24/7 · the part that makes the cold
Evaporator Coil Repair & Replacement in Katy, TX
The evaporator coil is where your AC actually produces cool air. When it leaks, freezes or fouls, the rest of the system can run perfectly and you'll still get nothing.
Why the coil fails quietly
Cooled air attracts water vapor, which condenses and drips onto the coil. Normally that moisture evaporates harmlessly — but when something's off, it lingers: bacteria and mold build up and spread a foul smell through the house, or the water sits long enough on the naturally-freezing coil surface to turn to ice. Persistent ice blocks all airflow — no more cool air, however hard the system runs.
Refrigerant leaks are the third quiet failure: the system cools worse and worse, and topping off just delays the same decline. A trained technician repairs the leak first, then tests and recharges.
Call at the first sign
An evaporator coil issue rarely fixes itself and usually compounds — ice strains the blower, moisture feeds mold, leaking refrigerant erodes efficiency. We answer 24/7; when you notice a cooling issue, we'll be right out to troubleshoot and fix the problem.
Serving homes and businesses across Katy and the surrounding West Houston communities.
What we handle
Evaporator Coil Services work we handle every week
Coil Cleaning
Condensed moisture on a fouled coil breeds bacteria and mold — professional cleaning removes the buildup and the odor with it.
Refrigerant Leak Repair
Adding refrigerant to a leaking coil solves nothing — we repair the leak, then test and recharge the system properly.
Frozen Coil Diagnosis
Ice on the coil blocks all airflow. We thaw it, then find the airflow or refrigerant cause so it doesn't refreeze next week.
Coil Repair
Damaged fins, corrosion and connection issues repaired where the coil is still viable.
Coil Replacement
When corrosion or leak history makes repair a bad bet, we replace the coil — matched to your system's capacity.
Whole-System Check
A coil symptom sometimes has an upstream cause — we troubleshoot the rest of the AC system in the same visit.
Triage
Evaporator coil warning signs
The rest of the AC can seem fine while the coil quietly fails — these are the tells.
- What you noticeNowSystem runs but no cool air arrivesWhat it usually meansA failed, frozen or fouled coilWhat we doTroubleshoot the coil first — it's the component that makes the cold
- What you noticeNowIce visible on the indoor unit or linesWhat it usually meansAirflow restriction or low refrigerant freezing condensationWhat we doThaw, then fix the root cause — ice always comes back otherwise
- What you noticeMusty or foul smell when the AC runsWhat it usually meansBacteria and mold on a chronically wet coilWhat we doProfessional coil cleaning
- What you noticeAC needs refrigerant again and againWhat it usually meansA coil leak — refrigerant doesn't get consumedWhat we doRepair the leak, then test and recharge
- What you noticeCooling capacity slowly decliningWhat it usually meansFouling or a slow leak eroding heat transferWhat we doInspection before the decline becomes a failure
Why Katy calls us first
3,681 reviews, 4.9 stars, 25 years
24/7 response
Notice a cooling issue at any hour — we'll be right out to troubleshoot and fix it.
Root-cause repairs
We don't just thaw ice or top off refrigerant — we fix what caused it, so the symptom doesn't return.
Coil and full-system expertise
Ready to repair the coil — or whatever else in the AC system turns out to be the actual problem.
Licensed HVAC technicians
TACLB119162E — trained for refrigerant handling and repair.
Common questions
Evaporator Coil Services in Katy — answered
Don't see your question? Ask a real person — we answer the phone 24 hours a day, every day of the year.
281-601-1513Why is my AC blowing warm air even though it runs?
The evaporator coil is the first suspect — it's the component that produces cool air. A frozen, fouled or leaking coil stops cooling even when everything else runs perfectly. We troubleshoot it 24/7.
Can I just add refrigerant myself?
If the system is low, it's leaking — refrigerant isn't consumed in normal operation. Adding more without repairing the leak wastes money and delays the same failure. A trained technician repairs the leak, then tests and recharges.
Why does my AC smell musty?
Condensation that lingers on the coil breeds bacteria and mold, and the blower spreads the smell through the house. A professional coil cleaning removes the buildup — and we check why the moisture isn't evaporating as it should.
What makes evaporator coils freeze?
The coil surface is naturally cold — at or below freezing. Restricted airflow (dirty filter, weak blower) or low refrigerant lets condensation sit and freeze. The ice then blocks airflow entirely. We thaw it and fix the underlying cause.
Evaporator Coil Services across West Houston
Dispatching from Katy — not a call center across town.
Related heating & air services
All heating & air services →No heat or no cooling right now?
We answer the phone 24 hours a day, 7 days a week — including holidays.
281-601-1513