Commercial HVAC in Fort Smith & Poteau
Commercial repair, installation, and maintenance for restaurants, retail, offices, schools, and light industrial buildings. Rooftop units, split systems, walk-in coolers, cooling towers — we work on it all. 24/7 emergency dispatch for commercial customers.
24/7 Commercial
Downtime Costs You Money. We Get That.
When a commercial HVAC system fails, you don't have time for a national chain to "get a tech out next Tuesday." You need someone local who picks up the phone, dispatches fast, and fixes the problem so you can get back to running your business.
24/7 Emergency Dispatch
Restaurants, retail, walk-in coolers, server rooms — commercial breakdowns can't wait. We answer the phone day or night.
All Commercial Equipment
Rooftop units, split systems, mini-splits, cooling towers, walk-in coolers, makeup air units, exhaust systems — we work on it all.
Maintenance Contracts
Scheduled tune-ups, priority dispatch, no-surprise billing. Set it up once and stop being surprised by breakdowns.
Local & Accountable
Based in Spiro, OK. We service Fort Smith, Poteau, and surrounding areas year after year — and we're still here next year.
Rooftop Units, Coolers, Towers & More
From a single rooftop unit at a small restaurant to multi-unit school and industrial campuses with cooling towers — we work on every type of commercial HVAC equipment.
Rooftop Package Units
RTU repair, replacement, and full installs. Crane lifts, curb adapters, gas and electrical hookups, startup testing.
Repair · Install · ReplaceSplit Systems
Indoor air handler + outdoor condenser setups for offices, retail, and small commercial buildings.
Repair · Install · ReplaceWalk-In Coolers & Freezers
Restaurant, convenience store, butcher, and florist refrigeration. Inventory-loss emergencies prioritized.
Repair · MaintenanceCooling Towers
Industrial cooling tower service, cleaning, water treatment, and component replacement.
Service · MaintenanceMini-Split Systems
Multi-zone commercial ductless systems for offices, server rooms, and special-use areas.
Install · RepairCommercial Ductwork
New construction trunk lines, branch runs, supply & return registers, exhaust runs, makeup air.
Design · Install · RepairMaintenance Contracts
Scheduled preventative maintenance — spring AC tune-up + fall heating check + priority dispatch.
Recurring · Custom24/7 Emergency Service
Critical commercial failures dispatched as fast as possible — day, night, weekends, holidays.
24/7 · Year-RoundFrom Garrison Avenue Restaurants to Greenwood Schools.
We service real commercial customers across Fort Smith, Poteau, Pocola, and the surrounding area — restaurants on Garrison Avenue and Rogers Avenue, retail stores, offices, schools, churches, warehouses, daycares, medical and dental offices, convenience stores, and light industrial buildings. From a small business with one rooftop unit to multi-unit campuses with cooling towers and industrial refrigeration, we handle it.
Because we're based right here in Spiro, OK — minutes from Fort Smith and Poteau — our commercial dispatch is fast. We can invoice property management companies, coordinate scheduling across multiple locations, and track equipment by site for portfolio customers. We're still going to be here next year, and the year after that.
Commercial Problems We Solve Every Week
Commercial HVAC failures look different than residential breakdowns. Different equipment, different stakes, different urgency. Here's what we see most often across Fort Smith and Poteau businesses.
Rooftop Unit Failures
Bad compressors, blown contactors, capacitor failures, frozen evaporator coils. RTUs sit in the worst conditions — sun, wind, dust, rain — and break down accordingly.
Walk-In Cooler Down
Restaurants and convenience stores lose thousands when refrigeration fails. We prioritize cooler emergencies because every hour costs you inventory.
Hot & Cold Spots
Customers and staff complaining about uneven temps? Usually a ductwork problem, balancing issue, or an undersized RTU. We diagnose the real cause, not just slap in a new thermostat.
Skyrocketing Energy Bills
Commercial electric bills climbing every quarter? Inefficient equipment, dirty coils, leaking ductwork, oversized systems short-cycling. We find the cause and fix the right thing.
Leaks & Drainage Issues
Ceiling leaks under rooftop units, condensate flooding, refrigerant leaks. Left alone, these wreck building materials and shut down the whole system.
Air Quality Complaints
Musty smells, dust circulating, sick-building complaints, code inspections coming up. We address makeup air, exhaust, ventilation, and filtration to keep your space compliant.
Got a commercial HVAC problem we didn't list? Call (918) 839-3734 — we'll diagnose it and tell you straight what it needs.
Rooftop Units, Schools & Big Buildings.
Most local HVAC companies stop at a 5-ton residential split system. We don't. We handle full commercial rooftop unit (RTU) installations including crane lifts, curb adapters, gas and electrical hookups, and complete system startup. We've done multi-unit school district installs, restaurant change-outs on Garrison Avenue, retail rooftop replacements, and church HVAC upgrades.
