Overhead view of a gray outdoor AC condenser unit on a concrete pad beside a mulched garden bed and a house with vinyl siding.

AC Maintenance in Summerville, SC

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

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment

What kind of equipment?*

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

Six months of heat wears on a system that never gets to rest

Your air conditioner runs May through October here, six months straight, with summer afternoons averaging 91°F. That is a long stretch of the compressor cycling on and off, the coil pulling heat out of the air, the fan motor turning for hours at a time. A system that gets a break in spring and fall runs easier the rest of the year. Yours does not get much of one.

A tune-up before that stretch catches what six months of heavy use is starting to do. Low refrigerant, a dirty condenser coil, a capacitor going weak, all show up in a service check before they show up as a system that will not cool the house on a 91°F afternoon.

6 months: May through October, your air conditioner is on duty
91°F: the average summer afternoon it cools against
44 hail events: in ten years, and hail bends the fins on outdoor coils
227 wind events: in ten years, and wind drives debris into outdoor units

Isometric cutaway illustration of a house showing interior ductwork, an air handler, and an outdoor condenser unit connected by lines, with simple furniture in the rooms.

Your air conditioner works hardest from June through September.

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NOAA nClimDiv, 1991–2020 normals

An outdoor central air conditioning unit mounted on a concrete pad beside a blue-sided house at sunset.

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

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

What does AC maintenance include?: A technician checks refrigerant pressure, cleans the outdoor coil, and tests the capacitor and contactor that start the compressor. They also check the blower motor, inspect the ductwork for leaks near connections, and change or clean the filter. Electrical connections get tightened since a loose one can burn out a component under summer load. The condensate drain gets checked too, since a clogged one backs up and can shut the system down or cause water damage.
How often does an air conditioner need maintenance?: Once a year, in spring before the heat sets in. Here in Summerville that means getting it done before May, since the system runs from May through October and afternoons average 91°F. Waiting until it's already hot means finding problems after the system has been straining for weeks instead of before.
Is AC maintenance worth it?: Yes, because most of the failures a technician catches in a maintenance visit are cheaper to fix than the breakdown they lead to. A dirty coil or a weak capacitor makes the compressor work harder, and a compressor is the most expensive part to replace. Summerville also sees a fair number of hail and wind events each year, so a spring check is also a chance to catch anything storm damage may have loosened or knocked into the outdoor unit.

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