Wastewater treatment and management

As an independent water company, we provide our customers advice and assistance on professional wastewater treatment and management solutions, making it easy for businesses to manage the water they use.

Wastewater treatment needs to be handled the right way in order to follow UK environmental regulations, otherwise businesses can run the risk of running into extra costs due to the way they dispose of their wastewater.

Adapting to your industry

Castle Water stands out among other service providers due to our client-focused approach. No two companies or industries are the same: We aim to work collaboratively with you to identify your needs so we can advise wastewater treatment solutions that are tailored to your business specifically.

Below are the most common industries that we and our partners have experience with in advising & delivering wastewater treatment solutions:

A range of effective wastewater treatments

Similarly, to how different industries and businesses will require a different approach, it is important that your water management company is able to assist you in finding the wastewater treatment to match your requirements.

Below are the wastewater treatment solutions that we Castle Water can advise on:

  • Anaerobic digesters
  • Chemical Treatment
  • Consent breach mitigation
  • Environmental auditing
  • Filtration
  • O.G. control
  • Greywater recycling
  • Odour control
  • On-site treatment solutions
  • Oxygenation
  • Nitrogen & Phosporus
  • Process optimisation
  • Sampling
  • Training
  • Waste additives
  • Waste heat recovery
  • Waste tankering

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How can you help me reduce my water consumption?

Your water retailer should be actively helping your business to reduce its water consumption and cut its water costs.
A water efficiency programme can pinpoint areas where consumption can be reduced.
Rainwater harvesting can provide another source of water for selected use around your business.
Water efficient toilets and taps can be installed to save money over time.
Automatic meter reading can give a real-time view on usage to highlight leaks and/or overuse.

How can I be sure your water bills are accurate?

Ask your retailer how they calculate your bill and how often they read water meters.

Find out if you can submit your own meter readings to make your bill more accurate. For wastewater and trade effluent customers, ask your retailer to provide a detailed breakdown of all the aspects of their bill.

These bills can be complex, so make sure your retailer has a good understanding of all the elements to produce an accurate bill.

Will your water company still be around in a few years?

Since January 2018, 13 UK utility providers have gone bust, affecting over 700,000 customers.

You are entitled to know whether your water retailer has the financial stability to be able to support your business for years to come. What is their market share? What were their profit and loss figures last year? What is their credit score? The answers to all these questions can help you determine the stability and longevity of a water retailer.

How do I know I’m getting the best water supply deal?

Perhaps the most important question. Ask your retailer what they’re doing to make sure they’re getting the best deal for you. Ask about their track record, pricing structure and what they do to provide discounts for their customers.

Some water retailers are tied to the wholesaler in their area, meaning they’re less likely challenge the wholesaler about unfair pricing. Independent retailers, with no links to wholesalers, can often be more robust in the defence of their customers.

Can you tell me about the laws I have to comply with?

Water and wastewater management can include legal compliance that needs to be adhered to. Your water retailer should have a detailed understanding of all the necessary paperwork that needs to be completed for your business to be compliant.

Ask your water retailer what consent your business needs for its water and wastewater uses. Your retailer should also be able to tell you what allowances your company is eligible to apply for relating to drainage, leaks, trade effluent, etc.

The water market is open for your business to shop around for the best deal and the best service. The right water retailer for your business is one that can help you reduce water consumption, cut costs and provide responsive, knowledgeable customer service.


We're helping businesses in England & Scotland save on water bills, and with more 5-star Trustpilot reviews than all other water retailers combined - our customers recommend us.

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