Welcome to TNT Refrigeration TNT Refrigeration LLC maintains, services, and installs commercial heating, air conditioning, and refrigeration equipment. TNT Refrigeration LLC is here to serve you - the customer. We feel the best way to do this is to provide our customers with the knowledge to make intelligent, cost effective choices. We pride ourselves in honesty, quality and workmanship. TNT Refrigeration LLC specializes in service repairs, maintenance, and the installation of heating, air conditioning and refrigeration equipment of all kinds including new construction and remodels of commercial office space, manufacturing facilitys, retail stores, package stores and convenience stores to name a few. As a mechanical contractor, we are capable of taking your project and making it a reality.