I installed the unit myself in January 2026 so it has been operational for nearly 7 months. I previously had various water softeners for 30 plus years. I do not notice any limescale build up excep... See more
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I installed the unit myself in January 2026 so it has been operational for nearly 7 months. I previously had various water softeners for 30 plus years. I do not notice any limescale build up excep... See more
Company replied
We decided to give Halcyan a go as we have just had a new kitchen. For us it has meant going from a salt softener to Halcyan. My husband installed it with no issues about 3 months ago. I was anxious... See more
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I’ve had my Halcyan Water Conditioner for five years now and I’m really impressed. It was incredibly easy to install, and the improvement in water quality has been noticeable ever since. Great value f... See more
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I discovered Halcyon on line & was impressed by the technology that was clearly explained. 30 year guarantee & the option to return it within a year if not happy secured it for me. I like the fact th... See more
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Halcyan treats your hard water, preventing and removing limescale reliably and efficiently. The in-line unit does so without adding anything to your water, or removing anything from it. This ensures Halcyan is the most sustainable and longest lasting water conditioner available in the UK. It's simple to install and you can relax with our 30 year warranty.
The Old Bakery, 11A Canford Lane, BS9 3DB, Bristol, United Kingdom
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In my last house I had a water softener but in my new house I didn’t have enough space and also couldn’t separate the cold supply to the kitchen from the rest of the supply pipes, so salt-using softeners were not an option.
The Halcyan unit very neatly fits behind the washing machine where the rising main comes into the house. A very neat job and the plumber was very pleased how easy it was to fit.
3 weeks in and the taps definitely are easier to clean. There is still a bit of scale in the kettle, but not as bad as before. I live in a very hard water area.

Reply from Halcyan Water Conditioners
For years I wanted a water softener, but was put off by the cost of £100 a year on salt. After Googling for “Water Softener”, the Halycan website appears to have endorsement quotes the Independent and Evening Standard. Those logos and endorsements added (misplaced) legitimacy.
I called a sales representative who said water goes through the pipe, in a special blend of 12 metals (In retrospect, this claim sounds a bit like the Colonels secret recipe) and changes the chemical composition of calcite to aragonite. In layman’s terms, the claim is that the device does not remove any limescale, but it makes it easier to wipe off. Do some in-depth research if you think this is a valid claim for a pipe or pseudo-science marketing.
I was told the device had a money-back guarantee (other reviewers here have failed to get that back). I desperately wanted to believe in this might work, so ordered one for £770. Upon arrival, my heckles immediately went up. If you had spent £800 on a product, would you expect it to arrive a cheap, plain, unbranded box and your name and address scrawled on it in felt tip pen?
I then searched and found the company on Trustpilot. I noted that 20% of the reviews had 1 star, and read them all. That's 1 in 5 people stating the device did not work and had a bad experience. Their website still says “96% customer satisfaction”,while linking to Trustpilot underneath, with only 80% happy. Some 5 stars review are not right; the device absolutely can't improve the water taste. ‘Some’ of the reviewers do not appear genuine (Check their Trustpilot profiles, and other products they have reviewed and their review content).
I found a long-running thread about Halycan, debating in low-level, technical terms the validity of the claimed effect. I am absolutely no chemist, but was not happy with what I read.
I then found, from 2016 to 2020, the Halycan website made false claims about the device having capability to "soften" water. The Advertising Standards Agency many years ago made rulings (2007, 2013) about companies about making claims softening water, which you can read about if you search for 'ASA water treatment devices'. Water Softeners are re-filled with 25kg bags of salt/salt tablets for £12 every 4-6 weeks. Why did Halcyan ignore the ASA and make claims their device was a water softener on their website from 2016-2020. Old websites content can still be viewed via the web.archive website (views snapshots in time of websites). Direct Halycan quotes as follows (there were many more): "Q. How do you enjoy all the benefits of scale free, softer water with the mineral rich advantages of hard water?". "Wake up to softer water! Your hard water solution is here.. really here!"
In 2020, these vanished from their website (as a result of complaints/enforcement action?). They were replaced with terms like "softer-feeling" and "Gentler water".
To this day Halycan leverages the keyword “Softener” in its both its URLs and anchored text on its website. This is a murky marketing tactic to attract Google Search traffic to the people looking for water softeners.
I checked the quotes from the two newspapers. Google the quote from the Independant right now. You'll see the origin 'article title' is for many products, the quote changed by Halycan to refer to just one ('appliance' rather than appliances) and yes it is “Sponsored" content article! I have raised cases with the advertising standards agency, as well as both the newpapers, asking if they are aware their logos are used alongside the modified quote for sponsored posts. I wait on responses. That discovery was the final nail in Halycan’s coffin.
I emailed the company and asked for a refund after the cheap, unbranded, handwritten box arrived. I had a phone call asking me to reconsider. They said they were a small company, yet another company packaged them badly, and they just fired them. EDIT: story changes below, now their printer broke. Which story is true, who knows? I demanded a statutory refund. I returned the same box (I took photos if you want to see the box). I sent it via Royal Mail Special Delivery (a signed insured service). It was delivered and signed for by Halcyan the next day. Now ask yourself?
1) Has Halycon engaged in false marketing, and misleading quotes?
2)Try and find “peer reviewed journal" evidence from random controlled trials that this device works.
3) Why do “Water softeners” still exist if this device was invented 30 years ago, and works so well?
4) Do you trust this company with £800 of your money?
I apologise for the lengthy review, but I hope you found it useful. Since then, I have sent 3 emails asking why I have not been refunded.
As of 17th October, I have still never been refunded, and in contrast to their reply below, none of my emails have received a response.

