Control Flow Technologies Group Ltd Reviews 

49
TrustScore 3.5 uit 5

3,3

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Beoordeeld met 5 van de 5 sterren

The visit was quick, easy and hassle-free. The engineer came to my home and explained the process, then quickly installed the device. It was done before I knew it. I can't see any difference in wate... Toon meer

Bedrijf heeft geantwoord

Beoordeeld met 1 van de 5 sterren

We received a visit from this company unbeknown to us that they would be attending. Apparently 2 SMS 1 Email were sent to us and i can honestly say we received nothing. After talking to the company... Toon meer

Beoordeeld met 1 van de 5 sterren

Very pushy. Sent a letter which I was getting around to dealing with. They cold called at the doorstep confusing my elderly parents, I was luckily there to tell the cold called to go away.... Toon meer

Bedrijf heeft geantwoord

Beoordeeld met 5 van de 5 sterren

I really recommend booking with Control Flow. The water audit was offered to me for free and was no hassle whatsoever. I look forward to seeing my bills decrease and helping save water.

Bedrijf heeft geantwoord

Bedrijfsgegevens

  1. Stroomregelingsproduct groothandelaar

Geschreven door het bedrijf

At Control Flow Technologies Group, we help customers and organisations save water, energy, and money with our patented HL2024® technology. With our Control Flow HL2024® devices, we deliver a fully tailored, turnkey service that tackles some of the UK’s most pressing challenges: water scarcity, rising utility costs, and nutrient neutrality. We work with the UK's major water companies to deliver free Water Audits to customers, helping them save water and money on their utility bills.


Contactgegevens

3,3

Gemiddeld

TrustScore 3.5 uit 5

49 reviews

5 sterren
4 sterren
3 sterren
2 sterren
1 ster

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Heeft 78% van zijn negatieve reviews beantwoord

Reageert doorgaans binnen 2 weken

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3,3

Alle reviews

(49)

34 reviews in de afgelopen 12 maanden

Een review schrijven
Bedrijven op Trustpilot mogen geen beloningen aanbieden of betalen om reviews te verbergen. Reviews zijn de meningen van individuele gebruikers en niet van Trustpilot. Meer informatie

Beoordeeld met 4 van de 5 sterren

Great service!

Great service! Very friendly & patient. Thank you very much.

17 maart 2026
Review zonder uitnodiging
Logo Control Flow Technologies Group Ltd

Antwoord van Control Flow Technologies Group Ltd

Hi Em,

Thank you so much for taking the time to leave this review. We are so glad you had a great experience with us.

Beoordeeld met 5 van de 5 sterren

Overall great experience!

Overall great experience!

Had a survey carried out to see how Control Flow could help with my water usage.

Very polite and informative during the initial survey.

A plumber was booked for a few days after to install a water saving device to my water meter.

The Plumber arrived and was very professional, courteous and the installation was seamless.

If you want help with your water usage get in touch with Control Flow who are experts in what they do.

25 februari 2026
Review zonder uitnodiging
Logo Control Flow Technologies Group Ltd

Antwoord van Control Flow Technologies Group Ltd

Hi Amy,

Thank you so much for leaving this lovely review. We are so pleased you were happy with your service and our plumber impressed you and can't wait to see you start saving on your bills!

Beoordeeld met 5 van de 5 sterren

Really happy with the service

Really happy with the service, thanks so much!

25 februari 2026
Review zonder uitnodiging
Logo Control Flow Technologies Group Ltd

Antwoord van Control Flow Technologies Group Ltd

Hi Tom,

We really appreciate you taking your time to leave us a review. We are so glad you were happy with your service.

Beoordeeld met 5 van de 5 sterren

Fantastic!!!

What a brilliant service, the operative I spoke to was patient kind and considerate to all my queries.
Will definitely use a again

4 maart 2026
Review zonder uitnodiging
Logo Control Flow Technologies Group Ltd

Antwoord van Control Flow Technologies Group Ltd

Hi Antonia,

Thanks so much for taking your time to leave a review. We are so please you were happy with your experience with us!

