Tests and/or troubleshoots a variety of items dependent on specific trade expertise (e.g., thermocouples, motors, boiler controls, fire alarms, plumbing valves, fixtures, water lines, alarms, locks, new and renovated construction) for the purpose of assessing item functioning and recommending repair or replacement. Understands and follows safe work practices for all trades, including but not limited to: Lockout Tag-out, Confined Space Entry, use of hazardous chemicals, use of Personal Protective Equipment, Ladder Safety, and working from Elevated Surfaces.