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Castle Water is the UK’s most trusted water supplier, with more five-star reviews than any other provider in the water market. Educational institutions choose Castle Water for reliable service, transparent billing, and expert support that simplifies water management across complex estates.
Our long-term partnerships with organisations such as Focus Academy Trust, Queen Elizabeth’s Grammar School and University College London reflect our proven ability to deliver real value – saving money, reducing waste, and improving sustainability outcomes.
It’s no wonder educational providers choose Castle Water as their business water retailer. Get a quote for 5-star rated service today.
When Verulam School experienced unexplained increases in their water bills, Castle Water was quick to act. After private contractor visits failed to resolve the issue, we arranged a site inspection, located and resolved the leak, and applied for a full leak allowance on their behalf. The result? Over £13,600 credited back to the school by their network wholesaler.
Kate Locke, Verulam School’s Business Manager, said:
“I want to thank Castle Water for all your help in guiding us through this process and securing a leak allowance for the school. As you can imagine, the £13,629.20 allowance is a huge amount for a state school, and we are extremely grateful for all your support.”
At Castle Water, we specialise in commercial water services for the education sector. From reducing costs to enhancing operational resilience, our services support the everyday needs of schools, colleges, universities, and independent institutions across the UK. Whether you’re running a single school or managing a multi-campus university estate, we provide tailored water supply and wastewater solutions that help control budgets, meet sustainability targets, and ensure day-to-day efficiency – all backed by award-winning customer service.
We’re proud to serve every part of the UK’s education sector, including IAPS members and public sector academies, supporting institutions from early years to higher education.
Managing water in an educational setting isn’t just about keeping costs down – it also involves understanding your responsibilities when it comes to contracts, compliance and consumption.
In most cases, the duty to maintain safe, clean water within the premises lies with the school, college or university itself, typically through facilities managers or estates teams. While the wholesaler (e.g. Scottish Water, Thames Water) is responsible for the infrastructure and supply quality up to the boundary, the organisation is responsible from that point onward – including internal pipework, fixtures and monitoring for leaks or unusual usage.
In England and Wales, Ofwat regulates the retail water market and ensures retailers like Castle Water follow fair practice, while The Drinking Water Inspectorate (DWI) oversees drinking water quality. In Scotland, the Water Industry Commission for Scotland (WICS) and Scottish Water hold similar responsibilities.
Castle Water’s role as your retailer is to ensure you have clear contracts, accurate billing, and the tools to monitor consumption — such as Automated Meter Reading (AMR) and usage reports. We’re also here to guide you through areas like trade effluent consent, emergency supply planning, and leak response – helping you stay compliant and avoid unnecessary costs.
By understanding the boundaries between your responsibilities and those of your wholesaler, and by working with a retailer that understands the education sector, you can take control of your water use with confidence.
From schools to multi-campus universities, managing water in education settings takes more than a basic supply. Castle Water provides tailored services that help you cut waste, improve efficiency, and stay in control of costs – with the tools and support needed to keep your site running smoothly.
Explore our latest blogs for practical advice on reducing water costs, improving efficiency, and making informed decisions about your water supply. From water-saving tips to updates on the business retail market, our content is designed to support schools, colleges, universities and independent education providers across the UK.
Castle Water is a trusted business water supplier for Independent Association of Prep Schools (IAPS) members, delivering tailored water and wastewater services across the UK. We understand the specific challenges faced by independent schools, from managing high water consumption areas such as swimming pools and sports facilities, to preserving historic buildings and estates. Our flexible, cost-effective solutions are designed to improve water efficiency, reduce costs, and support your sustainability goals.
We work with all types of educational institutions across the UK -including state schools, academies, multi-academy trusts (MATs), independent schools, colleges, and universities. We also support organisations such as IAPS members and further education providers.
Services typically include water efficiency audits, AMR, leak detection, emergency water supply, consolidated billing, trade effluent support, and tailored advice for managing complex estates. At Castle Water, these services are built around the unique needs of the education sector.
Absolutely. We provide consolidated billing, remote monitoring, and centralised support for trusts and groups operating multiple sites. This helps you manage water more efficiently across your estate and reduces the time spent on admin.
Switching to Castle Water can help reduce costs, improve operational efficiency, and support your environmental goals. Our customers also benefit from transparent billing, dedicated account support, and access to tools like Automated Meter Reading (AMR) to track and manage water use more effectively.
Schools, colleges and universities should look for a supplier with sector experience, transparent billing, and tailored support for multi-site estates. It’s also important to consider customer service reputation, access to efficiency tools like AMR, and the ability to support sustainability objectives.
Yes. We offer tailored support for independent schools, including those with complex estates or listed buildings. Our solutions take into account high-consumption areas like swimming pools and sports facilities, helping you manage usage and costs more effectively.
Reducing water waste helps institutions meet environmental targets and contribute to broader sustainability and ESG goals. With tools like AMR, regular audits and staff/pupil engagement, schools and universities can reduce consumption, cut carbon imp000act, and lead by example.
Switching is straightforward with the right support. Castle Water manages the process on your behalf, liaising with your current supplier and ensuring a seamless transition – with no interruption to supply and minimal admin for your team.
Switching can lead to significant cost savings – especially on fixed charges and through efficiency improvements. Institutions often see further savings through consolidated billing, accurate meter readings, and proactive leak detection.
We can provide emergency water supply solutions including bottled, tankered or bulk water, ensuring your site stays operational during any interruption. Our responsive customer service team is here to help when you need it most.
Our UK-based Relationship Managers work directly with schools, colleges, universities, and independent education providers to deliver cost savings, improve water efficiency, and ensure reliable service across your estate. Whether you’re managing a single site or a multi-campus operation, we’ll make the switch simple and stress-free.