Reply from Halcyan Water Conditioners
I was suspicious of Halcyan’s claims before installing their device. Too good to be true? Fact is the changes to water quality are instant, undeniable and considerable.

Reply from Halcyan Water Conditioners
No issues with water marks and we are in a very hard water area. It seems to be working well. No sign of limescale so far (touch wood) 😅
I also had to contact the customer service before delivery and their support was excellent!

Reply from Halcyan Water Conditioners
I would like to start by saying what an absolutely genius product this is, it has really changed my life! To give some background, I moved into our new home in east Hertfordshire in May 2023 and to my dismay was shocked to find out how terribly hard the water is here.
I have previously moved around a lot and lived in London and Essex and can honestly say the water in my new area is the worst I have ever experienced in my life, in fact London is far superior to here.
Now to the point, the water in the bathroom was so awful, I would lose so much hair when washing, it was literally breaking off and became so frizzy and unmanageable like candy floss, in fact most the time I couldn't even brush my hair which led to more breakage. I spent a fortune to install a salt based water softener which was an absolute disaster and ruined my hair even more as it completely removed the minerals and this didn't suit my hair type.
I then had to turn this off due to the damage it was causing. I got in touch with Halcyan and spoke to Chris who was extremely helpful and provided excellent customer service to assist me in purchasing the personal shower unit.
Now I have used the unit today and it has made a remarkable difference to my frazzled hair, it now feels softer and more healthy like it used to feel, I only wish I installed the whole house system in the first place!
I will do this eventually but it just means we have to lift up the floorboards to do so as that is where are incoming water pipe is located.
Now to end this review I will like to say what a fantastic and remarkable product this is, I was feeling so upset and hopeless about my hair and the damage caused by the hard water but I now believe Halcyan has solved all these issues.
Thank you so very much for your amazing product.
Kind regards
Michelle

Reply from Halcyan Water Conditioners
Does what it says on the tin. I live in a hard water area and I noticed a difference immediately the unit was installed by one of the approved plumbers, which is around 6 weeks now. Skin and hair feel softer and less dry. The on/off knob on my shower had calcium deposits making it hard to turn and I am noticing that it glides more easily now. Shower glass is easy to clean. Kettle is clear of deposits. I frequently had to use vinegar in the loo to descale and haven't had to do this since it was installed. I am really pleased and glad I took the decision to install it.

Reply from Halcyan Water Conditioners
Less limescale
More suds in washing machine
Black gone from taps and shower head

Reply from Halcyan Water Conditioners
Really good product for limescale. Very easy to install and does it job as it says. Water quality is better now after we installed this back in Feb 2023.

Reply from Halcyan Water Conditioners
Easy to install, space saving, no maintenance required. Although only installed about 3 months ago, performance so far seems acceptable.

Reply from Halcyan Water Conditioners
I don't often write gushing reviews but here goes... I was skeptical about this device and put off buying it for over a year. Now I couldn't recommend it enough. Surprised at how quickly it got to work and the immediate difference in the water quality. Water tastes nicer; dishes look cleaner; hair feels better; laundry feels softer when it comes out of the machine. Cleaning is no longer a chore. I am so glad we chose Halcyan over the chemical salt softener: it's the perfect solution. We live in a very hard water area. If it can work in our old house, I'm sure it would work anywhere!