Beoordeeld met 5 van de 5 sterren

I was contacted by my water company for…

I was contacted by my water company for this free audit and it was so quick! Really recommend

2 februari 2026
Review zonder uitnodiging
Logo Control Flow Technologies Group Ltd

Antwoord van Control Flow Technologies Group Ltd

Hi Angel,

Thank you so much for your review. We are so pleased to hear about your experience with us!

Beoordeeld met 5 van de 5 sterren

Would definitely recommend

I would highly recommend! Brilliant service, super fast appointment and our plumber was so nice.

9 januari 2026
Review zonder uitnodiging
Logo Control Flow Technologies Group Ltd

Antwoord van Control Flow Technologies Group Ltd

Hi Jake,

Thanks so much for your review and we are so pleased to hear about your experience with us.

Beoordeeld met 4 van de 5 sterren

Couldn’t recommend this service more

Couldn’t recommend this service more. I got this free through my water company and I have noticed no difference to my water pressure at all, but hopefully will see a difference in my bills soon! Really nice plumber too.

18 februari 2026
Review zonder uitnodiging
Logo Control Flow Technologies Group Ltd

Antwoord van Control Flow Technologies Group Ltd

Hi Hollie and Sam,

Thank you so much for your lovely review - it means a lot to our team to know you had a good experience with us. We can't wait for you to see your savings soon!

Beoordeeld met 1 van de 5 sterren

Turned up unannounced saying here to…

Turned up unannounced saying here to fit device on water meter. Had had no prior information and kept talking at me. I ended up letting him in and he did something to my taps. I was trying to wfh at the time and felt completely derailed. I told him that I needed to think about things and he gave me a qr code to scan.
Not surprised to see such a low trust pilot score.
I'm actually fuming now as we have a trading standards sticker on the door saying no cold callers which he completely ignored. Having a name badge does not exempt you from being a cold caller if you don't have an appointment. Even if they saved me £1000 on my bill I don't want this company anywhere near me.

23 februari 2026
Review zonder uitnodiging
Logo Control Flow Technologies Group Ltd

Antwoord van Control Flow Technologies Group Ltd

Hi there,

We are very sorry about your recent experience with us, this is not the service we aim to provide to our customers.

We work directly with many of the UK water companies, and your water company will be someone we work with. As part of this project, the goal is to help customers save on their utility bills by having a Water Audit carried out and potentially installing a water-saving device for free (as this is funded by your water company).

Our auditors are trained to visit properties to offer this free service; however, you should also have received a letter or email from us prior to any visit.

Your details were provided to us by United Utilities, as they identified that your property may benefit from one of our water-saving devices as part of their water efficiency programme.

This service is completely optional, and you do not need to go ahead with it, and we are very sorry if you were made to feel pressured. If you could contact us directly with more information, we will look into this to ensure it does not happen again.

Email: watersaving@controlflow.co.uk

Phone: 0800 783 7007

Beoordeeld met 5 van de 5 sterren

Great product and service. Recommended


 
"I recently had a free water audit carried out after receiving an email from my water company. It explained this could help me save on my bills so I thought why not. The appointment was super quick and easy, and I did have a water-saving device installed by a very friendly plumber. I couldn't recommend this service highly enough

30 januari 2026
Review zonder uitnodiging
Logo Control Flow Technologies Group Ltd

Antwoord van Control Flow Technologies Group Ltd

Hi Debbie,

Thank you for taking the time to leave such a lovely review. It means a lot to our team to know we made a positive difference, and we can't wait for you to see the benefits of our device at your property!

Beoordeeld met 5 van de 5 sterren

Great experience

Great service. Control Flow person named Shaun arrived on time, was helpful explaining everything then checked for leaks and fixed a dripping tap in our downstairs toilet. He installed the water saving device in less than 45 minutes. Looking forward to seeing the reduction in our water bill.

