The vastu poojas or worship is done to prevent any obstacles that the construction might face. Vastu poojas are required for house constructions, well digging and building, construction of religious structures and construction of business, medical or educational institutes. Pleasing all the vaastu gods spread across the Earth will bring positive results, during and after construction.
Vastu pooja must be done at the beginning and at the end of a building construction. If negative results are felt in completed buildings, vastu pooja must be done as a remedial measure. A displeased vastu purush will constantly create troubles. The only solution is to satisfy him through a vastu pooja. Seek the help of a vastu expert for this.