With lots of contractors calling Highland home, it's no wonder that the HVAC system in your property could be vastly different from others. Fortunately, being able to work on diverse HVAC setups is one of TC Heating & Cooling LLC's core strengths. In business since 2006. Precise and Dependable HVAC Expertise. Our talented technicians have the experience to understand what's going on with your particular situation and the ability to provide the best possible solution efficiently and effectively.