AC Repair Services › Refrigerant Leak Repair

Refrigerant Leak Repair in Mesquite, TX

Refrigerant doesn't get consumed — if the system is low, it leaked out somewhere. Adding more refrigerant without finding the leak just means you'll be low again in a few months. We locate the leak, repair it, and then bring the charge back to the correct level.

Call (903) 662-2954

When to Call

When You Need Refrigerant Leak Repair

A technician topped off your refrigerant but the system is low again already
Your AC blows air but it never gets cold enough on hot days
You can see oil residue or staining near the copper lines outside
The evaporator coil keeps freezing even after the filter has been changed
Your system is cooling but the refrigerant pressures are reading below spec
You hear a faint hissing sound near the indoor or outdoor unit

How It Works

Our Process for Refrigerant Leak Repair

1

Pressure test and confirm the leak

We connect gauges and record pressures. Low static pressure on a system that was recently charged confirms refrigerant is escaping. We don't skip this step and assume.
2

Leak search

We use an electronic leak detector and UV dye to find the exact location. Common spots are the evaporator coil, the Schrader valves, and brazed fittings at the line set connections.
3

Repair the leak point

The fix depends on where the leak is. A valve core replacement is quick. A coil leak or a cracked fitting requires brazing. We tell you which situation you're in before we proceed.
4

Pressure test the repair

After the repair, we hold the system under pressure for a period of time to verify the fix held before we add refrigerant. Skipping this step is how you end up with the same problem twice.
5

Recharge to correct level

We add refrigerant by weight or by superheat and subcooling measurements, depending on the system type. We bring it to the manufacturer's spec, not just until the pressures look reasonable.

What's included

Electronic leak detection and UV dye search at all common leak points
Repair of the identified leak location — valve, fitting, or accessible coil
Post-repair pressure hold to verify the fix before recharging
Refrigerant recharge to the correct specification for your system
Final pressure and temperature readings to confirm proper operation

What's not included

Evaporator coil replacement is a separate job if the coil itself is too corroded to repair
Line set replacement is quoted separately if the copper has multiple leak points
We don't offer a leak warranty on coils that are significantly corroded — those need replacement

Real Situations

Common Scenarios in Mesquite

A homeowner near Mesquite's Polo Club area has had refrigerant added twice in two summers by different companies, and the system is low again.

This is a leak that's been masked twice. We run a full leak search, find the source, and repair it rather than add more refrigerant. We also document what we found so the homeowner has a clear record if the coil is approaching end of life.

A homeowner with a 2004 Trane unit finds ice on the suction line and low refrigerant when we check pressures.

We let the system thaw completely before searching for the leak — testing while the coil is frozen gives inaccurate readings. Once thawed, we locate the leak. If it's on an aging evaporator coil, we discuss repair versus coil replacement honestly given the system's age.

Mesquite Context

Why this matters in Mesquite

Formicary corrosion — small pinhole leaks in evaporator coils — is a known issue in the Dallas area, including Mesquite. It's tied to indoor air quality factors and affects copper coils regardless of brand. If your coil is leaking and the system is under 10 years old, it's worth investigating whether a coil warranty applies before paying for refrigerant.

Straight Talk

About pricing & scope

Refrigerant cost varies based on the type your system uses. Older systems using R-22 are more expensive to charge than newer R-410A systems. If we find multiple leak points or the coil is too corroded to hold a repair, we'll tell you before spending money on refrigerant that won't stay in the system.

What This Fixes