Replace when repairs stop making economic sense, when the refrigerant is obsolete, or when the system can no longer hold humidity. Age alone is not the trigger — but in a climate with a seven-month cooling season, age arrives faster than the national averages suggest.

The Repair Math

A useful test: multiply the repair cost by the system’s age in years. If the result exceeds the price of a new system, replacement is usually the better decision.

A simpler version — if a repair costs more than a third of replacement on equipment past two-thirds of its expected life, you are probably paying to postpone an inevitable purchase.

The scenario worth avoiding is spending significantly on a compressor in year thirteen and replacing the system anyway two summers later. That happens constantly, and it is the most expensive path available.

The Refrigerant Question

This one catches people off guard and often settles the decision.

If your system uses R-22, production has ended. Only reclaimed stock remains and pricing reflects that. A refrigerant leak on an R-22 system frequently becomes a replacement decision rather than a repair decision, because recharging costs a meaningful fraction of a new system and the leak will recur.

R-410A is now being phased down as well, which affects longer-term planning on systems installed within the last fifteen years.

We tell you which refrigerant you have and what it means before you decide.

Humidity Is the Underrated Signal

Most people watch temperature. In a Texas summer, humidity tells you more.

A system that reaches the setpoint but leaves the house feeling clammy has lost the ability to run long enough to dehumidify. Roughly a third of what an air conditioner accomplishes on a humid day is moisture removal, and losing that is a comfort failure even when the thermostat reads correctly.

Households respond by lowering the thermostat, which costs more and does not address the actual problem.

Rising Bills and Longer Runs

Compare this summer’s electric bills to the same months two and three years ago, adjusting for rate changes. A steady climb with no change in habits means the system is working harder for the same result.

Efficiency decline is gradual enough that households acclimate to it, which is why the bill is often the only evidence before something breaks.

Repairs Arriving in Sequence

One failure is normal. A third failure in two years on different components is a pattern — parts of the same age wear out at similar rates.

Capacitor, then fan motor, then a coil leak. Each individually is reasonable to repair; together they are the system telling you where it is in its life.

What Is Not a Reason to Replace

Being honest about this matters as much as the rest.

Rooms that have always been uncomfortable are a ductwork or insulation problem. A new system will not fix them, and any contractor who says otherwise is not diagnosing. Duct sealing is the repair that addresses it, and it costs a fraction of a replacement.

A single component failure on a system under ten years old is a repair. Capacitors, contactors, and fan motors are normal wear items, not end-of-life indicators.

We would rather do a modest AC repair on a system with years left than sell you equipment you do not need.

What Replacement Buys

Beyond reliability, modern variable-speed systems run longer at lower output, which holds temperature steadier and removes far more humidity — the thing that actually determines comfort here.

It is also the natural moment to price a heat pump, which handles heating too and suits our long cooling season and mild winters.

Deciding on Your Schedule

The worst time to make this call is during a July failure. If your system is past twelve and struggled last summer, an evaluation now costs nothing and removes the pressure.

We quote both paths with reasoning attached. Details are on our AC replacements page, and financing is available.

Contact 72 Degrees or call (830) 468-5316.