Professional HVAC Contractors in Bolton: York Simcoe Refrigeration Ltd. For more than 35 years, York Simcoe Refrigeration has provided professional refrigeration and air conditioning services. A locally owned and family operated business, we are located in Bolton and serve the GTA and surrounding areas for commercial and industrial HVAC sales, service and parts, as well as all of Ontario for commercial soft serve ice cream machine sales, service and parts. read full review »