All of Stormsaver’s rainwater harvesting systems fully comply with:

BS EN 16941-1: On-site non-potable water systems. Systems for the use of rainwater 2018

Water Regulations Advisory Service (WRAS) guidelines
Water Supply (Water Fittings) Regulations 1999
Building Regulations

Plus all other relevant health and safety guidelines, including the protection of mains water drinking supplies against potential cross-contamination


Building Services Research Information Association
Stormsaver follows the best practice guidelines set out by the Building Services Research Information Association (BSRIA) and the Construction Industry Research Information Association (CIRIA).

European Standard
All Stormsaver systems not only meet the European Standard for on-site non-potable water systems, but they also exceed it in many areas.

As market leaders were committed to maintaining our position, so we ensure that we surpass building regulations wherever possible.

We've even produced our own guide to the latest British Standard to effect rainwater harvesting - BS EN 16941-1:2018. 


The installation of a Stormsaver system can help you gain points for the Building Research Establishment Environmental Assessment Method (BREEAM), win Eco Awards, Green Building Awards and many other local accreditation schemes.

Building Regulations
Part G of the regulations sets out minimum water efficiency requirements in new buildings to meet sustainability targets through saving water. Suggestions for use of rainwater harvesting systems are included within Part G.


Constructionline Gold Member CHAS Accredited UK Rainwater Harvesting Association Member Safecontractor Approved BSI Kitemark UK Business Awards Winner 2022