What's in a fair HVAC quote: line items to expect

A complete quote usually lists

• Equipment with model numbers (outdoor unit, indoor coil or air handler, furnace if any)
• Capacity and efficiency ratings, ideally with an AHRI certificate number
• Refrigerant line set: new or reused, and flush if reused
• Pad, disconnect, electrical, and condensate handling
• Thermostat (included or reused)
• Permit, inspection, startup and commissioning
• Removal and disposal of old equipment
• Labor warranty term and what it covers
• Price, deposit, and the payment schedule

Red flags

• One lump-sum price with no model numbers
• "Today only" pricing pressure
• No permit, or the homeowner is asked to pull it
• Sizing by square-foot rule of thumb only, with no measurements taken
• Large deposit before equipment is ordered

For published national price ranges by system, see our cost guides for central AC, heat pumps and furnaces.