18 februari 2026
Review zonder uitnodiging
Logo Control Flow Technologies Group Ltd

Antwoord van Control Flow Technologies Group Ltd

Hi Edward,

Thank you for your kind review. We’re pleased to hear Shaun provided clear explanations and completed the installation efficiently.

We really appreciate your feedback!

Beoordeeld met 1 van de 5 sterren

Two guys knocked on the door saying…

Two guys knocked on the door saying they were from United Utilities, my house had been flagged as high water usage and they needed to come in and take a meter reading. The meter had been read a few days ago, my water usage is as low as it's possible to get, the guys were in unbranded high viz. I sent them on their way, to be told I should let them in next time. Called United Utilities. They hadn't sent them. So called police who conducted enquiries and tracked them to this company. They had my name, data breach, and lied through their teeth to try to enter my home. GMP are aware and United Utilities will be getting complaints.

27 januari 2026
Review zonder uitnodiging
Logo Control Flow Technologies Group Ltd

Antwoord van Control Flow Technologies Group Ltd

Hi Paul,

Thank you for bringing this to our attention. We are very sorry for your experience. Our aim is to make all of our customers feel comfortable when we visit a property, and we want to make this right.

We work directly with many of the UK water companies, and United Utilities are one of our partners. As part of this project, the goal is to help customers save on their utility bills by having a Water Audit carried out and potentially installing a water-saving device for free (as this is funded by your water company).

We are sorry that you were subsequently advised that the visit had not been arranged by United Utilities. We understand how confusing and concerning that must have been. We can assure you that we do undertake authorised work in partnership with them.

We would also like to reassure you that we do not access or obtain customer information unlawfully. Our teams are expected to always carry identification and clearly explain who they are, who they are working on behalf of, and the purpose of their visit. We also fully respect that no one is ever obliged to allow entry if they feel unsure.

We are reviewing this matter internally to understand exactly what happened in your case, as this does not reflect the standard we expect. Your feedback is extremely important in helping us improve.

If you are able to contact us directly with any further information, we will look into this as a priority.

Email: watersaving@controlflow.co.uk

Phone: 0800 783 7007

Beoordeeld met 1 van de 5 sterren

A ' NO SHOW ' by Control Flow

Like the previous poster I've had a similar experience with Control Flow failing to attend an appointment. Utterly disgraceful. No call, text or email of apology - nout!
I arranged the appointment on the phone and was informed that 'someone' would be visiting my property between 9am - 1pm today 28th/ 01/26.
I've waited in all morning only to hear NOTHING! At least Cenergist turned up last time.
United Utlities will need to sit down and check the integrity of the companies they are recommending. Someone in high office hasn't done their homework- please monitor the failed appointments or as in my case the 'No Show.'
United Utilities may want customers to save water but customers need to save time aswell. I've wasted 4 hours this morning. Unprofessional and 'casual' to say the least.

28 januari 2026
Review zonder uitnodiging
Logo Control Flow Technologies Group Ltd

Antwoord van Control Flow Technologies Group Ltd

Hi Marian,

We’re really sorry that we missed your original appointment, we completely understand how frustrating and inconvenient that must have been. We will be looking into this further, as this not the level of service we aim to provide for our customers and want to fix this for you immediately.

We would love to rearrange your appointment and book you in on a date and time that is convenient to you, if you still wish to go ahead with it. Could you please let us know your contact details, and one of our team will contact you ASAP.

You can also contact us directly by email (watersaving@controlflow.co.uk) or call us on 0800 783 7007, and we will help sort this.

Beoordeeld met 1 van de 5 sterren

Company made appointment

Company made appointment, but never turned up

19 januari 2026
Review zonder uitnodiging
Logo Control Flow Technologies Group Ltd

Antwoord van Control Flow Technologies Group Ltd

Hi Janet,

We’re really sorry that we missed your original appointment, we completely understand how frustrating and inconvenient that must have been. This not the level of service we aim to provide for our customers.

