmed only after an on-site evaluation and free estimate from Bob Garrett Services. Most of the price comes from how much new ductwork is needed and properly sizing the system to your home.
A few key factors that drive price:
- Full new duct system vs. reusing or modifying existing ducts
- Home size and room count, which affect system capacity (tonnage)
- Added returns, zoning, or airflow balancing to fix hot/cold spots
- Electrical upgrades, condensate routing, and attic/crawlspace access
A technician’s note: in older homes, sealing and balancing ducts often improves comfort more than simply upsizing the unit. Our team installs systems across the New River Valley and sizes equipment to handle local summer humidity without overcooling. Final pricing is confirmed after an on-site inspection with an itemized proposal.
Updated: 2026-06-30
Need help in Christiansburg, VA? Call 540-583-4765 or book online.