Castle Water Reviews 

27,385
TrustScore 4.5 out of 5

4.5

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Review summary

Created with AI, based on recent reviews

Evaluating 2,123 reviews, reviewers overwhelmingly had a great experience with this company. Customers consistently praise the staff for their helpfulness, patience, and professionalism, making interactions pleasant. Many highlight exceptional customer service, noting competent, understanding agents who resolve queries efficiently. People also appreciate quick response times across phone, email, and live chat, often connecting with a real person very fast. However, some people were dissatisfied with aspects of service and payment. A few customers reported unexpected bills, late payment charges, or difficulties resolving disputes. These reviewers often described a lack of communication, delays, and feeling ignored, with problems remaining unresolved. Additionally, some mentioned experiencing long wait times when trying to reach customer service by phone.

What people talk about most

Staff

Reviewers highlight positive aspects of staff, frequently praising their professionalism, efficiency, and... See more

Customer service

Reviewers mention positive feedback about customer service, with many praising agents for being helpful,... See more

Service

Clients share ambiguous opinions on service, with many reviewers praising the professionalism, efficiency,... See more

Response time

Users describe positive interactions with response times, with many appreciating the promptness and... See more

Payment

Customers consistently note ambiguous experiences with payment, with many reporting issues such as hidden... See more

Reviews shaping this summary

Rated 5 out of 5 stars

After a long struggle to understand the reason why our direct debit was cancelled the team at Castle Water finally sorted it out with us. It is impossible to explain how complicated it was. Rachel Sha... See more

Company replied

Rated 5 out of 5 stars

One thanks is definitely not enough to Ryan Crawford. I made mistake when I moved out from Everflow. He help to understand their final invoice and give me many suggestions. He is very patient with me... See more

Company replied

Rated 5 out of 5 stars

Excellent service again today from castle water. as a business customer with multiple utilities accounts they are by far the easiest to deal with. Prompt to answer the phone, clear step by step assis... See more

Company replied

Rated 5 out of 5 stars

I got a problem with direct debit set up unsuccessfully without knowing that I got fine from Castle water. Luckily Mitchell and Craig McWalter help me sorted out the bills quickly as I reached them. T... See more

Company replied


Company details

  1. Water Utility Company

About Castle Water

Written by the company

Unlike many water retailers, Castle Water is not associated with any of the UK’s traditional water network owners. We are wholly independent. We only act in the interests of our customers and have an excellent track record of working proactively with water network owners to deliver the right results. Our customer services are delivered in the UK and we have account management teams to support customers nationwide.

We operate extended hours: Monday to Friday, 8am to 6pm, and you can contact us in a variety of ways.

Looking to switch water supplier?

Written by the company

Switch to Castle Water and save on your fixed water charges
Switch now to the UK's leading independent water retailer. Visit castlewater.co.uk/switch to get your instant quote.

Contact info

4.5

Excellent

TrustScore 4.5 out of 5

27K reviews

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4.5

All reviews

(27,385)

2,099 reviews in the last 12 months

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Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 5 out of 5 stars

Tracey

Tracey was polite, helpful and I think sorted things out.

July 22, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Bernard,

Thank you for leaving us a 5-star review. We are happy to hear that Tracey was very helpful and polite when resolving your query.

Kind regards,
Ellis

Rated 5 out of 5 stars

St Peters Pub Co Ltd

We contacted Castle Water to discuss our account following the receipt of an invoice which we could not fully understand, we spoke with Patricia Furie, Patricia advised us that the account had to be re-billed & re-credited due to a change in water services back in march, Patricia provided us with a full credit summary and an additional e-mail following the call giving us a explanation, Patricia was super professional & super patient, she's a credit to the Castle Water team

July 21, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Curtis,

Thank you for leaving us a 5-star review. We are happy to hear that Patricia was very professional and patient when resolving your query.

Kind regards,
Ellis

Rated 5 out of 5 stars

Excellent support from the call…

Excellent support from the call handler. Thank you very much.

July 21, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi David,

Thank you for leaving us a 5-star review. We are happy to hear that your advisor provided excellent support when resolving your query.

Kind regards,
Ellis

Rated 5 out of 5 stars

Satisfied customer

Chris Campbell the chap I spoke with was very helpful, he helped me with several issues that I had relating to change of address and services.

July 21, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello,

Thank you for leaving us a 5-star review. We are pleased to hear that Chris was very helpful when resolving your query.

