CLARK HVAC

AC maintenance for Fort Smith AR, Poteau OK, Pocola OK & Spiro OK. Tune-ups improve efficiency, airflow, and reliability, helping prevent breakdowns and extending equipment life. Schedule your seasonal inspection and performance check.

We diagnose and repair AC systems that are not cooling properly, blowing warm air, leaking, freezing up, making unusual noises, or not turning on. Clark HVAC services all major brands and works to restore comfort as quickly as possible.

Heating installation in Fort Smith AR and nearby Poteau, Pocola & Spiro. We install furnaces and heat pumps with proper sizing, safe connections, and clean startup testing for reliable winter comfort. Contact Clark HVAC to schedule.

Heater maintenance for Fort Smith AR, Poteau OK, Pocola OK & Spiro OK. Seasonal checks improve safety and performance and help prevent no-heat surprises. Book an inspection, cleaning, and system test with Clark HVAC.

Heating repair in Fort Smith AR, Poteau OK, Pocola OK & Spiro OK. If your system won’t start, won’t heat, or keeps shutting off, we’ll diagnose the cause and restore safe, reliable warmth. Call Clark HVAC.

HVAC maintenance in Fort Smith AR, Poteau, Pocola & Spiro. Full-system seasonal service for heating and cooling: inspection, airflow checks, electrical review, and performance testing to keep your system efficient and dependable.

AC installation for Fort Smith AR, Poteau OK, Pocola OK & Spiro OK. We replace old units or install new systems with proper setup, connections, and final testing for strong, consistent cooling. Contact Clark HVAC.

HVAC repair in Fort Smith AR, Poteau OK, Pocola OK & Spiro OK. We troubleshoot no-heat/no-cool, short cycling, odd noises, and airflow problems and fix the root cause for lasting comfort. Call Clark HVAC.

Ductless mini-split service in Fort Smith AR, Poteau OK, Pocola OK & Spiro OK. We install, maintain, and repair ductless heating and AC for additions, garages, and hot/cold spots—efficient comfort without ducts.

Duct and vent installation in Fort Smith AR, Poteau OK, Pocola OK & Spiro OK. We install supply/return ductwork, vents, and plenums with proper sealing and airflow for better comfort and system performance.

HVAC system repair in Fort Smith AR and nearby Poteau, Pocola & Spiro. We diagnose and repair heating and cooling failures, airflow problems, electrical issues, and control faults to restore dependable comfort.

Thermostat install in Fort Smith AR, Poteau OK, Pocola OK & Spiro OK. Upgrade or replace your thermostat for better comfort control. We verify wiring, setup, and system operation so everything runs correctly.

Thermostat installation in Fort Smith AR, Poteau OK, Pocola OK & Spiro OK. We install and configure standard or smart thermostats, confirm compatibility, and test heating/cooling response for accurate control.

Thermostat repair in Fort Smith AR, Poteau OK, Pocola OK & Spiro OK. If readings are wrong or your system won’t respond, we troubleshoot wiring, settings, and controls to get your HVAC running properly again.