Residential & Commercial — it's on the van
Commercial HVAC for Charleston businesses
AC repair, installation, and service, commercial heating, geothermal, server room cooling, and Daikin VRV multi-zone systems — with maintenance planned around your business hours and call support until 9 PM when something quits.
Built on commercial roots
Comfort is our business too
Before founding Holy City Heating & Air, Tom Harvey earned a commercial HVAC contractor’s license and built his first company on commercial work — so the commercial side of our lineup isn’t an afterthought bolted onto a residential shop. Our vans say “Residential & Commercial” because we do both, every week, across the Lowcountry.
Charleston is a hard market for commercial comfort: storefront doors that open all day into July humidity, historic downtown buildings that were never designed for ductwork, and restaurants where the kitchen fights the dining room. That’s exactly the kind of problem multi-zone systems like Daikin VRV — and honest load math — were made for.
Commercial AC repair, installation & service
Diagnosis, repair, and full replacement for the cooling that keeps your customers comfortable and your staff productive — sized and commissioned for commercial loads, not guesswork.
Commercial heating
Heating service and installation for Lowcountry businesses — reliable heat for the cold snaps without oversizing you into wasted energy the rest of the year.
Daikin VRV multi-zone systems
As a Daikin Comfort Pro we install VRV — Daikin's variable-refrigerant system for buildings that need independent comfort zones: offices, mixed-use, and multi-suite properties.
Packaged systems
Daikin packaged units put the whole system in one cabinet — a practical fit for commercial buildings where indoor mechanical space is tight.
Server room cooling
Dedicated, always-on cooling for server and equipment rooms, where a failed unit costs a lot more than the repair.
Commercial geothermal
Geothermal heating and cooling for commercial properties ready to invest in long-run efficiency.
Keep it running
Planned maintenance, on your hours
Commercial equipment fails on the days it works hardest — which are also the days you’re busiest. Scheduled maintenance visits, planned around your business hours, catch refrigerant, airflow, and electrical problems while they’re still cheap and quiet. And if something does quit mid-service on a Saturday, our phones are answered until 9 PM.
- Daikin VRV — the multi-zone commercial line we install as a Comfort Pro.
- Daikin packaged units — one-cabinet systems for space-tight commercial buildings.
- HVAC maintenance — what a planned visit covers.
- Indoor air quality — filtration and humidity control your customers can feel.
- Commercial financing through Trio Capital is available for larger projects.
Licensed & insured — SC License #M113404.
Commercial FAQs
Straight answers for business owners
Does Holy City Heating & Air do commercial HVAC work?
Yes — we serve both residential and commercial customers across the Charleston Lowcountry. Commercial AC repair, installation, and service, commercial heating, geothermal, server room cooling, and Daikin VRV multi-zone systems are all in our lineup.
What kinds of businesses do you work with?
Charleston-area storefronts, restaurants, offices, and multi-suite commercial buildings — including the older downtown commercial stock where humidity control and equipment placement take real local experience.
Can you maintain our equipment on a schedule?
Yes. We plan maintenance around your business hours so tune-ups and filter service don't interrupt your customers, and so small problems get caught before they become a closed-for-the-day breakdown.
What if our cooling fails during business hours?
Call (843) 790-6504 — we provide call support until 9 PM, so a real person answers and gets a technician moving. For restaurants and retail in a Charleston summer, we treat lost cooling with the urgency it deserves.
Do you install Daikin VRV?
Yes. VRV is Daikin's variable-refrigerant multi-zone platform, and as a Daikin Comfort Pro dealer our installation team is factory-trained on it. It's a strong fit for buildings where different spaces need different comfort at the same time.
Let's talk about your building.
Tell us what your space is fighting — humidity, hot zones, tired equipment — and we'll bring options, not pressure.