A Fire Protection Sprinkler Fitter installs, maintains, and repairs fire sprinkler systems in residential, commercial, and industrial buildings. They ensure proper system functionality by reading blueprints, cutting and threading pipes, and connecting sprinkler heads. Their work is critical for fire safety, helping to control or extinguish fires before they spread. Sprinkler fitters must follow safety regulations, building codes, and industry standards. This trade often requires physical labor, technical skills, and occasional emergency repairs.