Important: Refrigerant work is EPA regulated. ProAir Georgetown technicians hold current EPA Section 608 Universal certification. We recover, recycle, and recharge refrigerant according to federal regulations and never vent refrigerants to atmosphere.
Refrigerant Leak Detection & Testing
Professional leak detection using electronic sniffers and UV dye. Find leaks before recharging, or recharge just moves the problem.
High-sensitivity electronic leak detectors locate small leaks in coils, line sets, and fittings that visual inspection misses.
UV dye injection and black light inspection, effective for finding intermittent or slow leaks that evade electronic detection.
Pressure test refrigerant circuits with dry nitrogen to verify leak-free condition before charging new refrigerant.
Refrigerant Service & Recovery
Proper refrigerant recharge, measured by subcooling and superheat, not just pressure gauges. We charge to manufacturer spec.
EPA-compliant refrigerant recovery before any system work requiring circuit opening.
Deep vacuum pull to remove moisture and non-condensables before refrigerant charge, critical for system longevity.
Extended deep vacuum to achieve proper micron levels, we don't rush this step that protects compressor life.
Convert systems from discontinued refrigerants to approved drop-in or replacement refrigerants.
Line Set Service & Repair
Flush contaminated line sets during compressor replacement to prevent new compressor failure from acid or debris.
Professional braze repair of pinhole leaks and joint failures in copper refrigerant lines.
Repair damaged liquid line sections including crimps, kinks, and corrosion failures.
Replace deteriorated suction line insulation, critical for efficiency and preventing condensation in Georgetown's humid summers.
Seal wall and foundation penetrations around line sets to prevent pest entry and air infiltration.
Install locking valve caps to prevent refrigerant theft and unauthorized access to Schrader valves.
Cooling Circuit Components
Replace leaking Schrader valve cores, a small but common source of refrigerant loss over time.
Install or replace liquid line filter driers, required after any system opening to remove moisture and acid.
Replace leaking or damaged service valves on compressors and line set connections.
Replace failed accumulators that protect compressors from liquid refrigerant slugging.
Replace failed thermostatic expansion valves, a hunting or stuck TXV causes refrigerant distribution problems and efficiency loss.
Repair or replace discharge line mufflers that reduce compressor noise and vibration.
Evaporator & Condenser Coil Service
Clean, inspect, and service evaporator coils, dirty coils are a leading cause of reduced cooling capacity in Georgetown homes.
Replace failed or leaking evaporator coils, including proper refrigerant recovery, installation, and recharge.
Straighten bent evaporator fins to restore full airflow through the coil and recover lost capacity.
Clean condenser coils fouled by Georgetown's cottonwood, dust, and debris, critical for summer efficiency.
Repair pinhole leaks and minor damage in condenser coils when full replacement isn't required.
Deep acid wash for severely fouled condenser coils, removes mineral scale, oxidation, and embedded debris.
Address the root cause of a frozen evaporator coil, low refrigerant or restricted airflow. We fix the cause, not just defrost.
Diagnose and repair the refrigerant or airflow condition causing ice formation on copper suction lines.
Restoring Airflow Through Bent Fins
Evaporator coil fins are thin aluminum sheets, often only a few thousandths of an inch thick, wrapped around the coil's copper tubing to maximize surface area for heat transfer with the passing airstream. That thinness makes them effective at absorbing heat but also makes them easy to bend from handling during filter changes, from debris pulled in by the return air system, or from a technician working in a tight cabinet during a previous service call. Bent fins collapse the small gaps between adjacent fin rows that air needs to pass through, and enough bent fins across a section of the coil create a real airflow restriction, even though the coil itself is otherwise undamaged and leak free.
The effect compounds with dust and pet hair, since a coil with partially collapsed fin spacing traps debris more easily than one with fins in proper alignment, and that combination of restricted spacing plus trapped debris can reduce airflow enough to drop coil temperature below freezing and cause ice formation, mimicking the symptoms of low refrigerant charge even when the charge is perfectly correct. We check for this specifically whenever a system shows reduced airflow or icing without a corresponding charge or leak problem, since treating a fin restriction issue as a refrigerant issue leads to unnecessary refrigerant work that doesn't solve the actual problem.
Repair uses a fin comb, a tool with teeth spaced to match standard fin densities, typically measured in fins per inch, that's drawn through the bent section to gently straighten fins back into alignment without tearing or further damaging the thin aluminum. It's a careful, methodical process working section by section across the coil face, and it's most effective on fins that are bent but not creased or torn, since a crease weakens the aluminum and can eventually crack. Georgetown homes running AC systems for six or more months a year put more cumulative dust and debris through return grilles than systems in milder climates that cycle less, and combined with pet hair, common in most area households, that means fin condition on an evaporator coil often needs attention well before the coil itself is old enough to need replacement.
Fin Straightening Questions, Georgetown TX
AC Not Cooling? Low Refrigerant?
EPA certified technicians. We find leaks, fix them, then recharge, in that order.