Rooftop Rainwater Harvesting


Allegiance Water Management is one of the pioneers in Rooftop Rainwater Harvesting Systems which are made suitable for residential, commercial and industrial applications. Capturing and storing rainwater for use is particularly important in dryland, hilly, urban and coastal areas. In Urban or Industrial areas, the roof top rainwater can be conserved and used for domestic purposes or recharge of groundwater. The main objective of adopting rooftop rainwater harvesting is to make water available for future use.


This approach requires connecting the outlet pipe from the rooftop to divert the water to either existing wells/ tube wells/ borewells/ recharge wells or specially designed injection wells. The urban housing complexes, institutional buildings and industries have large roof areas that can be utilized for harvesting rooftop rainwater to recharge aquifers and increase water table. 


Advantages of Allegiance Rooftop Rainwater Harvesting Systems:


  • Provides self-sufficiency to your water supply and reduces the cost of pumping groundwater
  • Reduces soil erosion and provides high quality water
  • Simple, Cost-effective and Eco-friendly
  • Rooftop rainwater harvesting systems are easy to construct, operate and maintain
  • Puts an end to flooding of roads and reduces groundwater pollution
  • In saline or coastal areas, rain water provides good quality water and when recharged to groundwater, it reduces salinity and also helps in maintaining balance between the fresh-saline water interface


There are three basic elements in every RWH system - A collection area, A catchment area and a storage facility. The requirement and catchment site vary with respect to the specific location and project, hence each needs personalized survey and analysis for installing the right rooftop rainwater harvesting system. We ensure every part of our system is equipped with premium quality material including rooftop drainage gutters, filters, pipes, tanks, etc.

Allegiance Water Management is committed towards procuring the best quality water, harvested from the system and saving each drop of rain possible!