Castle Water Reviews 

27,452
TrustScore 4.5 out of 5

4.5

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Review summary

Created with AI, based on recent reviews

Evaluating 2,099 reviews, reviewers overwhelmingly had a great experience with this company. Customers frequently praise the exceptionally helpful and polite staff members for providing clear, step-by-step guidance and going entirely out of their way to successfully resolve various account queries. Many people deeply appreciate the remarkably prompt responses and efficient support channels when dealing with their essential utility accounts. However, some customers also noted minor frustrations regarding unexpected billing complications, disputed charges, and occasionally long phone wait times before finally speaking to an advisor. A few people experienced notable difficulties involving communication errors, unexpected charges, or prolonged delays in properly resolving complex account disputes.

What people talk about most

Staff

Clients share positive opinions on staff, frequently praising their helpfulness, professionalism, and polite... See more

Customer service

Users describe positive interactions with customer_service, highlighting polite and efficient support from... See more

Service

Reviewers highlight ambiguous aspects of service, showing a strong division among customers. While many... See more

Response time

Consumers find response times to be positive, consistently praising staff for prompt and efficient... See more

Payment

People report ambiguous experiences with payment, reflecting a mix of frustration and occasional... 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

Thank goodness for Steven Simpson. I was trying use your online form, forms which so often do not work. People like Stephen are so important for customers, he was competent, professional and polite,... 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

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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No recent history of asking for reviews

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4.5

All reviews

(27,452)

1,975 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 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 .

21 July 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

20 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 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.

20 July 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!

20 July 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

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

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