Founded in East Hartford, Connecticut in 1964, O&W Heat Treat, Inc. has been providing quality heat treating and brazing services to a growing, international base of 250 customers for more than 40 years. Traditionally focused on the aircraft engine and aerospace industries, we have successfully diversified our customer base over the last 15 years, and now service the tank engine, industrial laser, electronics, nuclear, medical, automotive, petroleum and computer hardware industries as well.