Castle Water Reviews 

27,431
TrustScore 4.5 out of 5

4.5

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Review summary

Created with AI, based on recent reviews

Considering 2,112 reviews, reviewers overwhelmingly had a great experience with this company. Customers frequently praise the staff and customer service for being exceptionally helpful, professional, and understanding. Many people highlight the quick response times and efficiency in resolving queries, with agents often going above and beyond. Reviewers appreciate the clear communication and the ease of navigating their issues with patient and knowledgeable support. However, some customers noted long wait times when trying to reach customer service by phone. A few others experienced issues with billing, including unexpected invoices or direct debit problems. Additionally, some reviewers mentioned a lack of clear communication and difficulty in getting problems fully resolved.

What people talk about most

Staff

People report positive experiences with staff, frequently highlighting their knowledge, efficiency, and... See more

Customer service

Clients share positive opinions on customer service, with many reviewers praising the helpfulness,... See more

Service

Reviewers highlight ambiguous aspects of service, with many customers reporting positive experiences,... See more

Response time

Customers consistently note positive experiences with response times, with many praising the quick resolution... See more

Payment

Users describe ambiguous interactions with payment, with many reporting issues such as unexpected charges,... See more

Reviews shaping this summary

Rated 5 out of 5 stars

I contacted Castle Water as a new customer having recently taken over a shop in Surrey. I spoke with Francesca Cafolla who was kind, understanding and professional in her dealings with me. I subsequen... See more

Company replied

Rated 5 out of 5 stars

⭐️⭐️⭐️⭐️⭐️📞☺️Had to phone Castle water today due to issues I was having with my bill linked to my dyslexia and organisation. Francesca, was very supportive to me and patient while I had to try a... See more

Company replied

Rated 5 out of 5 stars

My Live Agent on Chat, Sarah Byers, was on it right from the start. Completely understanding my query and resolving it in very quick time. Really helpful and a credit to Castle Water. In my e... 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


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

(27,431)

1,956 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

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

20 July 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.

17 July 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.

17 July 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

16 July 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.

16 July 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.

16 July 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!

16 July 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

Rated 5 out of 5 stars

I dealt with an extremely helpful…

I dealt with an extremely helpful advisor Craig McWalter who was able to resolve my query without any issues!

16 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Kelly,

Thank you for leaving us a 5-star review. We are glad to hear that Craig was extremely helpful when resolving your query.

Kind regards,
Chloe

Rated 5 out of 5 stars

Extremely helpful competent courteous…

Extremely helpful competent courteous customer adviser called Jamie who went out of his way to sort out my query .
Over the years I’ve found Castle Water to be top notch!

16 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Shirley,

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

Kind regards,
Chloe

Rated 5 out of 5 stars

Curtis Sutherland was so helpful

Curtis Sutherland was so helpful, he sorted out our iuue and organised a amended bill, which we received in a few days. Thank you Curtis

9 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Alan,

Thank you for leaving us a 5-star review. We are very glad to hear that Curtis was helpful in resolving your query.

Kind regards,
Chloe

Rated 1 out of 5 stars

Terrible company to deal with.

Terrible company to deal with.
do not pay over the phone as they take double the amount owed and then it is a nightmare to get the money refunded.
No communication & long wait times on the phone.
Harassment phone calls daily.
Worst company I have ever had to deal with.
All staff say different things when you call up.
They do not even check meter readings.

30 January 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Laura,

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 4 out of 5 stars

Joe M listened (or read over chat) my…

Joe M listened to (or read as the interaction was over chat) my query and was able to deal efficiently with the question.

15 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Clare,

Thank you for leaving a positive review. It is great to hear that Joe was very helpful when resolving your query.

Kind regards,
Ellis

Rated 1 out of 5 stars

I'm sorry reading other reviews i…

I'm sorry reading other reviews i thought i was dealing with a different company ,put' un' in front of most words and it sums up my experience with them ,unhelpful uncooperative ,unfair, uncompromising in fact a bloody nightmare to deal with ,my last bill for 6 month in advance was more than i spent last year ,give us £1400+ upfront on estimated meter readings for water up until october 26 .
Oh and if you don't pay we will fine you and effect your credit score .
NO discussions......I'M OFF but no doubt they will make that awkward.

15 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Clive

Thanks for leaving a review. About 90% of Castle customers are billed monthly in arrears, with most paying by direct debit. There wouldn't normally be any problem moving you to this - you can provide monthly meter reads via the portal (on or around the 25th of the month in order for the read to be used in the next bill), and only be billed for water you know you have used. I'm sending an info request via TrustPilot - if you can confirm your account number and your preferred contact details we'll look into your billing and see what has gone wrong, and contact you to move you to monthly billing.

John

Rated 5 out of 5 stars

Excellent service

Excellent service

15 July 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 you received excellent service from your advisor when resolving your query.

Kind regards,
Chloe

Rated 5 out of 5 stars

Lysa Cruz was great

15 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Aileen,

Thank you for leaving us a 5-star review. We are pleased to hear that Lysa provided great service when resolving your query.

Kind regards,
Chloe

Rated 5 out of 5 stars

Perfection

Heather Stevenson was the perfect person to speak with. She listened, wanted to make things right and give a positive experience. If only every employee one needs to connect with was like this! Thank you!

15 July 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 Heather provided a positive experience when resolving your query.

Kind regards,
Chloe

Rated 5 out of 5 stars

Helpful

Friendly, helpful, patient and cheerful man called William Reid helped me with my payment. Thank you.

10 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Jane,

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

Kind regards,
Chloe

Rated 5 out of 5 stars

Excellent chat service

I was unable to upload a photo from my computer for the meter reading.
I used the chat box and was able to give the reading and upload the photo.
Great service, thankyou.

14 July 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 provided great service when resolving your query.

Kind regards,
Chloe

Rated 5 out of 5 stars

Michelle Sek is the most helpful agent…

Michelle Sek is the most helpful agent I have dealt with at Castle Water. I have not had a great experience overall with the company and find their processes very complex, but she was very helpful, clear and fast at resolving my query.

14 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Joseph,

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

Kind regards,
Chloe

Rated 5 out of 5 stars

Advisor was very helpful and polite

Advisor was very helpful and polite. Sorted out my query there and then. Thank you very much.

14 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Sally,

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

Kind regards,
Chloe

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