AC repair in Houston commonly starts with a diagnostic fee of $75 to $150, often credited toward the repair. The most common Gulf Coast fixes (condensate drain clears, capacitors, contactors, fuses) typically land in the low hundreds installed, fan and blower motors in the mid hundreds to over a thousand, refrigerant leak repairs from several hundred up, and compressor replacements in the low thousands. Corrosion near the bay pushes some repairs higher. Comparing two quotes on anything over a few hundred dollars is worth the hour.
Typical Houston repair prices by component
Diagnostic or trip fee: commonly $75 to $150 in business hours, higher after hours. Most contractors credit it if you approve the repair on the spot.
Condensate drain clear and flush: often $100 to $300; adding a float switch is similar. Capacitor: typically $150 to $400 installed. Contactor: similar. These are the most common Houston no-cool calls.
Condenser fan motor: commonly $400 to $900. Blower motor: often $500 to $1,500. Control board: typically $400 to $900. Refrigerant leak repair and recharge: commonly $400 to $1,500 for R-410A systems; R-22 systems usually mean replacement.
Evaporator coil: often $1,500 to $3,000. Compressor: commonly $1,800 to $3,500 or more. Both are where a replacement quote belongs on the table.
What pushes a Houston repair bill up or down
Corrosion. Within a few miles of the bay, salt air shortens the life of coils, contactors, and cabinets. Coated-coil replacements cost more but last.
Access and timing. Attic air handlers in 130°F attics take longer in summer. After-hours calls and post-storm backlogs carry premiums.
Warranty. If the system is under a parts warranty, you typically pay labor only. Check the install date on the data plate.
When a repair stops making sense
If the repair quote is more than about a third to a half of a replacement quote and the system is over 12 years old, get the replacement quote before deciding. Houston's nine-month cooling season means a 12-year-old system here has done the work of a 16-year-old system elsewhere.
Compressor failures, coil leaks on R-22 systems, and a second major repair in two summers are the classic replacement triggers.
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