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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.

Small premises

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.
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Large premises

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.
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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?

Save up to 80% on your fixed water charges

Our services

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Water supply

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

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

Whatever the size of your business, we take the hassle out of trade effluent.

Case studies

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

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

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Halfway And District Bowling Club Recommend Switching To Castle Water

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£13,000 Leak Allowance For Verulam School

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.


Save water and money

Award-winning service

customer service

Industry experts

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Improve efficiency and avoid potential leaks

What our customers say about us