An overhead view of a residential air conditioning condenser unit mounted on a concrete pad next to a house with vinyl siding.

AC Maintenance in St. Augustine, FL

Air conditioners here run from April through October, so March is the time for a tune-up. Tell us about your system, and a licensed contractor who covers St. Johns County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
Aerial view of a residential air conditioning condenser unit mounted on a concrete pad next to a house with vinyl siding and a sliding glass door.

Seven months of heat, working the same parts

Your air conditioner runs April through October here, seven months of the year. Summer afternoons average 90°F, and the system has to push heat out into air that hot. The condenser coil outside is what sheds that heat, and the capacitor is what gives the compressor its starting jolt each time it cycles on. Both are working against that heat for most of the year.

A tune-up checks the capacitor's charge before it weakens to the point where the compressor struggles to start. It gets the condenser coil clean too, since a coil caked with dirt cannot shed heat the way a clean one does. Caught early, either one is a small fix. Left alone through another summer, either one can take the compressor down with it.

7 months
April through October, your air conditioner is on duty
90°F
the average summer afternoon it cools against
33 hail events
in ten years, and hail bends the fins on outdoor coils
127 wind events
in ten years, and wind drives debris into outdoor units
Isometric cutaway illustration of a house interior showing ducted air handling equipment and duct runs through rooms, connected by piping to an outdoor condenser unit on a pad outside the wall.
Your air conditioner works hardest from May through September.

NOAA nClimDiv, 1991–2020 normals

An outdoor air conditioning condenser unit mounted on a concrete pad next to a blue-sided residential house at sunset.

Book your AC tune-up in March, before homes here start needing cooling in April.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

A tune-up checks the refrigerant charge, cleans the coils, tests the capacitor and tightens the electrical connections.

Florida requires HVAC contractors to hold a state license.

The Construction Industry Licensing Board tests contractors before it licenses them, and it keeps a record of who holds that license. The license belongs to the contractor, not to any single job, so the same license that covers a new install covers a maintenance visit like this one.

A maintenance visit on your air conditioner usually means checking the system and its refrigerant charge, and anyone who opens the refrigerant side of it, in Florida or any other state, has to hold EPA Section 608 certification on top of whatever the state requires. In Florida that federal certification sits alongside the state license rather than standing in for it, so a contractor working on your AC is answering to both.

Sources: Florida Legislature · Florida Department of Business and Professional Regulation

What does AC maintenance include?
A technician checks refrigerant charge, tests electrical connections, and cleans the condenser coil so it can shed heat properly. They check the capacitor and contactor, since those wear out from the system cycling on and off. They also check the condensate drain, which can clog and back up, and change or check the filter. All of this matters more here than in a lot of places, since the system in a St. Augustine home runs for seven months straight instead of sitting idle most of the year.
How often does an air conditioner need maintenance?
Once a year is the standard, timed before the season it works hardest. Here that means scheduling it in early spring, ahead of the seven months of cooling that run April through October. A once-a-year check catches a weak capacitor or a low refrigerant charge before it turns into a breakdown on a 90 degree afternoon.
Is AC maintenance worth it?
Yes. A yearly check catches the parts that wear out gradually, like a capacitor going weak or a coil losing efficiency, before they cause the system to quit outright. Homes in St. Augustine run their AC seven months of the year with summer highs averaging 90 degrees, so a unit here has less downtime to spare than one that only runs a few months. It is also worth having a technician check the outdoor unit after a bad storm. This area has seen 127 damaging wind events and 33 hail events over the last ten years, and a unit can take damage that is not obvious until it fails later.