Energy efficiency can be achieved for new or old building. If it is a new building, the owner may strive for recognition available out there such as Green Building Index (GBI), LEED or Greenmark. If it is an old building, the aim is to reduce consumption while improving or maintaining production, safety, health and comfort of its occupants.A medical health check for humans is what energy efficiency is for buildings. Overtime, components and systems go through wear and tear, the buildings functionality changes, machines are added and sometime more people are working together in a smaller area. By conducting a proper diagnosis, we are able to find the faults and rectify them the best way possible.