AC Repair Services › AC Leak Detection Service
AC Leak Detection Service in Arlington, TX
Leak detection means systematically locating where refrigerant is escaping from a sealed system. Refrigerant doesn't just evaporate — if a system keeps losing charge, something is physically leaking. Finding it requires electronic detectors, UV dye, and sometimes pressure testing, depending on where the leak is suspected.
Arlington AC Repair Pros provides AC leak detection service for homeowners across Arlington, TX. Call for a free inspection and a written quote before any work begins.
When to Call
When You Need AC Leak Detection Service
- You had the system recharged but it lost cooling again within the same season
- A technician confirmed low refrigerant but couldn't find an obvious leak source
- You see an oily film or residue on or around the refrigerant line connections
- Your evaporator coil has been replaced once already for a pinhole leak
- The system loses charge over winter and won't cool properly each spring
- You want to know if a leak exists before investing in major repairs
How It Works
Our Process for AC Leak Detection Service
- 1
System History Review
We ask how often the system has needed refrigerant and what's been done before. That history points us toward the most likely leak locations before we start searching.
- 2
Electronic Detection Sweep
We use an electronic refrigerant detector to sweep the evaporator coil, line set connections, Schrader valves, and condenser coil. The detector alerts near refrigerant vapor concentration.
- 3
UV Dye Inspection
If the system has dye already installed, we inspect with a UV light. If it doesn't, we can add dye and schedule a follow-up after the system has run, which makes slow leaks visible.
- 4
Pressure Testing When Needed
For systems that have been fully evacuated, nitrogen pressure testing can reveal leaks that are too slow to detect electronically with refrigerant still in the system.
- 5
Leak Location Report
We tell you exactly where the leak is, how significant it appears, and what the repair options are. We don't give vague answers like 'somewhere in the coil.'
- 6
Repair or Referral
If we can repair the leak on-site — a fitting, Schrader valve, or accessible line — we do. If it's a coil with multiple pinhole leaks, we present replacement options honestly.
What's included
- Electronic refrigerant detector sweep of all accessible system components
- UV light inspection if dye is already present in the system
- Nitrogen pressure test when system conditions make it the right tool
- Written summary of leak location and severity
- Honest recommendation on repair versus component replacement
What's not included
- Refrigerant recharge after leak repair — that's priced separately
- Coil or line set replacement — leak detection finds the leak, repair is a separate scope
- UV dye injection on every visit — we add it when it's the right diagnostic tool, not by default
Real Situations
Common Scenarios in Arlington
A homeowner in Arlington Heights had refrigerant added twice in two years and the system is cooling poorly again heading into summer.
Two recharges in two years is a clear sign of an ongoing leak. We do a full detection sweep rather than just adding more refrigerant. If we find the source, we explain repair options. If the coil is the culprit, we walk through whether repair or replacement makes more sense for that system's age.
A homeowner can't find the leak despite an oily smear near the outdoor unit line connections.
That oily residue is often compressor oil migrating with escaping refrigerant. We check that fitting carefully with the electronic detector and UV light. Fitting leaks are often repairable on the spot once we confirm that's the source.
A homeowner is preparing to sell a home and wants to know the AC system's condition before listing.
We run a full leak detection sweep and give a clear status report — either the system has no detectable leak, or here's where the leak is and what it would cost to address. That documentation is useful for disclosure and negotiation purposes.
Arlington Context
Why this matters in Arlington
Evaporator coil leaks are common in North Texas because of the formicary corrosion that affects copper coils in homes with certain air quality conditions — it's a known regional problem, not just bad luck. Arlington's older housing stock, particularly homes built in the 1990s, has a high rate of original coils that are now showing pinhole failures. The combination of long run times and temperature swings accelerates the wear on line set fittings at the outdoor unit.
Straight Talk
About pricing & scope
Leak detection is not always definitive on the first visit. Very slow leaks may not register on an electronic detector until the system has run with UV dye for several weeks. We'll tell you if that's the situation and what the follow-up process looks like, rather than guessing at a location we can't confirm.
What This Fixes
Problems We See in Arlington
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