Products & Services

Rainwater Harvesting

Save money and become more self-sufficient with a rainwater harvesting system for domestic or commercial applications.

Rainwater is passed through a filtration system into a holding tank where it can be stored. Water is then drawn off via a pump passing to the required outlet as and when required. The system will draw on the rainwater first, but in the event of an empty storage tank, the control unit will automatically switch to mains water supply.

Rainwater harvesting works by collected water from roofs via traditional guttering, through down pipes to an underground tank. Water is then delivered on demand by an in-tank submersible pump. It is very popular, being easy to understand and operate, relatively inexpensive to install and having low maintenance costs.

Why choose rainwater harvesting?

Rainwater harvesting in developed countries is used to supplement the mains supply, providing an independent water supply during times of regional water restrictions. The quality of captured grey water is sufficient for washing clothes, flushing lavatories and supplying outside taps. As well as financial benefits, users appreciate that rain is 'renewable' and that grey water recycling represents a major contribution to ecological sustainability. A system should be large enough to meet the usual water demand throughout the dry season. Specifically, the rainfall capturing area, such as the roof, must be large enough to maintain adequate capture levels. Likewise, the water storage tank should be large enough to contain the captured water.

There are both economic and environmental benefits of rainwater harvesting…

• Rainwater is softer, so less detergent is needed to wash clothes
• Softer water also prolongs the life of a washing machine
• Collecting rainwater reduces surface water usage by 60 per cent
• Rainwater is considered better than mains water for spraying crops
• Reduce the risk of localised flooding where water from large roof areas is not managed correctly

For information and advice relating to your project, please call us on 01785 719118 or email

For examples of our work, visit our Case Studies page.