Hagar Restaurant Service was founded in 1956. With more than 200 employees in Oklahoma and Texas, Hagar proudly represents 20 ... 0 plus manufacturers and provides repair services for all gas, steam, electric, and microwave kitchen appliances, as well as refrigeration and HVAC equipment. Our service technicians are factory trained, industry-certified and have many years of experience. We offer an extensive parts inventory and a knowledgeable sales staff. read more