As obvious as it may sound, overhead water tanks do weaken the overall structure of the building over a period of time because of the water leakage from the tanks through slabs, beams, columns and brickworks which seep into the building. Hence it is key to prevent such leakage. At waterproofing concepts a comprehensive analysis is vital to understand the depth of the problem and we suggest and implement solutions such as resurfacing, concreting with chemicals and coating.