AC repair cost for a typical home unit is finalized after a professional diagnostic, and Cardinal Heating & Air charges a $79 diagnostic fee before any repair pricing. Most of the final price comes from which part failed and how long replacement takes. Repairs often can be completed the same day, while major component failures cost more and may take longer. Current specials may reduce what you pay (for example, $50 Off Any Repair), and Planned Maintenance Program members receive reduced rates for 24/7 emergency service. We service homes across the Seattle area, so parts availability and response times reflect local demand.
What most affects the final repair price:
- The part required (for example, capacitor, fan motor, control board, or compressor)
- Any refrigerant work (leak locating or recharging)
- System age and remaining factory warranty coverage
- Accessibility and after-hours emergency needs
Schedule a diagnostic visit to get an exact, written quote before work begins.
Updated: 2026-07-29
Need help in Seattle, WA? Call (425) 827-9997 or book online.