Business water services

For better business water, switch to the UK’s most trusted business water retailer

Discover personalised water solutions to meet your business needs

Every business is different and each one has specific water and wastewater requirements.

Our commitment to personalised service means that we’re not just another water supplier – we’re your dedicated partner in success. With Castle Water, you can expect prompt and attentive customer support that’s designed to meet your unique business needs. Say goodbye to the hassle of managing multiple providers and complicated billing systems – our streamlined approach makes it easy to consolidate all your water services into one simple, transparent bill.

We offer an individual, responsive service, whether you’re a small company just looking for a water provider or you’re a large industrial customer with several sites and complex wastewater needs.

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Small business

You need to focus on your growing business, so why waste time on your utilities? Castle Water customers enjoy fast, efficient service – plus plenty of features that save you time and money.

Large business

If you are running a large organisation that consumes more than 6,000m³ of water in a single year, we have services designed specifically for you.

Multiple premises

Do you have multiple business premises? We offer multi-site solutions that allow consolidated billing and can help meet your operational and sustainability goals.

See how much you could save on your business water bills

Our services

Your business doesn’t just need water, it needs the right water retailer with the expertise to manage your account and the influence to support you when it really counts.

Water supply

Find out how much you could save on your business water bills by switching today.

Wastewater management

Our industry experts can advise on wastewater treatment services across all business sectors.

Trade effluent

No matter the size or type of your business, we take the hassle out of managing trade effluent.

Case studies

Explore some of our customer stories and how we’ve helped support them over the last ten years.

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SUEZ Switch Over 200 Sites To Castle Water For Optimised Services And Solutions

Castle Water supports Buzzworks Holdings through 8 years of growth and expansion

Halfway And District Bowling Club Recommend Switching To Castle Water

£13,000 Leak Allowance For Verulam School

Additional services

Explore our range of additional services to help improve your water efficiency, risk assess your water strategy and find solutions should a leak occur.

We are the UK's leading independent business water supplier

There are many UK-based companies which offer water treatment services. However, many of these businesses do not have the background in water efficiency and management which naturally lends itself to providing an all-round better service.

Servicing more than 250,000 customers, we’re proud of the savings we’ve delivered with no ties to traditional network owners, which means we can fight for cost reductions while offering quality customer care.