Should I repair or replace my air conditioner?
Repair a newer unit with a small, isolated fault. Lean toward replacement when the system is past 10–15 years, uses phased-out R-22 refrigerant, needs a major part like the compressor, or the repair approaches a third of a new system's cost.
Five questions that decide it
- How old is it? Most AC systems here last 10–15 years given our long runtime. Past that, replacement usually wins on reliability and efficiency.
- What refrigerant does it use? Older units run on R-22, which is phased out and expensive — a refrigerant leak on an R-22 system often tips toward replacement.
- How big is the repair? A capacitor or contactor is a routine fix. A failed compressor or evaporator coil is a major cost on an older unit.
- What's it costing to run? A system that's climbing in energy use every summer is quietly costing you the difference a new one would save.
- How's your comfort? Rooms that never cool, constant humidity, or short-cycling point to sizing or age, not just a broken part.
The one-third rule of thumb
A common guideline: if a repair costs more than about a third of a new system and the unit is well into its life, replacement is usually the better money. It's a starting point, not a law — a free written estimate on the replacement lets you compare the real numbers before you decide.
Why Fort Bend is hard on AC
Air conditioners here run March through November, and high humidity makes them work harder to pull moisture out of the air. That sustained runtime wears systems faster than in drier climates, which is why the repair-or-replace question comes up sooner here.
Common questions
Is it worth replacing an AC that still runs?
Sometimes — a 12–15 year old unit that still cools can be quietly using far more energy than a new one, and a single major repair can cost more than the efficiency you'd gain. A written side-by-side estimate makes the call clear.
What's the average lifespan of an AC in Texas?
In Fort Bend's long cooling season, most systems last about 10–15 years. Regular maintenance and correct sizing push them toward the top of that range; neglect and oversizing pull them down.
How we build this guidance
This guide is written and reviewed by the Lazarine AC team — a local heating, cooling and electrical company serving Fort Bend County since 2000. It reflects how we actually diagnose and quote work here, not generic national copy. It's general information, not a substitute for an on-site diagnosis of your specific system.
Ready for the next step?
Talk to the crew that will actually show up — a free written estimate, no call center.