HIRE AN EXPERIENCED HVAC CONTRACTOR BASED IN MCKINNEY, TX When your heater stops working or you want to replace your air conditioner, turn to Air Tech Solutions for help. We're a top HVAC contractor serving clients in McKinney, TX and the surrounding areas, including Allen, Plano, Richardson, Fairview and Frisco. Whether you need air conditioning installation services or heating maintenance services, you can trust us to do the job right. We also sell high-end HVAC units from Carrier.