Our team has recently been back in touch to try and rearrange your appointment, but we understand this isn't something you would be interested in right now and can only apologise for the inconvenience this has caused.

If you do change your mind, and would like to book back in, please contact us directly by email (watersaving@controlflow.co.uk) or call us on 0800 783 7007, and we will help sort this.

Beoordeeld met 1 van de 5 sterren

Very disappointing customer service

Very disappointing customer service. I was pressured into installing a control valve in just one day, with the promise that they would respond immediately if any issues arose. From an hour after installation, I began contacting their customer service team — they took down the details but never followed up or resolved the problem. It’s clear they are focused solely on pushing more installations to generate revenue from the water company, with little to no concern for the customer issues.

21 november 2025
Review zonder uitnodiging
Beoordeeld met 1 van de 5 sterren

Home Visit

A Cenergist operative came to my home following referral from United Utilities.
Complete waste of time.
Was here for about 15 minutes.
All he did was alter the flow to my taps which I altered back again after he left because there was so much noise due to the restriction of the flow coming through.
Think I had more knowledge of how a house water system works than he did

4 augustus 2025
Review zonder uitnodiging
Beoordeeld met 5 van de 5 sterren

ControlFlow Experience

The engineer (Cole) who contacted us was a consummate professional, courteous and respectful of the property, who explained the product and its benefits clearly and well. His review was detailed, after which he proceeded with the installations as appropriate without any oversight from me. The time for installation was less than an hour, very impressive, and he also was mindful of any water spillages, which showed enormous consideration, again a sign of his professionalism.

I am eagerly looking forward to my reduced water and gas bills!

11 maart 2024
Review zonder uitnodiging
Beoordeeld met 5 van de 5 sterren

Great Product and Professional Service

Very professional service from start to finish. The engineer was very polite and explained the products and benefits very well. The install was quick and easy -no mess. Looking forward to my reduced water and gas bills.

26 februari 2024
Review zonder uitnodiging
Beoordeeld met 5 van de 5 sterren

Water Saving

I was contacted by an engineer who explained we could have a device fitted to our water meter to reduce the flow, and save us money. A date was arranged, and the device fitted. The flow has been reduced, but not so it impacts general use. If it helps to save the amount of water used, and cuts my water bill, then it's a win win.
The engineer was professional, friendly and I'm pleased to have had the device fitted.

10 juli 2023
Review zonder uitnodiging
Beoordeeld met 5 van de 5 sterren

Knowlegable experts to save you water

Its imporant to me to reduce impact and conserving water is one of my aims. Control Flow came to my house on time as booked, did a survey and took some measurements, and ran me through some options to save water. They showed me what the likely savings would be (around 60L per day). Then they quickly and neatly made the changes. They were tidy, considerate and friendly. I'm delighted with the results.

3 maart 2023
Review zonder uitnodiging
Beoordeeld met 5 van de 5 sterren

High Quality Products, Professional Service, Great Savings

Given the cost of living crisis, I’ve been looking for ways to reduce our household bills and be as efficient as I can be. We’ve also recently brought a lovely baby girl home so we are conscious that we will be using more energy and water than we are used to. I contacted Control Flow earlier this year to arrange for an engineer to visit to give us some advice on what products may be suitable for our property. An engineer named Kristian attended. It was so straight forward. As I’m on a water meter he advised that he could install a product in the meter chamber outside so we wouldn’t have anything visible in our property and he wouldn’t need to cut into any pipework. The installation took about 25 minutes and he gave us some advice on how to maximise our savings. I’ve been monitoring our usage through meter readings and we are seeing some great savings. Can’t wait to see how much we save financially. Highly recommend!

3 februari 2023
Review zonder uitnodiging

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