Castle Water Reviews 

27,403
TrustScore 4.5 out of 5

4.5

While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more

To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more

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

5-star
4-star
3-star
2-star
1-star

Asks customers to review

This company invites their customers to review, whether positive or negative

At Trustpilot, it's all about human content. This business can also access our AI-assisted response tool which helps them draft replies.

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

4.5

All reviews

(27,403)

2,116 reviews in the last 12 months

Write a review
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

Excellent customer service from Heather…

Excellent customer service from Heather Stevenson, she handled my query quickly, kept me updated throughout and resolved everything without any hassle. Clear communication and a smooth experience from start to finish!!

27 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Jenusan,

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

Kind regards,
Ellis

Rated 1 out of 5 stars

I have had countless issues with my…

I have had countless issues with my most recent bill. I have set up direct debits on 3 occasions now, been assured all have been successful but my direct debit still doesn’t appear to be set up.
I have tried to pay my bill probably around 20 times on multiple different days but each time there has been issues out of my control (usually just inexplicable faults on the website). I ended up with a late charge but thankfully they were kind enough to remove this when I called to explain the situation. However I have now just had a letter to say I will be being visited by debt collection services.
I am very fed up with this company, who already charge me an extortionate amount for a very small amount of water that I use. I would not recommend.

27 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Amber,

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

We aim to make managing accounts and payments as straightforward as possible. I want to assure you that your query has been escalated and will be reviewed to resolve the issue. Our team will reach out to you shortly with an update.

If you have any further questions please do not hesitate to contact us via the portal or using our live webchat.

Kind regards,
Ellis

Rated 5 out of 5 stars

Its always hit and miss

Its always hit and miss, but today was a hit with a very helpful customer service advisor - Ewan Davidson

27 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Linda,

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

Kind regards,
Ellis

Rated 5 out of 5 stars

Helpful Assistant

Really easy to connect to someone, helpful advice and the issue was quickly resolved

27 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Mrs Walker,

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

Kind regards,
Ellis

Rated 5 out of 5 stars

Great customer service

A little bit of a wait on the phone before i spoke to somebody, but overall the gentleman serving me was very helpful, very clear, and very friendly.

27 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Gemma,

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

Kind regards,
Ellis

Rated 1 out of 5 stars

Disgusting treatment by their…

Disgusting treatment by their representative (sadly I didnt get a name) and absolutely zero resolution. Avoid at all costs. I took over a business which had an account with Castle Water and they have been an absolute nightmare to deal with ever since. I have just called to try and understand why a payment was taken without authorisation and I spoke to one of the rudest staff members I have ever had to deal with. She kept interupting me as I tried to explain what had happened historically, and then accused me of interupting her and being rude. I hadnt even been able to complete a sentence. She then put the phone down on me. This is after 15 minutes of being on hold. At no point was my voice raised or was I being rude. Utterly disgraceful. There is no resolution. All I want to do is get the account paid off so I can leave this company once and for all.

27 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Sarah,

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

I had a great experience dealing with…

I had a great experience dealing with Sarah Byers. She was extremely helpful, accommodating, and took the time to answer all of my questions clearly and thoroughly.

Sarah explained the billing and liability position in detail, ensuring I understood why the account had been opened, who was responsible for the charges, and how the water supply was linked to the property. She was knowledgeable, patient, and made what could have been a complicated issue very straightforward.

Most importantly, she resolved the issue quickly and efficiently. Her excellent customer service and willingness to help were greatly appreciated.

Thank you, Sarah, for your professionalism and support.

27 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Rebecca,

Thank you for leaving us a 5-star review. We are glad to hear that Sarah was extremely helpful, knowledgeable and patient when resolving your query efficiently.

Kind regards,
Ellis

Rated 4 out of 5 stars

Good Customer Service

I was put through quickly to an agent, Kelseigh Clark, who helped direct my query to the relevant department.

27 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Jennifer,

Thank you for leaving us a positive review. We are happy to hear that Kelseigh provided good service when directing your query to the correct department.

Kind regards,
Ellis

Rated 5 out of 5 stars

Sarah Byers was very helpful and polite…

Sarah Byers was very helpful and polite during my live chat. She answered my questions clearly and provided excellent customer service. Thank you for making the process quick and easy.

27 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Linden,

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

Kind regards,
Ellis

Rated 5 out of 5 stars

The happy ending

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 Shaw Jamie, Robert and Tyler are just a few of the team whose names I recall but everyone pulled the stops out to help.

16 July 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 your advisors were very helpful when resolving your query.

Kind regards,
Ellis

Rated 5 out of 5 stars

Sarah (Byers) - Superb!

Sarah (Byers) was extremely helpful and patient with my many questions. She went out of her way to find out solution and see if she could overcome my issues. While not all were resolvable, I felt I could go back in the future and ask again when i had more details.

24 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Grant,

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

Kind regards,
Ellis

Rated 5 out of 5 stars

Great customer service from Craig…

Great customer service from Craig McWalter, good communication and fixed my problem quickly

24 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Steve,

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

Kind regards,
Ellis

Rated 5 out of 5 stars

Problem solved

Problem solved. Profession and efficiency
Thank you very much

23 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 professional and efficient when resolving your query.

Kind regards,
Ellis

Rated 5 out of 5 stars

Craig M was really quick & efficient

Craig M was really quick & efficient. Really appreciate his responsiveness in sorting my query

23 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Ben,

Thank you for leaving us a 5-star review. We are pleased to hear that Craig provided quick and efficient service when resolving your query.

Kind regards,
Ellis

Rated 5 out of 5 stars

Castle Water - Trustworthy company - Well done

I have been a Business owner for 11 years. My interaction with Utility companies is almost always negative. Not this time however. After replacing a faulty water meter, Castle Water recalculated our bills in favour of us (the customer) and credited our account accordingly. Super trustworthy. Well done Castle Water. And thankyou to Rhys who handled the issue very professionally and was a fantastic help.

23 July 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Paul,

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

Kind regards,
Ellis

Rated 5 out of 5 stars

Tracey

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

22 July 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

21 July 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.

21 July 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.

21 July 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

The Trustpilot Experience

Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.

We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.

Learn about Trustpilot’s review process.

Here are 8 tips for writing great reviews.

Verification can help ensure real people are writing the reviews you read on Trustpilot.

Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.

Take a closer look