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.
Evacuation Standards We Follow on Every Job
System evacuation is the process of removing air, moisture, and other non-condensable gases from a refrigerant circuit using a vacuum pump before charging with refrigerant. It's required any time a system is opened for repair, whether that's a coil replacement, line set repair, compressor swap, or a brand new installation, because atmospheric air and moisture inevitably enter the circuit the moment it's opened, no matter how carefully the work is done. Skipping or rushing evacuation is one of the most common shortcuts that leads to callback problems weeks or months later, since the effects of trapped air and moisture aren't always immediately obvious at startup.
We use calibrated digital micron gauges rather than relying on standard refrigerant gauges, which aren't precise enough at the deep vacuum levels needed to confirm the system is properly evacuated. Our standard target is 500 microns or lower, held steady for a period after isolating the vacuum pump from the system, which confirms both that moisture has fully boiled off and that there's no active leak drawing air back in. We connect through both the high and low side service ports with full-size hoses to reduce flow restriction, since a proper evacuation on a residential system typically needs to move a meaningful volume of air and vapor out through relatively small tubing.
Georgetown's rapid residential growth over the past two decades means we perform evacuation on new system installations just as often as on repairs to older equipment, and new installations actually demand the same rigor, since a brand new coil and line set still need to be purged of the air introduced during shipping, storage, and the installation process itself. We also factor in Central Texas's higher summer humidity when planning evacuation time, since more atmospheric moisture is typically present in the air that enters an open system here than in a drier climate, which can mean needing a longer pump-down or a triple-evacuation approach using nitrogen breaks between vacuum cycles on jobs where moisture contamination is a bigger concern, such as after a compressor burnout. We document the final micron reading and hold time on every job as part of confirming the work meets our standard before recharging.
System Evacuation Questions, Georgetown TX
AC Not Cooling? Low Refrigerant?
EPA certified technicians. We find leaks, fix them, then recharge, in that order.