AC Services for the Charleston Lowcountry

Twice a year — spring before cooling season starts and fall before you switch to heating. Charleston’s summers are long and relentless, so going into June with a system that hasn’t been looked at since the previous fall is a good way to end up with an emergency repair on a 98-degree weekend. Our Comfort Club members get these visits automatically scheduled.

The most common culprits are low refrigerant, a dirty evaporator coil, a failing capacitor, or something restricting airflow — a clogged filter, a closed vent, or a failing blower motor. In Charleston’s humidity, a frozen evaporator coil is also something we see regularly, usually caused by low airflow or low refrigerant. Our trucks carry the most commonly needed parts, so most repairs get done on the first visit.

We don’t answer that without a load calculation. Square footage is a starting point, not an answer. Ceiling height, window area and orientation, insulation quality, and how many occupants matter too — and in Charleston specifically, the humidity load affects how equipment performs in ways that generic size charts don’t capture. We always run a Manual J calculation before recommending equipment size.

In standard inland areas like Summerville or Goose Creek, 15-18 years with good maintenance is reasonable. On barrier islands and coastal properties where salt air is a constant factor — Isle of Palms, Kiawah, Sullivan’s Island — count on 10-14 years, shorter if the system hasn’t had coated coils or regular maintenance. Annual tune-ups are the single biggest factor in longevity regardless of location.

We charge a dispatch fee, yes. It’s waived entirely when you proceed with a completed repair. If we come out, diagnose the issue, and you have us fix it, you pay for the repair — not the dispatch. You only pay the dispatch fee if you choose not to move forward with the recommended work.

For new installations, we primarily use American Standard and Rheem — both hold up well in coastal, high-humidity conditions. For mini-splits, we’re a Mitsubishi Diamond Contractor, which means we’re certified to install and service their systems at the highest level. We service all major brands including Goodman, Daikin, Carrier, Lennox, and York.

It depends on the size of your home, the efficiency level you choose, and whether ductwork needs attention — which is why an honest answer requires an in-home assessment, not a number off a webpage. As a general reference, full system replacements in the Charleston market commonly land in the several-thousand-dollar range and up.

What we can promise upfront: a $0 dispatch fee to come assess it, a written price before any work starts, and financing (including 0% for 12 months for qualified buyers) so the cost can be spread out. Call (843) 256-6454 for a real quote on your specific home.

A useful rule of thumb: if the repair costs more than about a third of a new system’s price and the unit is past roughly 10 years old, replacement is usually the better long-term value — especially given how hard Charleston’s heat and humidity push a system. A failing compressor on an aging unit, for example, rarely justifies the repair.

Below that threshold, or on a newer unit, a repair makes sense. We’ll give you both numbers and an honest recommendation rather than defaulting to the bigger sale.

No — that coupon is for the HALO H2 Zero Ultimate whole-home water filtration system, which is plumbing, not cooling. It appears in our site-wide deals because we’re a full heating, cooling, and plumbing company. If you’re here for AC, the offers that apply to you are the $0 dispatch fee, the $59.99 HVAC tune-up, and financing on new systems.

Yes. We cover Johns Island and Seabrook Island as part of our Charleston-area service, and coastal salt air is a real factor there — it corrodes outdoor condenser components faster, which makes regular maintenance especially worthwhile on the islands.