What "big commercial" means for us: single-unit RTU swaps, multi-unit campus installs, cooling tower service, makeup air units, large-tonnage split systems, walk-in refrigeration, and full-building HVAC upgrades. We coordinate with general contractors, property managers, and facilities directors to get the work done on schedule and on budget.
Need a crane lift, a tear-off, or a multi-unit replacement? We have the equipment and the experience. Call us before the heat of summer or the first cold front — those are exactly the worst times to discover your commercial system is about to die.
Stop Being Surprised by Breakdowns
Commercial HVAC contracts catch small problems before they become $5,000 emergency calls — and keep your business running through summer rushes and winter cold snaps.
Scheduled Visits
Spring AC tune-up + fall heating check at minimum. Custom schedules for restaurants, refrigeration-heavy customers, or 24/7 operations.
Full Inspections
Coil cleaning, refrigerant pressures, electrical checks, belt and bearing inspections, drainage testing, filter changes, control board diagnostics.
Priority Dispatch
Maintenance customers jump the queue. When you call, you get a tech faster than walk-in service customers.
Equipment Tracking
We log every unit by location with model, serial, install date, and service history. Critical for multi-site portfolios.
Discounted Repairs
Maintenance customers get reduced labor rates and parts discounts on any work outside the contract scope.
Property Management Friendly
Direct invoicing to property managers, consolidated billing across locations, electronic service tickets — whatever your AP team needs.
Ready to talk maintenance contracts? Call (918) 839-3734 for a custom quote.
Why Most "HVAC Companies" Won't Touch Commercial Work
A lot of HVAC contractors in the Fort Smith and Poteau area stick strictly to residential — single family homes, mobile homes, simple split systems. The minute a business owner calls about a rooftop unit, a walk-in cooler, or a multi-unit building, they get told "we don't do that" or "we can refer you to someone in Tulsa."
That's a problem. Commercial customers end up calling national chains that send a tech from two hours away, charge a premium, and aren't responsive when something breaks at 6pm on a Friday. Or they end up calling whichever residential guy is willing to try — and getting an install or repair done by someone learning on their dime.
That's where we fit. We're a local, family-owned company that handles real commercial work — rooftop units, cooling towers, walk-in refrigeration, ductwork design, multi-unit campuses, schools, churches, restaurants. We have the equipment (cranes, lifts, vacuum pumps, recovery machines), the certifications (EPA, licensed, insured), and the experience to do the job right the first time.
If you've been struggling to find a commercial HVAC company that actually answers the phone and shows up — that's us. Call (918) 839-3734 and we'll get you set up.
From First Call to Service Complete
Simple process. No runaround. Three steps to get your commercial HVAC back online — or set up on a maintenance plan that prevents breakdowns.
Call or Email
Reach us at (918) 839-3734 or service@clarkhvac.co. A real local dispatcher answers — no national call center routing.
On-Site Evaluation
Our tech arrives, evaluates the equipment, and gives you an honest assessment with upfront pricing — no padded estimates.
Job Done Right
You approve the work. We fix the problem, install the equipment, or set up your maintenance contract — and clean up before we leave.
What Our Customers Say
5.0 stars across 62+ verified Google reviews. Real customers — homeowners, business owners, property managers — across the Fort Smith and Poteau area.
"Took care of our HVAC unit quickly and they are very professional. We will be using Clark for our HVAC needs."
"Absolutely top notch — so refreshing to get someone to answer and call you back. Not to mention an appointment the very next day."
"Called when I got home after work to find that my air conditioner wasn't working and spoke to a helpful human."
Commercial HVAC FAQ
Common questions from business owners, property managers, and facilities directors. Don't see your question? Call (918) 839-3734 and we'll answer it on the spot.
Do you offer 24/7 emergency commercial HVAC service?
What types of commercial HVAC do you service?
Do you offer commercial maintenance contracts?
What types of businesses do you service?
Do you do rooftop unit installations and replacements?
Do you work with property managers and building owners?
What HVAC brands do you service commercially?
What areas do you service commercially?
Do you service walk-in coolers and refrigeration?
How quickly can you respond to commercial emergencies?
Do you handle commercial ductwork?
Can you handle multi-location or multi-unit commercial accounts?
Where We Service Commercial Customers
We service commercial HVAC customers throughout the Arkansas River Valley and Eastern Oklahoma. If your business isn't in a town listed here, call (918) 839-3734 — we likely cover it.
Need Commercial HVAC Help?
Whether your rooftop unit died, your walk-in cooler is warming up, or you need a maintenance contract — we'll get you scheduled fast. Call or email and a real local dispatcher will get you taken care of.
(918) 839-3734Based in Spiro — Commercial Service Across the River Valley
21196 Jake Smith Rd, Spiro, OK 74959 — commercial service across Fort Smith, Poteau, Pocola, and the entire Arkansas River Valley.
21196 Jake Smith Rd
Spiro, OK 74959
24/7 Emergency Service Available
Last updated: May 2026