Kind regards,
Ellis

Rated 5 out of 5 stars

I got a problem with direct debit set…

I got a problem with direct debit set up unsuccessfully without knowing that I got fine from Castle water. Luckily Mitchell and Craig McWalter help me sorted out the bills quickly as I reached them. Thank you.

July 15, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello,

Thank you for leaving us a 5-star review. We are glad to hear that Mitchell and Craig were very helpful when resolving your query.

Kind regards,
Ellis

Rated 1 out of 5 stars

VERY POOR CUSTOMER SERVICE RUDE STAFF

I am extremely disappointed and frustrated with my experience with Castle Water. The level of customer service I have received has been extremely poor, and I feel that customers are not being treated with the level of care, understanding, or professionalism that they deserve.

Trying to resolve issues with Castle Water has been unnecessarily stressful and time-consuming. When you contact customer service, you expect to receive clear information, proper assistance, and a genuine effort to resolve the problem. Unfortunately, my experience has been the complete opposite. I have found the communication and support to be very disappointing, leaving me feeling frustrated rather than helped.

What makes the situation even worse is the addition of late payment charges. I understand that bills need to be paid, but when there are issues with communication, account management, or resolving queries, adding extra charges only makes an already frustrating situation even worse. Customers should be given proper support and a fair opportunity to resolve any outstanding issues before being hit with additional charges.

I strongly believe that Castle Water needs to seriously improve its customer service and be more understanding and transparent when dealing with customers. It should not be this difficult or stressful to get a straightforward issue resolved, and customers should not feel like they are being ignored or simply passed from one department to another.

Overall, this has been an extremely disappointing experience. The poor customer service combined with the additional late payment charges has left me very unhappy with the way I have been treated. Based on my experience, I would not recommend Castle Water to others. I sincerely hope the company takes customer feedback seriously and makes significant improvements to the way it handles customer queries, communication, and payment issues.

July 21, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello,

Thank you for taking the time to leave us a review and sharing your concerns. In order for us to investigate your account, we have requested some additional information through Trustpilot. Once we have received this we will be in touch.

Kind regards,
Ellis

Rated 1 out of 5 stars

Lack of communication and unprofessional staff

Lack of communication and absolutely no empathy. This has been the worst experience I’ve had with any company. For the first time, I felt completely helpless.

After reading the Google reviews, I now understand why so many people shared similar experiences. Unfortunately, I made the mistake of choosing this company.

For me, customer service is one of the most important aspects of any business, and theirs is extremely poor. The lack of communication, empathy, and support throughout the process has been extremely disappointing.

To make matters worse, I received another call today asking me to make a payment, even though the payment had already been made and a plan of action was supposedly in place. This clearly shows a complete lack of internal communication and professionalism.

Based on my experience, I would not recommend this company.

July 21, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello,

Thanks for leaving us a review and sharing your concerns.

We have over 27,000 Trustpilot reviews of which 20,000+ are 5-star. This is more 5-star reviews than all other water retailers. In contrast our Google reviews are current sitting at approximately 700 reviews. This is evident that we have thousands of happy customers.

We take all our customers queries very seriously and strive to provide the best customer service. In order for us to investigate your account, we have requested some additional information through Trustpilot. Once we have received this we will be in touch

Kind regards,
Ellis

Rated 5 out of 5 stars

Christopher was wonderful

Christopher was wonderful! Helped me set everything up with ease

July 21, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Allie,

Thank you for leaving us a 5-star review. We are happy to hear that Christopher provided wonderful service when resolving your query.

Kind regards,
Ellis

Rated 2 out of 5 stars

Not Impressed

After coming to the end of the fixed deal with Brightwater/Castle Water the charges jumped so after shopping around , Castle Water offered to price match a competitor . All agree and signed/processed in the 7th July yet on the 21st July it’s still the original higher price . I’d assumed having signed a new deal the next bill would be the agreed price . Not impressed at all .

July 21, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Susan,

Thank you for taking the time to leave us a review and sharing your concerns. In order for us to investigate your account, we have requested some additional information through Trustpilot. Once we have received this we will be in touch.

Kind regards,
Ellis

Rated 5 out of 5 stars

The person on the phone was calm and…

The person on the phone was calm and controlled and resolved my issue fairly

July 20, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello,

Thank you for leaving us a 5-star review. We are happy to hear that your advisor was calm and fair when resolving your query.

Kind regards,
Ellis

Rated 5 out of 5 stars

Very nice caring man from Scotland

Very nice caring man from Scotland. Very polite and helpful.

