You can cut summer cooling costs 20–30% with the right thermostat habits, regular maintenance, and a few smart home adjustments, no major renovation required. Here's what actually moves the needle for Indianapolis homeowners.

An AC that runs but doesn't cool usually has one of seven causes: a dirty filter, refrigerant leak, frozen coil, undersized system, ductwork problem, thermostat issue, or an aging unit. Some you can fix yourself in minutes. Others need a professional.

A well-maintained central air conditioner lasts 15–20 years. If yours is over 10 years old and showing trouble signs, replacement often saves more money than another repair. Watch for rising energy bills, frequent breakdowns, uneven cooling, and outdated refrigerant.