Costs or a Rainwater Harvesting System
Domestic Rainwater Harvesting Systems, including full installation, typically cost from £1,000 for an above ground system to £3,000 for a large domestic sub-surface system, to £20,000 for a commercial sub-surface system.
Costs do vary and are dependent on the size of the system you choose to install and whether you choose to have your tanks sub-surface or above ground.
Commercial systems can cost a lot more depending on size and requirement, but have a much quicker ‘pay back’ period.
Commercial system prices can range from as little as £3,000 for an above ground garden system to £20,000.