Choose a Reputable HVAC Contractor in St. Louis, MOKENAN CORPORATION HAS BEEN SERVING OUR COMMUNITY FOR OVER 10 YEARSWhen you need an HVAC contractor, you don't need an amateur. You need someone with the experience and skills needed to handle any heating or cooling problem. That's where Kenan Corporation comes in. Home and business owners in St. Louis, MO come to us for HVAC services they can rely on.