AC Maintenance & Tune-Ups in Lexington, SC

AC maintenance in Lexington, SC is mostly about getting ahead of June. The first long run of 90-degree days is when weak capacitors give out, half-clogged drains overflow and pollen-packed coils push pressures too high. A spring tune-up finds those problems while the weather is still mild and the fix is small.

Each visit follows the same checklist on the outdoor and indoor sides. If we find a worn part, we show it to you, explain whether it can wait, and quote it separately so you decide.

What happens during a spring tune-up

The visit opens the system enough to measure and clean it, in five steps.

Step 1: Thermostat and shutdown

We confirm the thermostat calls for cooling, note how the system runs as found, then kill power at the disconnect before any panel comes off.

Step 2: Outdoor unit

• Rinse the condenser coil from the inside out to clear pollen, dust and cottonwood fluff
• Straighten badly bent fins and clear debris from the base pan
• Measure the run capacitor against its rated value
• Inspect the contactor and tighten electrical terminals
• Check fan and compressor motors for amp draw and noise

Step 3: Refrigerant check

Gauges on the service valves and temperature readings on the copper lines show whether the charge is where the manufacturer wants it. If it's low, that means a leak somewhere, and we will explain your options instead of quietly adding refrigerant.

Step 4: Indoor side

• Inspect the blower wheel, motor and evaporator coil
• Flush the condensate drain line and test the float switch that shuts the system off before water overflows
• Check the filter and replace it if you have one on hand
• Confirm the thermostat reads correctly and controls each stage

Step 5: Test run and summary

With power restored, we measure the temperature drop between return and supply air, listen for noise at startup, and give you a plain summary of anything worn.

One visit a year or two? Comparing your options

How often you schedule depends on what you have and how much risk you want to carry into summer.

Heat pumps work year-round here and wear in both seasons, so a fall visit matters more for them than for a straight AC. You can read how membership works on our HVAC maintenance plans page, and the specifics are easiest to sort out by phone.

What changes the cost of a tune-up

We quote maintenance by phone once we know the setup. What moves the figure:

• Number of systems. A two-story or lake house with one unit per floor is two tune-ups.
• Where the indoor unit sits. A hall closet is quick; a cramped attic platform in May takes longer.
• Single visit or plan. Members pay for a year of visits rather than one, and get repair discounts.
• Coil condition. A condenser that hasn't been rinsed in years takes more time to clean.
• What turns up. Parts or refrigerant are quoted separately and only done with your OK.

Problems a tune-up catches before July

Most summer failures show warning signs months earlier, when they're cheapest to fix.

• A weakening capacitor. It reads below its rating long before it fails outright. Replacing it in April avoids a no-cooling call in August.
• A slow drain. Algae builds up in the condensate line over a humid summer. Flushing it protects attic ceilings from overflow.
• A dirty condenser coil. Pollen and grass clippings make the compressor run hotter and longer, wearing it faster and raising the bill.
• Low refrigerant. A slightly low charge is often the first sign of a small leak. Catching it early gives you the choice of coil and refrigerant leak repair on your schedule.
• Pest damage. Ants and wasps in the outdoor panel, or rodents chewing low-voltage wire, get spotted before they cause a shutdown.

Where a tune-up stops

A tune-up is inspection, cleaning and adjustment. Outside it:

• Repairs and parts. Anything worn or broken is quoted before work, and you approve it first. If something has already failed, that becomes an AC repair visit.
• Leak hunting and repair. Finding and fixing a refrigerant leak is its own job.
• Duct cleaning or sealing. Ductwork is a separate service.
• Heavily fouled indoor coils. A coil matted with years of dust may need a deeper cleaning; we will tell you.

Rules, records and your warranty

Routine maintenance needs no permit. Refrigerant is different: if the charge is low and anything is added or removed, EPA Section 608 governs how it is handled, and venting is illegal. South Carolina licenses HVAC contractors through LLR, which keeps a public lookup, and we are fully licensed and insured. Manufacturer warranties vary: some say the equipment must be "properly maintained" without naming a schedule, so read yours and keep each dated tune-up summary we leave as your record. A permit only enters the picture if a tune-up ends in an equipment replacement.

When is the best time to book here?

The sweet spot in the Midlands is after the worst of the yellow pine pollen, which usually falls in March and April, and before the heat settles in. A coil cleaned in early March can be coated again within weeks. Booking in late April or May gets you a clean coil going into summer, while appointments are still easy to find.

Missed spring? An early-summer tune-up still beats waiting for the system to fail. We schedule tune-ups across Lexington, Irmo, Seven Oaks and Cayce.

Why owners keep us on the spring calendar

Bi-annual checkups come up again and again in our reviews, from households on a spring-and-fall rhythm with us. We are owner-run, NATE certified and past ten years in the trade, and a checklist visit never turns into a sales call. When the capacitor reads low, you see the meter; when the coil is fine, you hear that too. Office hours are weekdays 8 to 6, and emergency calls are answered 24/7 if something fails between visits. Plan members also move up the list when the first heat wave floods the phones.