When an evaporator coil develops leaks or corrosion beyond spot repair, replacement restores full cooling capacity and stops recurring refrigerant loss.
Active units staged across Houston, Katy, Sugar Land & The Woodlands.
Spot repairs aren't always the better value.
A single accessible leak is often worth repairing, but formicary corrosion — which causes many tiny pinhole leaks throughout a coil — typically means more leaks will continue appearing, making replacement the better long-term value.
| Houston HVAC Services | Industry Average |
|---|---|
| Free diagnostic with any repair | $89–$150 diagnostic fee |
| Live line answered 24/7 | Voicemail after 6pm |
| ~35-min average dispatch | 2–4 hour arrival windows |
| Written price before repair starts | Verbal quote, surprise total |
| NATE-certified technicians | No certification requirement |
| 1-year written repair warranty | 30-day or no warranty |
Every technician holds NATE certification and Texas TACLB licensing before ever stepping on your property.
Live tech walks you through breaker and thermostat checks while a truck is routed.
Refrigerant pressure, electrical, and airflow tested — not a guess.
You approve a flat, itemized price before any part is touched.
Most repairs completed same-visit from a fully stocked truck.
We confirm supply-air temperature drop before we leave.
Fast diagnostics for warm air, no cooling, and dead systems.
SIZED RIGHTLoad-calculated systems, not oversold tonnage.
SEASONALTune-ups that catch failures before peak summer.
WINTER READYFurnace and heat pump service for cold fronts.
Nights, weekends, and holiday dispatch.
Sealing and repair for even cooling and lower bills.
AIR QUALITYPurifiers and humidity control for cleaner indoor air.
COMMERCIALRooftop units and multi-zone systems for facilities.
Pricing depends on coil size and system type.
Standard-size residential evaporator coil replacement.
Larger tonnage systems requiring bigger coils.
Additional refrigerant recharge cost if not included in base quote.
Certain household chemicals and building materials release compounds that corrode coils from the inside.
Houston's humidity keeps coils wet more of the year, accelerating corrosion.
Coils over 10-12 years are more prone to failure regardless of other factors.
Some coil materials and coatings resist corrosion better than others.
"AC died at 9pm in July. Tech was at our door in 30 minutes and had it running again within the hour."
"Gave us the price upfront, no surprise charges. Compressor was clearly explained before they touched it."
"Called three companies at 11pm — only one picked up. Real technician walked me through safety steps."
Multiple leak points, visible corrosion, or a system that's needed repeated leak repairs are strong signals replacement is the better value.
It's a specific type of corrosion that creates tiny, ant-tunnel-like leak paths through coil copper, often caused by certain chemical exposures.
Yes, in most cases the coil can be replaced independently, assuming a compatible match is available.
Most residential coil replacements are completed within a single day.
Yes, we provide warranty coverage on both the coil and our installation labor.
Same-day dispatch open now across Houston, TX.