How Much Does HVAC Installation Cost With Ductwork Included?

HVAC installation with ductwork is custom-priced after an in-home assessment because total cost depends on the system design and the scope of ductwork. The biggest price swing usually comes from how much of the existing duct must be replaced or redesigned for proper airflow and code. We use the same survey-and-design approach for homeowners we serve around Lake Mary. A seasoned tech will also look for pressure imbalances; a right-sized return can fix noise and comfort without overspending. Financing is available (subject to approval), and current promos may lower your total (e.g., $1,500 off on qualifying systems, up to a $1,200 instant rebate, or a free smart thermostat on qualifying systems).

Your quote typically reflects:

• Duct length, condition, and sealing needs
• Number and placement of supply/return vents
• Attic/crawlspace access and insulation level
• Equipment type, efficiency, and required code updates

Schedule an on-site evaluation to get a firm written price after load calculations and a duct inspection. <br/> Updated: 2026-05-18 <br/> Need help in Lake Mary, FL? Call 407-584-1433 or book online. Installed new system within 24 hours after my 20 year old AC died. — Ron I.