July 20, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Janet,

Thank you for leaving us a 5-star review. We are glad to hear that your advisor was very helpful and polite when resolving your query.

Kind regards,
Ellis

Rated 5 out of 5 stars

Excellent service from Heather this…

Excellent service from Heather this morning, thank you.
Opened a new account and the details of which were added to our company profile in the portal immediately! If only all utility providers acted this promptly, wouldn't that be wonderful!

July 20, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Jackie,

Thank you for leaving us a 5-star review. We are happy to hear that Heather provided excellent service when resolving your query.

Kind regards,
Ellis

Rated 5 out of 5 stars

I spoke to Ewan Davidson and he was…

I spoke to Ewan Davidson and he was very helpful and explained the problem I had with my invoice received from Castle Water

July 20, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Jean,

Thank you for leaving us a 5-star review. We are glad to hear that Ewan was very helpful when answering your query.

Kind regards,
Chloe

Rated 5 out of 5 stars

Thomas was a lovely person to talk to…

Thomas was a lovely person to talk to and made the service very pleasant and helpful.

July 17, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Hugo,

Thank you for leaving us a 5-star review. We are happy to hear that Thomas was very pleasant and helpful when resolving your query.

Kind regards,
Chloe

Rated 1 out of 5 stars

Castle Water’s handling of our account…

Castle Water’s handling of our account has been absolutely appalling.
We took over a commercial property and, instead of billing us based on genuine meter readings and our actual usage, Castle Water applied estimated readings that resulted in a bill of more than £5,000. The meter could not be read at the time because the cover was too heavy for the previous managers to open, yet Castle Water still relied on estimates and treated them as though they were accurate.
We have submitted regular meter readings showing that our actual water usage is far lower than their estimates. Despite this, we have received confusing and contradictory information from their staff about what was owed, what had been credited and which account payments had been allocated to.
We paid £927.42 while the account was disputed because of the repeated calls and pressure, and we still believe this amount should be refunded. The previous owner also made a separate payment, yet Castle Water continued sending unclear responses and failed to provide a simple, transparent explanation of how the remaining balance was calculated.
Their complaint handling has been poor, repetitive and unhelpful. Instead of properly investigating the account, they appear to rely on automatically generated estimates and generic responses.
Running a business is stressful enough without having to spend hours correcting a water company’s inaccurate billing. Based on our experience, I would strongly advise other businesses to be extremely cautious before using Castle Water.

July 17, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Ahmet,

Thank you for leaving us a review and sharing your concerns.

Castle Water is only required to obtain one meter reading per year from each customer. If no additional readings are provided by you or the wholesaler, invoices are then based on estimated consumption using the most up-to-date readings available. Customers are responsible for ensuring their bills are paid on time to avoid additional charges, and if an overpayment occurs, a refund will be issued.

I have passed your query onto the relevant team to ensure this is reviewed.

Kind regards,
Ellis

Rated 5 out of 5 stars

I was able to get through very quickly and find effective solutions

I was able to get through very quickly and the response for respectful, thorough and clear. They were able to provide details and solutions in an effective manner

July 16, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello,

Thank you for leaving us a 5-star review. We are glad to hear that your advisor was able to resolve your query quickly and effectively.

Kind regards,
Chloe

Rated 5 out of 5 stars

Having some issues with our water…

Having some issues with our water supply upstairs and Rhys provided great guidance on the call today.

July 16, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Gary,

Thank you for leaving us a 5-star review. We are happy to hear that Rhys provided great service when answering your query.

Kind regards,
Chloe

Rated 5 out of 5 stars

Very helpful.Easy to speak to and…

Very helpful.Easy to speak to and understanding of my initial problem. Special mention to Rhys Ferguson for his support. Thanks.

July 16, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello,

Thank you for leaving us a 5-star review. We are happy to hear that Rhys was very helpful when supporting you with your query.

Kind regards,
Chloe

Rated 5 out of 5 stars

Top clas support

I was really struggling with the required online forms, but Sarah Byers provided top class help. Rather than just pointing me in the right direction, they filled in the forms on my behalf, asking me the relevant questions one by one and clearly explaining what each one meant. It made a stressful process feel simple and stress free. I Highly recommend!

July 16, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello,

Thank you for leaving us a 5-star review. We are happy to hear that Sarah provided great service and made resolving your query stress free.

Kind regards,
Chloe

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