| Quick facts | Answer |
|---|---|
| Cost range | $150-$260 to thaw and diagnose; replacement $1,700-$2,875 |
| Time | Usually one visit; replacement may need more than one |
| Who's qualified | Texas ACR contractor license; technicians must register with the state |
Why does an evaporator coil freeze in El Paso?
El Paso has hot, dry summers with humidity around the mid-30% to low-40% range. Low humidity plus heavy cooling demand can still lead to frozen-coil problems when airflow or refrigerant issues occur. During the June-to-August monsoon season, brief intense downpours bring somewhat higher humidity.
What causes a coil to refreeze after it is thawed?
A coil that refreezes after thawing points to an underlying cause that was not fixed, most commonly a refrigerant leak. Other causes include airflow problems and a dirty coil. The fix is to thaw the coil first, then correct the root issue.
When is evaporator coil replacement needed instead of a thaw?
If the coil is damaged beyond repair, replacement runs $1,700 to $2,875 in a 2026 price guide. That is far more than a $150 to $260 thaw-and-diagnose visit. Replacement may take more than one visit because it involves parts, brazing, evacuation, charging, and verification.
Who can legally repair an AC in El Paso, TX?
In Texas, anyone contracting to install, repair, or maintain air-conditioning systems generally needs a state ACR contractor license, with a $115 application fee. Assistants must register as technicians ($20 fee, valid 1 year), and technicians may not advertise AC services.
What to do next
- Turn the AC off and let the coil thaw before the pro arrives, since thawing is the first step of the fix.
- Ask the pro for proof of a Texas ACR contractor license before any refrigerant work starts.
- Request the quote break out leak detection separately, since it often adds $130 to $300.
- If the coil refreezes after the visit, ask specifically about a refrigerant leak test.
- Call (915) 286-7051 or email [email protected] for a free quote from an independent, licensed, insured AC repair contractor.
El Paso Air is a free referral service: an independent contractor does the work and may pay us a referral fee. You never pay us anything.
