In this guide

AC Service Cost

Servicing an AC unit can become a lengthy and complicated process. Unless you have extensive knowledge about the operation and repair of an AC unit, it is probably best to hire a professional. It can take anywhere from an hour to several hours to service the unit, depending on the amount of dirt buildup, unit size, and how easily accessible it is. In addition, if the system requires any repairs, this adds to the time spent on the service call. Routine maintenance is usually done at a flat rate of between $70-$195. If the call turns into a repair situation, expect to pay $60-$75 an hour plus parts.

Another consideration is an extended maintenance plan. If your system is out of warranty, an HVAC unit, or over 10 years old, you may want to purchase a plan that includes priority service, discounted services and cleanings, refrigerant recharges, winter checks (off-season discount), inspections, and tune-ups. An extended service contract costs $175-$450 annually. The cost depends on the type and length of the contract. If you are concerned that your system may require extensive repairs, a maintenance plan is a wise choice.

Air Conditioner Maintenance Costs by Type

The AC unit type also influences how much you will pay to have it serviced. Here are costs you can expect to encounter for each type of unit:

Portable AC Maintenance Cost

A portable AC can be moved from room to room or mounted on the wall. The maintenance cost is generally $50-$150. A portable AC is similar to a window unit and has some of the same problems. A standard repair for these units is a clogged drain and costs about $100-$250 to repair.

Window AC Maintenance Cost

Window AC systems are fairly uncomplicated and only require an annual tune-up at a cost of $50-$150. Repairs are also usually inexpensive. Problems occur mostly due to creatures, such as frogs or insects, getting trapped inside and causing damage to parts. If the unit is not used during the winter, it may be a good idea to remove and store it inside the house. Other issues include a compressor malfunction at a repair cost of $50-$125 and thermostat ¹ failure for $25-$85.

Central Air Maintenance Cost

It costs about $85-$150 to service a central air system. If the system also includes a furnace (HVAC), which many do, expect to pay $210-$260 for a tune-up. Typical repairs include refrigerant leaks or requiring a charge ($200-$500), drain lines ² flushed ($75-$200), and thermostat replacement ($75-$500).

Swamp Cooler Maintenance Cost

These units are not meant for humid, hot environments, and they require a cracked window and a steady supply of water. Although swamp coolers ³ do not require a lot of maintenance, it is wise to have yearly or semi-annual maintenance done at a cost of $100-$150. Routine repairs include replacing the pads ⁴ at $125-$500, belts at $65-$85, and the pump ⁵ at $200-$275.

Ductless Mini Split Maintenance Cost

Ductless systems operate without the use of ducts, so this eliminates any ductwork problems. However, these systems have problems with a broken air handler ⁶. The good news is that because each unit is separate, the rest of the units in the house will continue to work while you have the disabled one repaired. Ductless systems are based on the number of zones because each area of the home requires a separate unit. These units sometimes leak behind the air handler. It is important to catch these leaks early on as they can cause mold and mildew in the wall. While a maintenance call costs between $290-$800, these repairs can cost $750 or more.

What Does an AC Tune-up Include?

Tasks included in an AC tune up vary according to the professional you hire and the type of system you have. Here is a standard checklist for a tune up:

• Clean air filter or replace (if the unit has one).
• Using a special cleaning agent, clean outdoor evaporator as well as coils.
• Inspect and test all electrical wiring connections, check safety and appropriate rating.
• Flush the drain lines ² and put in drain tables to combat mold and mildew.
• Test capacitors, valves and fan blade.
• Check blower ⁷ motor to ensure amps and voltage are working correctly.
• Clean and test all duct work for maximum efficiency.
• Check on refrigerant level.
• Test and calibrate the thermostat ¹.
• Lubricate and check all bearings for wear and tear.
• Measure temperatures coming from all returns.
• Measure amp and voltage draw on condenser.
• Lubricate all moving parts.
• Inspect the caulk ⁸ on a window unit.
• Inspect and repair the electrical parts.
• Check the airflow coming through evaporator coil.
• Ensure that cooling and heating system cannot run at the same time.
• Brush any bent coil fins back into shape.
• Look for wearing or loose motor belts or pulleys and repair where appropriate.
• Remove any debris in or around the compressor, condenser and fan.
• Check air flow of blades and blower wheel.

