Family owned since 1976, Stewart Electronics Inc. has specialized in residential and commercial burglar, fire, and surveillance systems. Mission It is our family's mission to provide security and protection for your family! Company Overview Stewart Electronics Inc. is a company based out of upstate South Carolina. Stewart Electronics specializes in commercial and residential burglar, fire, and surveillance systems. Since 1976 Stewart Electronics has been a family owned business and has sold and installed a wide variety of residential and commercial electronic systems including: - Security Systems - Fire Systems - Video Surveillance Systems - Access Control Systems - Home Theater Systems