The idea
Delhi NCR gets ~790 mm of rain a year - most of it runs off your roof into the drain. A harvesting system captures it for reuse or recharges the groundwater below you.
What to know
Two approaches: storage (a tank for washing, gardening, even filtration to potable) and recharge (directing filtered roof water into a recharge pit or defunct borewell). Many municipal bodies in NCR mandate harvesting for larger plots and offer property-tax rebates. Even a modest 100 sqm roof can harvest more than 60,000 litres a year.
Plan it with our tools
Dealers for rainwater harvesting
AquaSanchay Systems
Sector 45, Gurugram
Rainwater HarvestingGreywater Recycling
Rainwater harvesting pits, recharge borewells and greywater reuse for villas and RWAs. · Since 2019
VarshaJal Harvesters
Sector 137, Noida
Rainwater Harvesting
Recharge pits, rooftop RWH for towers & villas, annual pre-monsoon maintenance. · Since 2015
At a glance
Typical cost₹25k–1.2 lakh (home systems)
SubsidyProperty-tax rebates in some ULBs
Typical savingTanker & borewell savings
Payback2–6 years
Indicative ranges for Delhi NCR. Get exact numbers from a site survey.