Welcome to RHI Water Ltd
The Leaders in the Supply and Design of Sustainable Rainwater Solutions
About us
Rain & StormWater Management
We work in partnership with you to deliver sustainable solutions and tangible savings. We are a dynamic and innovative company specialising in rainwater harvesting, storm water management and water filtration and purification, and we have an impressive track record in working on some of the most technologically advanced engineering projects across the UK and Ireland
What we do - Sustainable Rainwater Solutions

Rainwater Harvesting
Our products such as HYDRAPRO© offer cost savings and tax relief on capital expenditure

Stormwater Management
We develop systems that capture and reuse stormwater to restore the hydrological balance

Water Filtration and Purification
Our SPECTRUM® product range eliminates iron, calcium, magnesium and other build ups from systems
Sustainable Rainwater Solutions Case Studies
Rainwater Harvesting System for Shimna Integrated College
RHI Water provided the Rainwater Harvesting system for the new Shimna Integrated College based in Newcastle Co. Down. The new £19 Million college will deliver ...
Read More Rainwater Harvesting System and Filter installed at Staycity Aparthotel Cambridge
RHI Water Ltd worked with the design consultants to supply a pressurised rainwater harvesting system to service all of the 235 toilets over 4 floors ...
Read More Rainwater Filter at Kew Gardens London
Kew Gardens is a dedicated UNESCO World Heritage Site renowned for its botanical research and education since 1759. The Palm House at Kew Gardens is ...
Read More Clients
We’ve worked with a wide range of commercial and public sector clients across the UK and Ireland






What People Are Saying
"Since we moved to our new building with the rainwater harvesting system installed, the savings our school has made on our water bill have been significant. We are delighted with not only the savings this system has brought us, but with how effortless it is for us due to the work of Johnny at RHI”

"JCP Consulting have collaborated with RHI Water for a number of years now and are our go-to for rainwater harvesting advice and expertise”.



