Cascade Water Products Secures £187.3k to Advance Greywater Reuse Technology

Dundee-based Cascade Water Products Limited, a company dedicated to developing micro-greywater reuse technology, has successfully raised £187.3k in a recent funding round. The investment, finalised on May 1, 2026, values the company at an estimated £4.5m post-money. This capital injection is set to further the commercialisation of its innovative Aqua Gratis system, which aims to significantly reduce domestic and commercial water consumption.

Founded on September 16, 2015, Cascade Water Products Limited addresses the critical issue of water scarcity and the energy-intensive nature of water supply and sewage removal. The company's core offering, the Aqua Gratis system, captures and treats shower and bath water, making it suitable for non-potable uses such as toilet flushing. This technology provides a dual benefit: conserving freshwater resources and reducing the energy footprint associated with water management. The company targets a diverse market, including self-build homeowners, social housing providers, holiday resorts, and hospitality venues, highlighting the broad applicability of its solution.

Currently, Cascade Water Products operates with a small team of 2 to 3 employees, reflecting its early-stage development and lean operational model. While specific revenue and profit/loss figures were not disclosed in the latest accounts, the company's focus remains on the development and commercialisation of its greywater reuse systems. Its LinkedIn profile underscores a mission to make the world a better place by saving water in the home through cost-effective, short-retention micro domestic greywater reuse systems.

The recent funding round, with an estimated size of £187.3k, represents a targeted investment in the company's growth. The post-money valuation of £4.5m indicates investor confidence in the potential of Cascade Water Products' technology within the burgeoning water conservation market. This round marks a significant step for the company, as no previous funding rounds were publicly detailed for comparison. The filing and allotment dates for this investment were both recorded as May 1, 2026.

This funding round for Cascade Water Products Limited aligns with a broader trend of increasing investment in sustainable technologies and water management solutions across the UK. The UK greywater recycling market is experiencing rapid growth, driven by an 8.7% compound annual growth rate (CAGR), supported by evolving government policies and regulatory frameworks that encourage sustainable water management practices. The residential segment, in particular, is projected to contribute a 48.5% share of the market in 2026 and exhibit a CAGR of 7.5%, fuelled by growing consumer awareness and demand for water-efficient household solutions.

The wider UK climate tech sector, while seeing a headline decline in funding from a 2023 peak, has shown stable early-stage activity. Excluding mega-deals, base funding has held steady at approximately £800m ($1B) annually since 2021, with the median deal size growing from £766k ($968K) in 2020 to £2.3m ($3M) in 2024. This suggests that while late-stage capital has contracted, innovation at the seed and Series A level continues. The water recycle and reuse market in the UK is projected to reach £1.01bn ($1,268.6 million) by 2030, growing at a CAGR of 9.5% from 2024 to 2030. The demand for water treatment systems in the UK is also forecast to grow from £28bn ($35.2 billion) in 2026 to £57.6bn ($72.5 billion) by 2036, at a CAGR of 7.5%.

The UK water industry is facing significant challenges, including water shortages, climate change impacts, and increasing demand, with a projected supply-demand deficit by the 2030s. Water supply and treatment account for around 6% of the UK's carbon emissions, making water efficiency crucial for Net Zero ambitions. In response, there is a substantial push to modernise UK water infrastructure, with planned investment of £104bn over the 2025-2030 period, more than double the previous five-year period. This increased investment and regulatory focus on water efficiency and reuse creates a favourable environment for companies like Cascade Water Products Limited. Greywater recycling systems can reduce a commercial building's water consumption by up to 50%, and in residential settings, potable water use can be cut by 30-50%.

Cascade Water Products Limited's successful funding round underscores the ongoing importance of sustainable water solutions within the UK's cleantech and water technology landscape. As the nation grapples with environmental challenges and strives for net-zero targets, companies offering practical and cost-effective water-saving technologies are poised for continued growth and investment.