About 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.
Learn More »Our Services
Air Conditioning
AC installation in Fort Smith, Arkansas is vital to comfort, safety, and quality of life.
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Heating
Heater installation, Fort Smith, Arkansas is integral to the comfort and lifestyle of your family.
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Indoor Air Quality
Indoor Air Quality in Fort Smith, Van Buren, Greenwood, Alma, AR, and Surrounding Areas
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Ductless
Ductless systems can eliminate a substantial number of particles in the air that affect the indoor air quality, environment comfort and safety for
Read More »Who We Serve
Our Happy Clients
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 E.
Thanks for a job well done! I'll tell others about your company every opportunity I get. Good luck!
Mrs. Dorothy W.
Our friends were not wrong in recommending your company, we appreciate your help in getting us heat. Thanks again!
Don D.
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…
Pam And Steve Y.
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…
The DuVall Family
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 Rose Family
Thanks Mark and Robin! The guys were very polite and did a great job!
Yvonne Griner
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