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Providing South Carolina with Star certified heating, ventilation & air conditioning services.

We Deliver the most energy efficient protection for all types of Commercial HVAC equipment In South Carolina

Highly skilled professionally certified technicians

All of our technicians are CFC certified, FDNY fire guard and torch certified, MSCA STAR certified and provide expert service for every manufacturer of HVAC equipment. Ongoing education with manufacturers partners at our in-house training facility keeps their skills sharp.

Installations

Day & Nite’s professional technicians are factory trained and specialize in chillers, boilers, cooling towers, rooftop units, fan coil units/unit heaters and split systems/air handling units. Ask us about VRF/VRV, Process Cooling and Heat Reclamation systems.

Day & Nite/All Service has unrivaled warranty repair authorization

We provide manufacturer warranty service for the world’s leading air conditioning and heating brands such as Comfort-Air, Carrier, Trane and LG. These partners often visit our facility to train our staff so we know the equipment inside and out. 

We work on all kinds of HVAC equipment

Your business is in good hands with Our Certified professionals

Day & Nite Commercial HVAC Services — Keeping South Carolina’s Businesses Cool, Comfortable, and Running Right

South Carolina doesn’t mess around when it comes to weather — sweltering summers, muggy humidity, and unpredictable seasonal swings. And when you run a business in all that, your HVAC system has to perform without fail. That’s where we come in. At Day & Nite, we provide commercial HVAC services built for the real-world challenges South Carolina businesses face — from Charleston to Columbia, Greenville to Hilton Head, and every town, city, and county in between.

Whether you manage a restaurant, healthcare facility, school, or hotel, we’re your go-to team for HVAC design, installation, emergency repair, and preventative maintenance — done right, done fast, and done with precision.

Commercial HVAC Systems That Fit Your Building, Business, and Budget

No two commercial buildings are the same — especially in South Carolina. You’ve got historic restaurants with ductwork from the 1970s, sprawling manufacturing floors with poor air circulation, and beachfront resorts constantly battling moisture and salt air. That’s why we design every HVAC system from scratch, tailored to your layout, needs, and usage. Rooftop units, VRF systems, exhaust, make-up air, dehumidification, kitchen ventilation — whatever your operation demands, we’ve built it.

Installations That Run Smooth from Day One

Timing matters. Code matters. So does airflow, placement, and getting it right the first time. Our commercial HVAC install teams understand all that. Whether you’re opening a new business in Myrtle Beach, upgrading old units in Rock Hill, or replacing rooftop systems on a Columbia office building, we handle everything — from permitting and design to final testing. We coordinate with your contractor, engineer, and facility team to make sure nothing slows you down.

Emergency HVAC Repairs — 24/7 Across the Palmetto State

When your AC crashes during lunch rush in Charleston or a heating unit gives out during a cold snap in Greenville, you don’t need promises — you need action. We run 24/7 emergency HVAC repair throughout South Carolina. Our techs show up fast, with fully stocked vans and real problem-solving skills. From blown motors and frozen coils to system controls and failed compressors — we fix what’s broken, without delays or finger-pointing.

Preventative Maintenance That Actually Prevents Downtime

Humidity, heat, salt air, and long hours — South Carolina puts your HVAC systems through the wringer. That’s why we offer preventative maintenance that goes deep, not surface-level fluff. Our technicians clean coils, test airflow, inspect belts and bearings, check refrigerant levels, calibrate thermostats — and give you a full performance profile. You’ll spot problems before they hit and avoid emergency shutdowns when you need your systems the most.

We Work with All Types of South Carolina Businesses

Whatever you do, wherever you operate — if you’ve got a building that needs heating, cooling, or ventilation, we’ve got your back. We support:

  • Full-service and fast casual restaurants

  • Hotels, beach resorts, and event venues

  • Senior care, rehab, and medical facilities

  • K-12 schools, charter networks, and universities

  • Corporate campuses and office buildings

  • Retail centers and shopping plazas

  • Breweries, distilleries, and food production plants

  • Government buildings and community spaces

We’re proud to serve Charleston, Columbia, Greenville, Spartanburg, Florence, Hilton Head, Mount Pleasant, North Charleston, and just about every community in between.

Built for South Carolina. Ready When You Are.

South Carolina weather is no joke — neither are your HVAC needs. From salty coastal air that corrodes equipment to inland humidity that taxes your entire system, we build for longevity and performance. We don’t wait for things to break. We help you stay ahead. And when the unexpected does happen? We’re already moving.

Opening a new location in Beaufort? Retrofitting an old kitchen in Aiken? Need a full-service HVAC maintenance plan for a hotel group in Columbia?

We’ll design your HVAC system with care.
We’ll install it right the first time.
We’ll repair it any hour, any day.
We’ll maintain it like your business depends on it — because it does.

That’s Day & Nite Commercial HVAC — South Carolina’s trusted name in climate control, comfort, and commercial reliability.

We Provide Services To Wide Range Of South Carolina Industries

Restaurants

Your restaurant deserves the best. At Day & Nite we offer factory & union trained technicians, a professional sales staff and over 45 years of experience in the HVAC industry.

IT/Critical Space

Custom designed HVAC solutions for your company's critical systems like server racks for Data Centers. Keep your equipment cool with the best HVAC systems and monitoring tools.

Hospitality

whether yours is a hotel for business travelers or a resort for vacationers, guests expect perfection on everything from ice machines to grab and go cases. Day & Nite HVAC reliability will keep your guests coming back.

Retail

Great shopping experiences can't be found online. Create memorable shopping experiences by making sure your location is at optimal temperature for your customers.

Healthcare

Food safety and comfortable care mean everything. Day & Nite HVAC professionals take care of your equipment with the same attentive care your staff treats patients.

Commercial Real estate

Mixed use, multi-family, office buildings, Day & Nite HVAC specialists control your expenses as comfortably as we keep your tenants

Stadiums/Arenas

Temperature control is a critical part of every fan's experience, especially for luxury boxes and clubs at outdoor stadiums. Don't let your best fans work up a sweat or freeze--let Day & Nite HVAC keep them comfortable while they enjoy the action

Education

There can be no greater responsibility than securing the safest, most hygienic environment for fontline education workers and our youth. Day & Nite's comprehensive service offerings, professional commitment to preschool, K-12, college and university well being, is how we say thanks to the teachers who positively shaped our lives and investment in the future

Solve all your HVAC problems today!

Our South Carolina Location