Some of the most commonly performed tasks that will influence the cost of your maintenance visit are:

Home Air Filter Replacement

Home AC filter replacement is by far the most crucial step to maintain the integrity of your system and provide a long life. There are a few options for filter replacement that you should be aware of when replacing your filter. Minimum Efficiency Reporting Value or MERV rates the amount of dust and particles allowed through the filter. Choose a filter with a MERV rating of at least 11-16 for your home. Lower MERV ratings result in lowered energy efficiency and may not provide the allergy protection necessary for all members of your household.

Pleated filters cost $4-$25 each, depending on the MERV rating. Allergen filters catch more dust, dirt, smoke, and bacteria that cause allergies. The cost is $12-$20 each. Carbon filters trap dirt, gases, and odors effectively. Expect to pay about $15-$22 for each filter. Fiberglass ⁹ filters are a more inexpensive alternative at $1-$4 each. The material in these filters catches larger air particles, but it is not good for those with allergies. HEPA or High-Efficiency Particulate Air filters are medical-grade filters. However, most AC units cannot handle the airflow necessary for this type of filter. Allergen filters are recommended for those who need better filtration. A HEPA filter requires your system to be equipped specifically for this filter.

AC Thermostat Replacement Cost

There are many types of AC thermostats ¹. Gone are the days of the dial thermostat where you moved a small wheel to choose your temperature. You can select from the following types: programmable electronic thermostats at $25-$65, touchscreen thermostats run $60-$100, smart thermostats range from $130-$300, and voice-control thermostats are $210-$250.

AC Coil Cleaning Cost

There are two types of coils on a home air conditioner. The evaporator coil is located in the unit inside the home, and its job is to cool the heat from the indoor air. The second coil is the condenser coil, which is inside the outdoor unit. The condenser coil moves energy in and out of the home. Both are essential jobs to keep your AC running smoothly and efficiently. The cost to clean an evaporator coil is $95-$350. The price of cleaning a condenser coil is $45-$100. However, these cleanings are often included in annual maintenance services. Ask your contractor for more information on including this in your service.

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Home AC Recharge Cost

Freon ¹⁰ is the coolant in your air conditioner. It is normally a lifetime supply unless there are leaks or repairs that allow the freon to leave the unit. A home AC recharge costs $125-$300, including checking the freon level in the home AC. To recharge the freon, the contractor first checks the temperature with a pressure gauge. Once it is determined you need more freon, a tank of freon is hooked up to your system’s pressure ports and fills the system with the freon needed.

It is vital that a licensed contractor does this procedure because laws are in place to protect the environment. After 2020, no freon ¹⁰ will be produced as it is harmful to the environment. Newer systems have already made the switch to a new product called Puron. Older systems before 2010 will be replenished with recycled freon and eventually phased out. Most homeowners cannot obtain freon legally because you need a professional certification to do so.

AC Duct Cleaning Cost

Duct cleaning is achieved by vacuuming out all the dust and debris from the ducts located in the house. The buildup can cause allergies as well as making your system less energy-efficient. In addition, your AC will need to work harder, and more repairs will be needed. You should have your ducts cleaned every 3-5 years or more often if someone in your home suffers from severe allergies. Duct cleaning costs range from $225-$500.

Air Conditioner Repair Cost

When you schedule your air conditioner tune-up, be prepared for additional costs, particularly if you have not had it serviced in a long time or if the system is older. Some problems that might occur include:

AC Maintenance Cost Factors

AC maintenance cost factors vary according to several circumstances, including:

