Our Services

Why Us

Mark Koenigseder of J&K Heating and Air Ventilating, Inc. grew up in the heating and air business, as a second generation Fort Smith HVAC specialist. Some things have changed since the Koenigseder family started working in this field. Mark founded this HVAC company to add an energy efficient, eco-friendly approach to the trade.

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Testimonials

  • Thanks Mark and Robin! The guys were very polite and did a great job!
    Yvonne Griner
    Homeowner
  • We would like to thank you, Mark, and your crew for the work you did on our home. We especially like you taking the time to actually assess what our family/home needed instead of just taking out what we had and replacing it like the other guys. The new unit is wonderful! The return air duct work you did immediately made a huge difference in the amount of airflow to the entire house. We've even received comments on how quiet the unit is. We could not be happier with the product you sold us or your professionalism through the entire process.  
    The Rose Family
    Homeowners
  • I wanted to take the opportunity to tell you how much my family and I appreciate your excellent service. Your service technician was friendly, courteous, efficient and knowledgeable. I also have to tell you that getting your bill was actually a pleasant surprise. How many times does a consumer have a chance to say that? Your business actually charged less that the estimated phone quote. Our only regret was that we had not found your company sooner before another well-known Fort Smith-area air conditioner service company had already been to our home and charged us an astronomical amount for routine maintenance and which wanted well in excess of four times what your company has charged for the coil cleaning. Clearly, we have found our new heat and air company. We certainly will be using your service again and likely very soon for our other central air unit. You can be sure that we will also highly recommend your service to everyone that we know, including on Facebook, unlike the other company, which we will warn everyone to avoid, Thank you again for a wonderful experience from start to finish. We are greatly enjoying having a functioning central air unit again in this horrible heat and are enjoying just as much not having to spend a small fortune to make that possible.
    The DuVall Family
    Homeowners
  • Our heat and air system were getting old and inefficient. Our utility bills were growing astronomically. The temperature in each room of our 2 story home varied tremendously. J & K Heating and Air recommended replacing both units as well as reworking the ductwork and adding insulation in the attic. The re-engineering of the ductwork was impressive. A few small changes have made the temperature in every room the same! The size of the units they installed seems to be a perfect match for our home. Instead of being amazed at how high our utility bills are, we're stunned at how much lower they are. Mark, Kevin, and the entire crew are very professional and worried about every detail. They are very friendly and easy to work with. They treat you better than family.
    Pam and Steve Y.
    Homeowners
  • Our friends were not wrong in recommending your company, we appreciate your help in getting us heat. Thanks again!
    Don Daniels
    Homeowner
  • Thanks for a job well done! I'll tell others about your company every opportunity I get. Good luck!
    Mrs. Dorothy Woody
    Homeowner
  • Thank you so much for the great job with our insulation! Your employees were very kind and professional and did a super job. Our garage was cleaner when they left than before they got there! Thank you so much!
    -Lee and Suzanne Easley
    Homeowners

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Our Service Areas

  • Fort Smith, AR
  • Moffett, OK
  • Arkoma, AR
  • White Bluff, AR
  • Bonanza, AR
  • Van Buren, AR
  • Barling, AR
  • Pocola, OK
  • Roland, OK
  • Cedarville, AR
  • Greenwood, AR
  • Hackett, AR