Castle Water Reviews 

27,384
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

(27,384)

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

Excellent Customer Service

Excellent Customer Service: Spoke to Lewis with a number of queries I had regarding our account. He handled the whole thing in an excellent and friendly and helpful manner. Then confirmed it all in an email

July 10, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Marios,

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

Kind regards,
Ellis

Rated 5 out of 5 stars

Jacksson Vadera from Ayr office was exceptional- thank you

I was very fortunate to be under the care of Jacksson Vadera from the Ary office during my account opening process. I struggle with forms and numbers and he was incredibly patient and went out of his way to be as helpful as he could. He was so professional and courteous. He also was very diligent and picked up errors on my form that were very subtle but significant. Again, he showed great patience and enabled me to fill out the forms correctly. I do find the castle water systems quite clunky to use. I feel the process could have been a lot smoother. If it hadn't been for Jacksson's help I would have taken my business elsewhere. Hopefully now it will all be plain sailing. But I really can't thank Jacksson enough. He is a credit to the company.

July 10, 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 Jacksson was very professional and helpful when resolving your query.

Kind regards,
Chloe

Rated 5 out of 5 stars

Spoke to William Read and was very…

Spoke to William Read and was very polite and helpful

July 10, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Veronica,

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

Kind regards,
Ellis

Rated 5 out of 5 stars

Kesleigh Clark was so helpful and very…

Kesleigh Clark was so helpful and very professional. My enquiry was dealt with quickly and efficiently. Excellent service

July 10, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Stuart,

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

Kind regards,
Ellis

Rated 5 out of 5 stars

Great Service from Robert and situation…

Great Service from Robert and situation resolved quickly

July 9, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Karen,

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

Kind regards,
Ellis

Rated 3 out of 5 stars

initial experience not great but ended up good

initial experience not great , although we were dealing with my debt there was very off handish communication and huge charges . Finally someone who listens Josh Sturrock listened to my concern and actually arranged a refund of what i considered grossly expensive and unfair charges , Thankyou Josh You would have got a 5star if it was just you

July 9, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello,

Thank you for leaving us a review, we are glad to hear that Josh was helpful in resolving your query. We appreciate your feedback, if you have any further concerns please do not hesitate to contact us via the portal or using our live webchat.

Kind regards

Ellis

Rated 5 out of 5 stars

Excellent Customer Service

I spoke to Robert - I was closing the account as we have just sold the property.
Robert took my final meter reading and advised me of the balance on our account, which was the reason for my call.

July 9, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Margaret,

Thank you for leaving us a 5-star review. We are happy to hear that Robert was very helpful when taking your final meter reading.

Kind regards,
Ellis

Rated 5 out of 5 stars

Spoke to William Reid who helped with…

Spoke to William Reid who helped with our issue of a high bill and sent me relevant forms to assist in sorting out a sewerage issue

July 9, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Tim,

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

Kind regards,
Ellis

Rated 5 out of 5 stars

I spoke to Heather who was most helpful…

I spoke to Heather who was most helpful and gave me everything I needed in today's call.

July 9, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello,

Thank you for leaving us a 5-star review. It is great to hear that Heather was very helpful when resolving your query.

Kind regards,
Ellis

Rated 5 out of 5 stars

Carole Logan was brilliant today

Carole Logan was brilliant today, finally got this issue resolved with Castle Water/Thames Water, she was thorough and got the job done! Well done Carole.

July 7, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Vanessa,

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

Kind regards,
Ellis

Rated 5 out of 5 stars

Robert was extremely helpful

Robert was extremely helpful, friendly and polite.

July 7, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Sophie,

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

Kind regards,
Ellis

Rated 5 out of 5 stars

Great service today from Castle Water

Great service today from Castle Water. Called and got to talk to a human quickly (that alone is five stars). Christopher Milligan was polite, helpful and very speedy sending me the information required. Thank you for your assistance today, CM. :)

July 8, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Julie,

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

Kind regards,
Ellis

Rated 5 out of 5 stars

West Wycombe Cricket Clubs Leak Allowance Claim

Our Leak allowance claim was very complicated but after a detailed application it was successful which I don't think would have been the case without the support form Castle Waters staff with Rebecca Dewar helping with what was required for the application and then keeping us informed during the process.
The whole process took from October 2025 until June 2026

June 17, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Graham,

Thank you for leaving us a 5-star review. We are pleased to hear that Rebecca was very helpful when ensuring you stayed informed throughout the query process.

Kind regards,
Ellis

Rated 5 out of 5 stars

He is reliable and kind

Jamie Hulme gave me simple to understand sympathetic and useful help and advice He cleared up a problem completely for me I send my recommendation
Yours Susan Birdh

July 8, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Susan,

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

Kind regards,
Ellis

Rated 4 out of 5 stars

At least Castle Water has one agent who knows what they are doing

After a few emails and a telephone confrontation with a previous customer services agent who obviously did not know what she was doing another agent named Mhaini Grant has looked at our case and converted a £908 debt and threat of disconnection into a £193 credit. Great job Mhaini shame some of your fellow service agents are not as knowledgable as you

July 8, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Mr Woods,

Thank you for leaving a positive review. It is great to hear that Mhaini was very helpful when resolving your query. If you have any further concerns please do not hesitate to contact us via the portal or using our live webchat.

Kind regards,
Ellis

Rated 5 out of 5 stars

We've been getting calls from some-one…

We've been getting calls from some-one saying they are Castle Water, so I thought I'd phone and check, definitely not from Castle Water. Thankyou William Reid for checking for me, and suggesting "who called me" as the number comes up as negative, and from a Telephone Holdings company

July 8, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Hayley,

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

Kind regards,
Ellis

Rated 5 out of 5 stars

Joe Murtagh......

Joe Murtagh......
Only because of Joe's tenacity, patience and for the fact he kept on the chat - did I not throw the towel in and give up!

EXCELLENT customer service

Remember to share the dividend with our workers and not just with your shareholders!

July 8, 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 Joe provided excellent service when resolving your query.

Kind regards,
Ellis

Rated 5 out of 5 stars

What a helpful member of staff

What a helpful member of staff. Dreaded dealing with the chat bot but was put through to a member of staff who was incredibly helpful and really understood my problem and what I wanted to achieve. Walked my through it, answered further questions and I left feeling a great sense of relief. Thank you Joe Murtagh for all the assistance

July 8, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Robin,

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

Kind regards,
Ellis

Rated 5 out of 5 stars

Great Customer Service…

Brilliant service from Carole at Castle Water today, solved my problem quickly and very professionally, she’s an asset to their team!

July 8, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hi Debs,

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

Kind regards,
Ellis

Rated 5 out of 5 stars

Actually spoke to a brilliant person…

Actually spoke to a brilliant person who sorted everything out

July 8, 2026
Unprompted review
Castle Water logo

Reply from Castle Water

Hello Timothy,

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

Kind regards,
Ellis

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