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.
Sealing the Gap Where Lines Enter Your Home
Every line set has to pass through an exterior wall or foundation somewhere to connect the outdoor condenser to the indoor coil, and that penetration point is a common source of problems that have nothing to do with the refrigerant circuit itself but affect the home around it. An improperly sealed penetration lets outside air infiltrate around the line set, working against your system's efficiency by allowing conditioned air to escape or unconditioned air to enter near the connection point. It also creates a direct entry path for pests, and Central Texas is home to fire ants, roaches, and other insects that readily find their way through even small gaps around a line set sleeve.
We see two common failure patterns at these penetrations. The original sealant, often a basic caulk or expanding foam not really suited for long-term outdoor exposure and the vibration a running line set transmits, degrades and cracks over years, opening a gap even though it looked fine when installed. The other pattern is a penetration that was never properly sealed at all, just a rough hole with the line set pushed through and no real closure around it, something we still find surprisingly often on older installations or after DIY line set work. Either way, the result is the same: an open path for air, moisture, and pests directly into the wall cavity or crawlspace.
Proper sealing uses a combination of an escutcheon plate or line set sleeve fitted around the penetration, backed with a weatherproof, UV-stable sealant rated for exterior use and rated to flex with temperature-driven expansion and contraction of the line set itself, since a rigid sealant that cracks under thermal movement fails the same way the original caulk did. We also check the suction line insulation right at the penetration point, since insulation that's compressed or torn where it passes through the wall is a common spot for both energy loss and condensation dripping inside the wall cavity. Given how common fire ant colonies and other pest pressure are throughout Williamson County, a properly sealed line set penetration is a small detail that prevents a genuinely disruptive problem, we've seen ant colonies establish themselves inside wall cavities and even inside outdoor unit electrical compartments after gaining entry through an unsealed line set opening.
Line Set Sealing Questions, Georgetown TX
AC Not Cooling? Low Refrigerant?
EPA certified technicians. We find leaks, fix them, then recharge, in that order.