Diagnostic (service call) fee – This covers a licensed HVAC tech coming to your home, testing the system, and identifying the fault. In Arizona, shops commonly charge $79–$129 during regular hours and $129–$249 for 24/7 emergency calls. Many apply this fee as a credit toward the repair if you approve it on the spot—ask to see that line on the invoice.
Repair quotes – After diagnosis, you should receive a written, itemized estimate that includes:
- Problem found (e.g., failed capacitor/contactor, refrigerant leak, iced evaporator coil).
- Parts with names/part numbers and any warranty (parts & labor).
- Labor time/rate and whether the diagnostic fee is credited.
- Total out-the-door price and timeline (same-day, parts availability).
Replacement / installation quotes (AC, heat pumps, or ductless mini-splits) should list:
- Model numbers (indoor & outdoor), tonnage, and SEER2 efficiency.
- Scope of work: remove & haul-away, new pad/whip/disconnect, line-set flush/replace, drain & float switch, thermostat, basic duct adjustments, start-up & charge per manufacturer specs.
- Permit & inspection (most AZ cities require it) and who pulls it.
- Warranties (manufacturer parts + contractor labor) in years.
- Rebates & financing (utility/manufacturer promos, APR/term) and the final price after incentives.
Free estimate vs. paid diagnostic – “Free estimates” usually apply to equipment replacement. Repairs generally require a paid diagnostic first so the tech can test and quote accurately.
Pro tip: Get 2–3 written quotes and compare apples-to-apples (same SEER2, tonnage, scope, warranties). Always verify the contractor’s Arizona ROC license before approving work.
Note: Prices vary by brand, availability, and distance. Same-day and after-hours service may include an additional surcharge.