• Size and efficiency. The larger your system, the more maintenance will cost. However, if your efficiency is higher, utility costs should be lower, which balances out the maintenance cost.
• How old the unit is. The older the unit, the higher the chances you will need repairs and replacement parts.
• Repairs needed. The number of repairs can increase the cost of a simple tune-up substantially. For example, in a central air unit, unclogging a condenser line costs $75-$200, while a new condenser is $400-$700. Window unit repairs may consist of a capacitor replacement of $130 or a fan motor costing $295.
• Time of year you have the work done. During the hotter months, it is more expensive to get AC maintenance done, and you may wait longer because AC companies are busy with repairs. Expect to pay $90-$140. Winter tune-ups cost $70-$90.
• Regular maintenance. If you have been doing regular, preventative maintenance, such as changing/cleaning your filter, keeping debris away from the outside unit, and vacuuming out your vents, you are less likely to need repairs.
• Accessibility. If your equipment is not easily accessible, the rate may be higher. If the technician has to cut down overgrown foliage or move things around to get to the unit, you could be charged a prep fee for the time it takes ($60-$75 an hour).

Air Conditioner Maintenance Plans

It is no secret that regular maintenance extends the life of your AC unit. With that in mind, your regular tune-up could cost less if you have an air conditioner maintenance plan. You can choose between different options, including annual tune-ups and monthly AC maintenance plans:

AC Preventative Maintenance

General maintenance keeps your system clean and functioning properly. In between service calls, change out or clean the filter monthly and keep the area around the condenser free of debris, plants, trees, and shrubs. A programmable thermostat ¹ ($25-$65) monitors the temperature and keeps the system from running unnecessarily. If you are a little mechanically inclined, you can clean the coils and fins on the outside unit as well as the vents inside the house regularly.

How to Clean an Air Conditioner

There are many parts in the AC, but the most important part is cleaning or changing the AC filter regularly. It is suggested that you do this monthly or quarterly, depending on the amount of dirt and/or allergens in the air. Other things that prevent excessive dirt and debris are to keep trees and shrubs away from the outside unit, clean the vents and intake regularly, and flush with a bleach solution. This regular maintenance avoids straining your system.

How to Save Money on Your Air Conditioning Bill

Everybody likes to save money. Saving on your electric bill can be accomplished by doing the following things:

• Open the windows on cooler days and keep drapes and blinds closed to keep the heat or cold out when appropriate.
• The closer your indoor temperature is to the outdoor temperature, the less your system will have to run.
• Auto modes ensure that the AC unit turns off when the room is cool enough. In addition, programmable thermostats ¹ keep the air from running when you are not at home and kick on about an hour before your arrival. There are also many AC systems that include an ‘eco’ mode. This setting allows your compressor to increase the fan speed while choosing a temperature that is 2 degrees higher than the thermostat is set to. The room will still feel just as cool, but your energy bill will go down.
• Keeping your fans running circulates the air. This is true even during the winter - ceiling fans have a setting for winter circulation.
• Using energy-saving light bulbs and avoiding using the oven on hot days are ways to cut back on the amount of energy used to cool your home. The heat from a clothes dryer can also make the house hotter. Make use of the great outdoors and hang your clothes outside.

Enhancement and Improvement Costs

Exposed Duct Insulation

Insulating your ducts helps your unit run more efficiently because it keeps the heat out and the cool in. Duct armor is a rubberized liner ¹¹ that goes inside of the duct via spraying. The cost is high at $2,000-$10,000.

Remodeling Terms Cheat Sheet

¹ Thermostat: A device that senses and regulates temperature by turning heating and cooling devices on and off

⁴ Pads: A cushion placed under a carpet to absorb impact, thus extending the life of the carpet

⁵ Pump: A device used to move air, liquid, or gas by mechanical means

⁷ Blower: An accessory that makes a fireplace more efficient by circulating the warm air in the fireplace to other areas of the home

⁸ Caulk: A chemical sealant used to fill in and seal gaps where two materials join, for example, the tub and tile, to create a watertight and airtight seal. The term "caulking" is also used to refer to the process of applying this type of sealant

⁹ Fiberglass: Plastic that is reinforced with glass fibers. The fibers may be mixed randomly throughout the plastic, or come in the form of a flat sheet, or be woven into a fabric

¹¹ Liner: A covering, usually made of vinyl, for the walls and floor of a swimming pool, used to keep the water in and protect the pool's surface.