What Is the Average HVAC Installation Cost for a New System?

The average HVAC installation cost for a new system is not a single fixed price; Ostrom provides a firm quote after an in-home assessment. Costs are shaped by the equipment match and the scope of work your home needs to run it safely and efficiently. In our field experience, ductwork condition can move a quote more than the logo on the equipment. If your current system has major failures or is nearing end of life, replacement often makes more long-term sense than repeated repairs. We install systems across the Roanoke area and often work in homes near Callaway. We offer free estimates for new system installations.

Expect variation based on these common factors:

• System type and size (AC, heat pump, ductless, furnace) and efficiency rating
• Ductwork changes or sealing, and needed electrical or refrigerant line updates
• Installation complexity (attic/basement access, pad or condensate needs)
• Options like zoning, indoor air quality add-ons, or smart controls

Schedule an in-home assessment to receive a written, itemized quote you can rely on. <br/> Updated: 2026-04-28 <br/> Need help in Callaway, VA? Call 5406851594 or book online.