How often do HVAC systems need maintenance?

• <div><p>You should have your HVAC serviced at least <b>once per year</b>. A HVAC pro can perform maintenance twice a year if your unit is older or has many issues. You can expect to pay between <b>$100 and $550</b> for <a href="https://www.angi.com/articles/ac-service-cost.htm">HVAC maintenance</a>, which includes a thorough tune-up, routine service, proactive and reactive maintenance, and emergency maintenance services. </p></div>

What is the first thing I should check if my AC goes out?

• <div><p>If your AC suddenly stops working, the first thing to check is your thermostat settings. Ensure the thermostat is set to the appropriate temperature and mode (cooling). Sometimes, a simple adjustment or replacing the batteries in the thermostat can resolve the issue. If that’s not the issue, look to see if the <a href="https://www.angi.com/articles/how-to-tell-breaker-tripped.htm">circuit breaker tripped</a>. These basic checks can often identify simple fixes before you need to call for professional assistance.</p></div>

How do professionals clean AC coils?

• <div><p>Here’s how AC professionals will clean your AC coils:</p><ol><li><p>Unplug the AC unit or turn off the breaker to the unit in your circuit breaker box.</p></li><li><p>Remove the faceplate.</p></li><li><p>Spray a vacuum hose attachment or compressed air can to remove debris, dust, dirt, and grime.</p></li><li><p>Use a soft-bristled fin comb to remove stubborn caked-on debris.</p></li><li><p>Use the vacuum hose to suck up any extra debris.</p></li><li><p>Take a coil-safe cleaning solution and spray it onto the coils. Try to choose a no-rinse solution.</p></li><li><p>Let the solution sit for at least 15 minutes.</p></li><li><p>Gently wipe away loosened grime and debris with a microfiber cloth.</p></li><li><p>Reattach the faceplate, plug in your AC system, or turn the breaker back on.</p></li></ol><p></p></div>

How much does it cost to replace air conditioner coils?

• <div><p>Replacing an evaporator coil costs around <b>$1,350</b> on average. The coil itself, depending on the size and brand, can cost from <b>$550 to $1,100</b>. Professional labor averages about $700 total. Note that a license is required to work with refrigerants, so it’s necessary to have an AC pro complete this task.</p></div>

What happens if you run the AC with a dirty filter?

• <div><p>If you run an AC with a dirty filter, it could allow dust and dirt to build up in your ductwork, which could make you sick. At the same time, your air conditioner won’t work as efficiently as it would with a clean filter, likely resulting in less airflow, more wear and tear on your HVAC system, and higher energy bills.</p></div>

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Last update on November 23, 2025

Reviewed in June 2025
Stacy repaired my A/C unit and did a checkup on my system. He did an outstanding job and will be using him in the future.
KITE HEATING & AIR CONDITIONING
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Reviewed in June 2024
Repaired my ac and is working fine
Evans Heating And Cooling, LLC
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Reviewed in June 2022
They came quickly and fixed it quickly. The man was very nice and friendly. He knew what he was doing and got my AC up and running very quickly. The price was reasonable. Anything else goes wrong with my AC I am calling A & D Heating and Air Conditioning for sure. I could not ask for better...
3C Mechanical Technologies, Inc.
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Reviewed in January 2020
Neal was very responsive, punctual and paid attention to detail. He educated me on the differences in various qualities of radiant barrier and on the value of using high quality. He also went so far as to tell me where not to install additional insulation as it would be a waste of money. He...
Affordable Radiant Barrier
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Reviewed in March 2015
I like them and have used them in the past as well. They've done excellent work and are very detailed in their checks for the heating and A/C units. I always go with them and ask questions, which they are very good about explaining everything to me.
Reliant Air Conditioning
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Reviewed in August 2014
Matt is an excellent technician, who is punctual, polite and professional!! I am an RN, so I got a kick out of his "description of work"; they read like well-thought nurse's notes. I will always call Ed Johnson's A/C and Heating!
A Degree Above Heating and Air
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Reviewed in January 2014
We are relatively new to the area and word of mouth recommendations give us a point of reference for services when searching Angie's List. It seem that everyone has a 'guy' for something; I now have a guy I will go to for all my HVAC needs. Danny Redona was professional, had time for all my...
SO COOL
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Reviewed in January 2014
Charged me for a service that failed in 6 days and told me it would be an additonal $2500.00 for further repair. Did not do a leak check! on A/C.
Wright's Air Conditioning, Inc.
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Reviewed in January 2014
It was it the heat of the summer when the A/C went out. After it was fixed by Ken Parker Services we found out that they GOUGED us on the cost of the freon. They charged us $50 a lb and we since found out that most other services charge half that cost. We feel like the took advantage of me (a...
Ken Parker Service, Inc.
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Reviewed in March 2013
Replaced entire a/c and heating system; temperature was down below 20 degrees f and electric furnace would not work, He installed a new unit the next day and we are completely satisfied with the unit including the price. The new installed unit is a 4 ton trane with heat pump and electric...
FORBES AIR CONDITIONING & HTG
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