Trusted Commercial HVAC Repair & Installation Solutions

When it comes to keeping your business comfortable, energy-efficient, and operating smoothly in Fort Smith, AR, Spiro, OK, and all the surrounding communities, Clark HVAC stands out as the top-rated, locally owned commercial HVAC contractor dedicated to serving every type of business in the region. We know firsthand how crucial reliable heating, cooling, and ventilation is for every commercial property—whether you run a restaurant on Garrison Avenue, a retail store near Central Mall, manage an office building in downtown Fort Smith, operate a school, warehouse, hospital, church, industrial facility, auto shop, apartment complex, hotel, or municipal building anywhere from Greenwood to Van Buren, Sallisaw, Poteau, or Alma. Our service area covers every corner of the River Valley, from Hackett and Arkoma to Muldrow, Lavaca, Pocola, Heavener, Stigler, and all the way to Broken Bow.

At Clark HVAC, we specialize in the installation, repair, and maintenance of all major commercial HVAC systems—including rooftop units (RTUs), split systems, ductless mini-splits, variable refrigerant flow (VRF/VRV) systems, packaged units, industrial exhaust systems, dedicated outdoor air systems (DOAS), commercial heat pumps, make-up air units, and advanced building management controls. Our highly trained, licensed commercial HVAC technicians have years of experience providing turnkey solutions for new construction, remodels, upgrades, and emergency repairs on all makes and models of commercial heating and cooling equipment.

If your business needs a complete system replacement, an urgent AC or furnace repair, a scheduled maintenance agreement to keep your equipment running efficiently, or an indoor air quality upgrade with air purification, filtration, and ventilation improvements, Clark HVAC delivers prompt, professional results. We help local businesses reduce operating costs, meet building code and OSHA compliance, and extend the life of expensive HVAC assets with tailored maintenance plans that fit your schedule and budget. Need same-day service for a down rooftop AC during a heatwave, a new furnace installed before winter hits, or a multi-zone ductless solution for an office addition? Our team offers 24/7 commercial HVAC emergency service throughout Fort Smith, Spiro, Greenwood, Van Buren, Poteau, Alma, Hackett, Heavener, Muldrow, Lavaca, Arkoma, Sallisaw, Pocola, Stigler, Broken Bow, and more.

We know the challenges that local businesses face with HVAC equipment in Arkansas and Oklahoma’s unpredictable climate—extreme heat, humidity, sudden cold snaps, pollen, and dust can all strain your building’s systems. That’s why Clark HVAC provides advanced diagnostic and repair services, energy efficiency upgrades, zoning system design, smart thermostat integration, duct cleaning and sealing, and ongoing preventive maintenance for schools, churches, retail shops, strip malls, industrial sites, offices, hotels, medical clinics, and more. Our customers include business owners on Rogers Avenue, managers at Chaffee Crossing, facility supervisors near Phoenix Avenue, and property managers in every local business park.

At Clark HVAC, our mission is to keep your business running comfortably, lower your energy bills, reduce unexpected downtime, and deliver peace of mind. We are proud to be a trusted name in commercial HVAC service for the River Valley, offering transparent pricing, fast response times, and expert advice for every job—big or small. If you’re looking for commercial AC repair, rooftop unit replacement, commercial furnace service, heat pump solutions, ductless systems, indoor air quality services, or custom HVAC solutions for your facility, get in touch today for a free, no-obligation quote. Clark HVAC is always ready to serve our neighbors in Fort Smith, Spiro, Greenwood, Van Buren, Poteau, Alma, Sallisaw, Muldrow, Hackett, Heavener, Arkoma, Lavaca, Stigler, Pocola, Broken Bow, and beyond. Call us now or fill out our online contact form—see why so many businesses trust Clark HVAC for all their commercial heating and cooling needs.