Ducts, air quality and controls

All guides in this section

Ranges show what most homeowners pay, including installation or labor unless the guide says otherwise.

• Ductwork replacement cost$1,400–$5,600
• Air duct cleaning cost$300–$700
• Dryer vent cleaning cost$80–$185
• Duct sealing cost$400–$2,700
• HVAC zoning system cost$1,700–$4,500
• Thermostat installation cost$140–$350