A 7-year-old AC unit is not old, it's mid-life. Most residential central AC systems are designed to last 15 to 20 years, so at 7 years you're well under halfway through the expected service life. In Los Angeles specifically, where cooling seasons are long and outdoor units take a beating from UV exposure, a 7-year-old unit that's been maintained annually should still be running at 85–95% of its original efficiency. If yours is showing problems at age 7, weak airflow, rising electric bills, strange noises, or short cycling, that almost always points to a maintenance gap rather than end-of-life. A professional tune-up at this age typically restores near-new performance for $150 to $250, which is far cheaper than replacement. Call LA Heating and Air at (818) 660-1062 to schedule a tune-up or diagnostic.
