How much does AC repair cost?
It is the hottest week of the year, the air coming out of the vents is not cold, and the first thing you want to know is what this is going to cost. The honest answer is that it depends on what actually broke. A bad capacitor and a leaking refrigerant line both look the same from your thermostat, but one is a quick part swap and the other is a much bigger bill.
So here are real 2026 price ranges for the AC problems homeowners run into most, plus a plain section on why your AC is not cooling in the first place. These are typical residential numbers in the United States. Your local rates, the age of your system, and whether you need someone tonight or next week all change the final figure. Treat the bottom of each range as a simple, accessible job and the top as a harder one or an after-hours call.
Common AC repairs and what they cost
Why isn't my AC cooling?
Dirty filter
The cheapest and most common cause. A clogged filter chokes airflow, the house never cools, and over time it can freeze the coil. Check it first. A fresh filter sometimes fixes the whole thing for a few dollars.
Low refrigerant
If the system is low, there is a leak. You will feel weak cooling and may see ice on the lines. Topping it off is a patch; a good tech finds and fixes the leak so you are not paying for a recharge every summer.
Frozen coil
A block of ice on the indoor coil means airflow dropped or refrigerant is low. Turn the system off, let it thaw, and swap the filter. Running it frozen strains the compressor, which is the expensive part to replace.
Bad capacitor
A small cylindrical part that gives the compressor and fan the jolt to start. When it fails the unit hums but will not kick on, or the fan sits still. Cheap to replace and one of the most frequent summer breakdowns.
Tripped breaker
If the outdoor unit is completely dead, check the panel. A tripped breaker or a flipped outdoor disconnect can stop everything. Reset it once. If it trips again, leave it off and call a tech, because something is drawing too much.
Thermostat or fan motor
A thermostat set to the wrong mode, with dead batteries, or wired loose can fake a cooling failure. A failing fan or blower motor is the other one: the system runs but barely moves air, so the cool never reaches the rooms.
Repair or replace? When a fix stops making sense
A good rule of thumb: if the repair costs more than about half the price of a new system, and the unit is past 12 to 15 years old, replacement usually wins. A $300 capacitor on an 8 year old system is a no-brainer fix. A $2,500 compressor on a 16 year old unit that already needed a recharge last summer is throwing money at a system on its way out.
Refrigerant type matters too. Older units run on R-22, which has been phased out and is now expensive and hard to source, so a big repair on an R-22 system often pushes you toward a modern R-410A unit anyway. A trustworthy tech will tell you the honest trade-off instead of selling you a new system on the spot, or nursing a dying one with repeat repairs.
What moves an AC repair price up or down
The part that failed
A capacitor is cheap; a compressor or a coil is not. The same warm-air symptom can point to a $200 fix or a $2,000 one, and you do not know which until a tech actually opens it up and tests it.
Emergency vs scheduled
A planned weekday visit costs less than a 9pm call during a heat wave. After-hours, weekend, and same-day work carry a premium because someone is dropping everything to get to you fast.
Age and refrigerant
Older systems take longer and the right parts get scarce. R-22 refrigerant is phased out and pricey, so an old unit can cost more to recharge than a newer R-410A one, even for the same job.
Access and the unit itself
A rooftop unit, a tight attic air handler, or a condenser boxed in by landscaping all add time. Easy ground-level access is one job; reaching a coil through a cramped closet is another.
Stop guessing. Get a real number for your unit.
A guide gives you a ballpark. A real quote, for your home and your exact problem, is what you actually need on a hot day. HVAC businesses that use Tono answer your price question in minutes, in their own words, instead of leaving you waiting for a callback.
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