Rated 5.0 on Google
Real reviews from your neighbors in Heavener and across the River Valley — posted straight to Google, not written by us.
Heavener · LeFlore County · 74937
AC Repair & Heating Service in Heavener, OK
AC quit in the summer heat or furnace out on a cold night in the foothills? Clark HVAC runs same-day AC repair, heating repair, installation, and maintenance calls across Heavener and southern LeFlore County — licensed in Oklahoma and Arkansas, residential and commercial, with honest diagnostics and upfront pricing.
- 24/7 Emergency Service
- Same-Day When Possible
- Licensed & Insured
- EPA Certified
- Upfront Pricing
- Family-Owned, Local
Heating & Cooling
HVAC Services We Run in Heavener
Heating and cooling for Heavener homes, rural properties, shops, barndominiums, rentals, churches, and small businesses. Most brands, whoever installed it.
AC Repair
AC blowing warm, freezing up, or dead on the hottest day of the year. Same-day service available.
AC Repair details →Furnace & Heating Repair
No heat, blowing cold, short cycling, or won’t light. Gas, electric, and heat pump heating.
Furnace & Heating Repair details →24/7 Emergency Service
Nights, weekends, and holidays. A real person answers, and we tell you the overtime rate before we roll.
24/7 Emergency Service details →HVAC Installation & Replacement
Properly sized, code-compliant systems for homes, shops, and small businesses. Financing available with approved credit through Synchrony.
HVAC Installation & Replacement details →Heat Pump Repair & Install
Year-round heating and cooling from one system — a good fit for a lot of homes in Heavener.
Heat Pump Repair & Install details →Ductless Mini-Splits
Shops, garages, add-ons, barndominiums, and rooms the ductwork never reached.
Ductless Mini-Splits details →HVAC Maintenance
Spring and fall tune-ups that catch small problems before they become a no-cool call in July.
HVAC Maintenance details →Indoor Air Quality
Filtration, purification, and humidity control for dusty, allergy-prone homes.
Indoor Air Quality details →Recent Clark HVAC work



Local Service
Serving All of Heavener
Heavener sits at the edge of the Ouachitas along Highway 59 and US-270, and our crews run that corridor every day between Poteau, Howe, and the Arkansas line. We cover the neighborhoods in town, the homes out toward Heavener Runestone Park, and the rural places up the hollows and along the county roads.
LeFlore County homes and businesses take a beating — long humid summers, ice storms, and a lot of older equipment with long duct runs. We work on all of it — central systems, heat pumps, mini-splits, package units, and commercial equipment — with fully stocked service trucks and technicians licensed in both states.
Where we work in and around Heavener
- In-town neighborhoods near Heavener Public Schools, downtown, and E Avenue I
- Homes along Highway 59 and US-270
- Properties out toward Heavener Runestone Park and Poteau Mountain
- Farms, shops, and barndominiums on county roads toward the Ouachita National Forest
- Quick runs to Poteau, Howe, Wister, and Hodgen
Heavener is on our regular Poteau-side route — same-day service on most calls.
Sound Familiar?
Common HVAC Calls We Run in Heavener
If you recognize yours, give us a call — a lot of these are a same-day fix.
- AC blowing warm air or not turning on at all
- Outdoor unit freezing up or running nonstop
- Furnace won’t light, short cycles, or only runs sometimes
- Heat pump stuck in defrost or blowing cool air in heating mode
- High electric bills from tired equipment or leaky ducts
- Hot and cold spots between rooms
- Strange noises, burning smells, or tripped breakers
- Thermostat that won’t hold a setting
- Mobile homes and rural systems with airflow or duct problems
- Systems past their useful life that keep needing repairs
Why Clark HVAC
Local Techs Who Answer the Phone
Licensed, insured, EPA certified
Licensed and insured in both Oklahoma and Arkansas, with EPA-certified technicians on every call.
24/7 emergency service
AC out on a 100° afternoon or no heat on a January night — we answer. After-hours calls are billed at our overtime rate, and we tell you that before we roll.
Upfront pricing
You hear the price before the wrench comes out. No surprise line items when the invoice shows up.
Local crews, not a call center
Family-owned and based in Spiro, OK, with crews running Fort Smith, Poteau, and the whole River Valley every day. When you call, you reach Clark HVAC — not a dispatcher two states away.
No high-pressure sales
If the fix is a capacitor, we install a capacitor. We are not working off a commission script, and we will tell you when a repair is not worth it.
Second opinions welcome
Been told you need a whole new system? We are glad to take a look and tell you what we actually find.
Service Area
Also Serving Nearby Towns
Based in Spiro, OK and running calls on both sides of the state line.
- Fort Smith, AR
- Poteau, OK
- Pocola, OK
- Spiro, OK
- Greenwood, AR
- Van Buren, AR
- Sallisaw, OK
- Alma, AR
- Barling, AR
- Lavaca, AR
- Hackett, AR
- Charleston, AR
- Muldrow, OK
- Roland, OK
- Howe, OK
- Stigler, OK
- Cameron, OK
- Shady Point, OK
- Arkoma, OK
Our Services
Questions
Heavener HVAC FAQs
Do you offer same-day AC or heating repair in Heavener?
Yes. We run same-day service in Heavener whenever the schedule allows, and no-cool and no-heat calls move to the front of the line in extreme weather. Call us and we’ll tell you honestly where you land in the schedule.
Do you handle emergency HVAC calls in Heavener at night or on weekends?
We do — true 24/7, including holidays. Office hours are Monday through Friday, 7:30am to 4:30pm, and calls outside those hours are billed at our overtime rate, which we tell you before we head your way. See our emergency HVAC service page.
Where is Clark HVAC based, and do you really cover Heavener?
We’re a family-owned company headquartered in Spiro, OK, licensed in both Oklahoma and Arkansas. Heavener is part of our regular LeFlore County route along Highway 59, not a special trip.
Do you work on mobile homes and rural properties?
Yes. A big share of our LeFlore County work is rural homes, mobile homes, shops, and barndominiums. Package units, heat pumps, mini-splits, and long duct runs are all familiar territory.
Do you install new systems and mini-splits in Heavener?
Yes. We install properly sized central systems, heat pumps, and ductless mini-splits for homes, shops, garages, and barndominiums around Heavener. Financing is available with approved credit through Synchrony. See HVAC installation and ductless mini-splits.
Do you give a price before you start the work?
Always. We diagnose the problem, walk you through the options, and you approve the price before any repair starts. If it can wait, we’ll tell you that too.
Need Heating or AC Help in Heavener?
Call and talk to a real local tech. We’ll tell you what’s wrong and what it takes to fix it — no pressure, no guessing.
Financing available with approved credit through Synchrony.
Clark HVAC · 21196 Jake Smith Rd, Spiro, OK 74959 · 918-839-3734