The Building Services and Maintenance Engineer makes buildings work. They play a key role in planning and completing a range of maintenance work encompassing industrial and commercial building services engineering systems such as ventilating, heating, water supply, waste (effluent discharge) and drainage. This includes related electrical isolation, disconnection, reconnection, and reactivation. They also complete planned preventative maintenance and undertake any required remedial repairs. In addition, they monitor and manage the operation of plants and equipment through building and energy management systems.