J.T. Fire & Safety is a Somerville-based fire protection contractor that designs, installs, inspects and repairs fire sprinkler systems for commercial properties. The firm also works on fire pumps, backflow certification, fire alarm systems and commercial fire suppression, and runs an emergency sprinkler repair service. It covers much of New Jersey, including Somerset, Middlesex, Morris, Hudson, Essex, Bergen, Union and Mercer counties. It holds a New Jersey Division of Fire Safety Fire Protection Equipment Contractor permit (P01486) certified for fire sprinkler systems, and the site shows NICET certification.