rainwater harvesting system

What We Do

We are the UK Market Leaders for Rainwater Harvesting and Greywater Recycling.

Our 2000 systems across the UK are helping to save nearly 7 billion litres of water each year through providing sustainable water supply for toilet flushing, vehicle washing, irrigation and many other industrial processes.

Each year our systems are specified by the top 30 mechanical & electrical contractors and construction companies in the UK. Our maintenance team work with many facilities management companies to help them maximise water and carbon savings for the long term.

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 Rainwater harvesting help

Our Promise

We pledge to provide reliable, robust, bespoke solutions to all commercial, industrial, educational buildings and homes where rainwater harvesting contributes to the sustainability and financial viability of the occupants.

We promise to provide a secure, interesting and exciting business which creates jobs for people locally and nationally. We want to have fun and feel that at the end of each day we have contributed something positive to our client’s projects as well as the global initiative towards sustainable water.

Our team promise that we will be honest, we will be reliable. If we don’t know an answer, we will find it out. If we make a mistake we will ensure it doesn’t happen again. If we don’t have a bespoke solution, we will create one.

 rainwater harvesting founders

Our Journey

Our journey started in 2003 when Michael Farnsworth joined forces with his business partner Lisa Farnsworth to create Stormsaver.

Having developed a natural passion for water conservation during his time at Nottingham Trent University, Michael pioneered some of the first commercial rainwater harvesting systems in the UK.

We’ve come a long way since 2003! From 2 people working out of a garden shed, to a highly sustainably office and production facility in the heart of the Nottinghamshire countryside. Lisa and Michael are joined by 36 talented team members who are the beating heart of Stormsaver and the reason why so many of our customers return to us each year.

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 Our Team

As the UK’s leading rainwater harvesting specialists, we have attracted and developed a team of industry professionals who are all passionate about water sustainability

 Standards & Legislation

Rainwater Harvesting in the UK is governed by several regulations and minimum standards, including WRAS requirements and BREEAM ratings to ensure optimal water savings can be achieved. All Stormsaver Rainwater Harvesting Systems adheres to British Standards and Legislation. Find out more about Rainwater Harvesting Standards and Legislation here.


 Frequently Asked Questions

Here you'll find answers to most of the common questions people have about our rainwater harvesting systems.


Read our testimonials to give you peace of mind, that by choosing Stormsaver you are getting value for money, a reliable product and a trustworthy team to support you.


Here's our latest news releases.

 Stormsaver Blog

Want to learn more about water conservation? In our blog we cover all water reuse topics, rainwater harvesting, attenuation, commercial greywater. 

Constructionline Gold Member CHAS Accredited UK Rainwater Harvesting Association Member Safecontractor Approved Waterwise Affiliate UK Business Awards Winner 2022