Castle Water

We’re the UK’s largest independent business water retailer, providing market-leading water services to businesses of all sizes, from large multi-site customers with complex needs to SMEs, start-ups, and sole traders.

We began with a clear mission and a small, dedicated team. A decade later, we’ve grown to over 450 professionals, each committed to our core values of integrity, transparency, and fairness. Our team thrives in a culture of collaboration and trust, where a proactive approach to problem-solving drives our success.

As we continue to grow, we remain at the forefront of the UK water market, focused on providing all our customers with award-winning customer service.