AC Tune-Up Cost

A yearly tune-up keeps an air conditioner running efficiently and catches small problems before they become breakdowns. HomeGuide puts a tune-up at $70 to $200, with a national average of $120. Angi lists the same $70 to $200 range.

Maintenance prices

Source: HomeGuide.

What a tune-up includes

HomeGuide lists about 19 checks in a typical tune-up, including:

• Cleaning or replacing the air filter.
• Testing airflow and calibrating the thermostat.
• Inspecting electrical connections and the capacitor.
• Checking refrigerant lines and inspecting the coils.
• Flushing the condensate drain line.
• Cleaning the blower.

It does not include evaporator coil cleaning, refrigerant recharge, leak detection or duct cleaning.

Extra services

Source: HomeGuide. If your system needs refrigerant every year, it has a leak; see AC freon leak repair cost.

Maintenance plans

HomeGuide says a typical plan includes:

• Two tune-ups a year (usually AC in spring, heating in fall).
• Filter cleaning or replacement.
• Priority or same-day repair service.
• Lower emergency service rates.
• 5% to 15% off repairs or parts.

At $120 to $360 a year, a plan that covers both heating and cooling visits often costs about the same as booking two tune-ups separately, with repair discounts added. For the heating side, see furnace tune-up cost.

When to schedule

Book in early spring, before the first heat wave. Contractors are busiest in summer, when emergency rates of $160 to $250 per hour apply to after-hours calls (HomeGuide).

Do tune-ups pay off?

A tune-up costs less than most single repairs. HomeGuide lists a capacitor replacement at $100 to $400 and a refrigerant leak repair at $200 to $1,500; catching a weak capacitor or a low charge early can prevent a failure on the hottest day. Compare AC repair cost.

Simple upkeep between visits

• Change or clean the filter every one to three months.
• Keep 2 feet of clearance around the outdoor unit.
• Rinse the outdoor coil gently with a garden hose in spring.

More on what a tune-up includes

A typical AC tune-up includes:

• Replacing or checking the air filter.
• Cleaning the outdoor condenser coil.
• Checking refrigerant pressures.
• Testing capacitors, contactors and motors.
• Clearing the condensate drain line.
• Checking the thermostat and electrical connections.
• Measuring temperature drop across the indoor coil.

Why it is worth it

Regular maintenance helps the system run efficiently, catches failing parts before they leave you without cooling, and is often required to keep manufacturer warranties valid. A clean coil and correct charge can also lower energy bills.

More on maintenance plans

Many HVAC companies sell annual plans that include spring and fall visits, discounts on repairs, and priority scheduling during busy seasons. Compare what is included and whether the plan renews automatically.

Beware of upsells

A tune-up is also a sales opportunity. If a technician recommends major repairs or replacement during a routine visit, ask for the readings and photos, and consider a second opinion.

What you can do yourself

1. Change the air filter regularly.
2. Keep plants and debris away from the outdoor unit.
3. Pour a little vinegar or the recommended cleaner into the condensate line if your system has an access port.

In Texas

Scheduling an AC tune-up in early spring, before the first heat wave, is common advice in Texas. Technicians are less busy, and problems can be fixed before you depend on the system every day.

What a good tune-up checklist covers

A complete AC tune-up should include more than a quick look. Ask the company for its checklist. A thorough visit usually covers:

Outdoor unit: cleaning the condenser coil, checking the fan motor and blades, testing the capacitor and contactor, tightening electrical connections and checking the refrigerant pressures and temperatures.

Indoor unit: checking or changing the air filter, inspecting the evaporator coil, checking the blower motor and wheel, clearing the condensate drain and testing the float switch.

Controls: checking the thermostat and the system's start and stop cycle.

Performance: measuring the temperature difference between return and supply air and the system's current draw.

A tune-up that does not include measurements gives little information about how the system is performing.

The best time for a tune-up

Spring is the ideal time for an AC tune-up, before the heavy cooling season. Problems found then can be fixed before the first heat wave, and HVAC companies have more availability. Many companies offer spring specials.

Signs your AC needs service before the scheduled tune-up

• It takes longer than usual to cool the house.
• Energy bills rise without a change in use.
• The system short-cycles, turning on and off frequently.
• Unusual noises or smells come from the unit.
• Water is pooling near the indoor unit.

How to spot a sales pitch

Some low-priced tune-ups are mainly used to find repairs. If a technician recommends expensive repairs or a replacement, ask for the measurements or photos that support the recommendation, and get a second opinion before agreeing to major work.

Tune-ups and warranties

Many manufacturer warranties require regular professional maintenance. If a part fails and you need to file a claim, records of yearly tune-ups can help. Keep the checklist or invoice from each visit, ideally with the date and the technician's measurements.

Do-it-yourself between tune-ups

Change the filter on schedule, rinse the outdoor coil gently with a hose from the inside out if you can reach it safely with the power off, keep plants and debris at least a couple of feet from the unit, and pour a little vinegar into the condensate drain access during the cooling season to slow algae growth.

How long a tune-up takes

A complete AC tune-up usually takes about an hour, sometimes longer for systems with dirty coils or several units. A visit that lasts only a few minutes is unlikely to include cleaning and measurements. If you have more than one system, ask whether there is a discount for servicing them in the same visit.

Sources

1. HomeGuide: AC Tune-up, Service & Maintenance Costs (Sep 14, 2023)
2. Angi: How Much Do HVAC Repairs Cost? (updated Aug 4, 2026)