Mechanical engineering systems such as heating, cooling, air conditioning and ventilation create the optimum conditions for people and processes.

Lighting is often the most visually identifiable engineering system but this is only one of numerous critical systems that ensure buildings.

Designs must ensure that drinking and cold water is supplied safely, installed correctly and hot water systems, essential for hygiene.

Critical life safety systems must include early warning systems to enable speedy evacuation and will include emergency lighting,