AC Repair Services › AC Refrigerant Recharge
AC Refrigerant Recharge in McKinney, TX
A refrigerant recharge isn't something that happens on a schedule — refrigerant doesn't get used up like fuel. If your system is low, there's a leak somewhere, and adding refrigerant without finding it just buys time. A proper recharge means locating and repairing the leak first, then restoring the charge to manufacturer specification.
McKinney AC Repair Pros provides AC refrigerant recharge for homeowners across McKinney, TX. Call for a free inspection and a written quote before any work begins.
When to Call
When You Need AC Refrigerant Recharge
- The air coming from your vents isn't as cold as it used to be in summer
- Your system runs continuously but the house temperature never drops to setpoint
- Ice is forming on the refrigerant lines or the indoor coil
- You hear a bubbling or hissing noise near the indoor or outdoor unit
- A technician previously told you the system was low but didn't find the leak
- Your outdoor unit is running but barely affecting indoor temperature on a 95-degree day
How It Works
Our Process for AC Refrigerant Recharge
- 1
System Pressure Check
We connect gauges to measure suction and discharge pressures. Low refrigerant shows a clear pressure signature. This confirms the diagnosis before we go further.
- 2
Leak Search
We use an electronic leak detector and UV dye to find where refrigerant is escaping. Common locations are the evaporator coil, Schrader valves, and flare fittings.
- 3
Leak Repair
Small leaks at fittings or valves can often be repaired on the same visit. Coil leaks are more involved — we'll be upfront about what that repair looks like and costs.
- 4
Refrigerant Recovery if Needed
If the system needs to be opened for a coil repair, existing refrigerant is recovered into a certified container. Venting refrigerant is illegal and we don't do it.
- 5
Recharge to Specification
We add refrigerant by weight to the manufacturer's exact specification, not by feel. Overcharging causes compressor damage. Getting this right matters more than getting it done fast.
- 6
Performance Verification
After recharging, we measure supply air temperature and verify the system is maintaining the proper temperature differential between supply and return before we leave.
What's included
- Manifold gauge set readings and system pressure diagnosis
- Electronic leak detection sweep of accessible refrigerant circuit components
- Leak repair at fittings, valves, or accessible line connections
- Refrigerant recharge by weight to manufacturer specification
- Post-charge temperature differential verification at the air handler
- UV dye injection for future leak tracking if source isn't immediately found
What's not included
- Evaporator coil replacement if the coil itself is leaking — that's a separate repair with its own scope
- Refrigerant recovery and recharge after a coil or major component replacement — priced with that repair
- Duct sealing or airflow fixes that may be contributing to system underperformance
Real Situations
Common Scenarios in McKinney
A McKinney homeowner notices their upstairs is not cooling properly in July and finds ice on the refrigerant line outside.
We turn the system off to let ice melt before running diagnostics — checking a frozen system gives inaccurate readings. Once thawed, we check pressures, find the leak, and make the repair before recharging.
A homeowner had refrigerant added by another company last summer and is calling again with the same symptoms.
This tells us the leak was never found or repaired. We start with a thorough leak search rather than just adding refrigerant again. Repeating a band-aid fix wastes money and eventually kills the compressor.
A homeowner with a system that uses R-22 refrigerant needs a recharge on a unit that's otherwise in decent shape.
We discuss the reality of R-22 availability and cost before proceeding. If the system is otherwise sound and the leak is repairable, a recharge can extend its life. If the coil is leaking, we walk through the replacement math honestly.
McKinney Context
Why this matters in McKinney
McKinney summers put AC systems under sustained stress from May through September. That constant run time accelerates wear on coil connections and Schrader valves, which are the most common leak points on local systems. Homes built in the mid-2000s to early 2010s are now old enough that original evaporator coils sometimes develop pinhole leaks — a pattern we see regularly in this market.
Straight Talk
About pricing & scope
Recharge cost depends on how much refrigerant the system needs and what type it uses. R-22 systems cost more to service than modern R-410A or R-454B systems due to refrigerant availability. If a coil leak is found, the repair scope and cost changes significantly — we'll tell you before proceeding, not after.
What This Fixes
Problems We See in McKinney
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