Reply from Halcyan Water Conditioners
I can highly recommend Halcyan water conditioners.
I was dubious about the claims made. But after being offered a money back guarantee if I was not satisfied, I decided to go ahead.
And I'm so glad I did.
My kettle doesn't get encrusted anymore.
My brand new shower room shows no signs of hard water stains. Just wipe clean.
Before I bought it I said to Sam, it sounds too good to be true, but I was wrong.
So pleased with this product.

Reply from Halcyan Water Conditioners
I wanted to leave a review for Halcyan, having worked with some of the team recently and found them to be very straightforward and helpful with their advice, clearly explaining what the device can and can’t do. Whilst I don’t have a unit yet, the return on investment looks great so I will be in touch with them again soon!

Reply from Halcyan Water Conditioners
I have no idea how this little product works so well, but it really does! We have had a regular water softener in the past but have moved to a house with less cupboard space and also got fed up with having to buy and store bags of salt. Our plumber installed this on our incoming mains pipe and it’s been amazing. Results were noticeable almost immediately. We live in a hard water area and limescale was a constant issue - not any more! As an added bonus my hair is much less dry and frizzy when washed. My partner notices a slight difference in the taste of the water, but I haven’t noticed this. In all we are extremely happy and wouldn’t hesitate to recommend the Halcyon

Reply from Halcyan Water Conditioners
Excellent customer service!
Great customer support from really well-informed advisors who answered all my questions about the product and how it works.
I highly recommend you speak to Halcyan if you have hard water and limescale problems in your home like I do.

Reply from Halcyan Water Conditioners
I’ve lived most of my adult life in hard water areas (London, South Somerset) so imagine the joy of discovering a small device that might free me from the drudgery of hours of elbow grease, and the expense of gallons of limescale remover. Within a week of our Halcyan being fitted, there are no more threatened encrustations in any part of the bathrooms or kitchen. I imagine residual hidden ones in inaccessible places will also gradually dissolve, and our house plants will be eternally grateful.

Reply from Halcyan Water Conditioners
Trying to avoid the fundamental problem for financial and PR problems is not the solution.
At the time of the post-sales of the replacement of the first coil, a few weeks into using your water conditioner, I contacted you and sent some pictures of the limescale build-up. You skipped the situation, saying that "it is only accumulation of minerals that can easily be clean. It was a natural occurrence due to the mineral in the water."
Since then, we started a picture and video dairy as we advised at the moment would happen from that moment. We will continue our record-keeping of the situation and follow our legal advice regarding what to do with the material. Before purchasing your product, as I mentioned at the consultation stage, the investment in the upgrading project was a consideration, including plumbing, appliances heating systems.
We are not engaging in a "message war" with you. We can see you are very good at it!
Instead, we want to be honest, as any customer will be when a product has been purchased based on misled information.

Reply from Halcyan Water Conditioners
Living in Oxon with super hard water, I am still thrilled every day that I can merely wipe the water marks rather than scrub until my elbows and hands ache plus I will not have to buy limescale remover ever again. It truly is awesome and there are NO ONGOING COSTS unlike most other water conditioners - what you pay for the unit is all there is to pay (that and getting it installed). The customer service has been amazing. The team are very knowledgeable and friendly. Highly recommend to everyone. Plus they gave me a discount as I am a Blue Light Card holder.

Reply from Halcyan Water Conditioners
We purchased a halcyan filter on the recommendation of our builders, during renovation works. Living in a hard water area, we were initially sceptical whether a short segment of piping could really perform as well as a water softener unit. It only took a few weeks of using it to show how wrong we were! There was noticeable less line scale buildup on our kettle, and when running a bath for the kids we needed far less solution to get a good amount of bubbles. One surprising effect was how much it improved my dry skin - overall we were so impressed with the product quality that we are using the same system when we finish renovating our new house!

Reply from Halcyan Water Conditioners
We bought a Halcyan water condition for our house which has been refurbished with new pipes and water system. The plumber installed it about 8 months ago and we have been in the house for about 4 months. We are extremely pleased with the product which has stopped the build-up of limescale throughout the house. We are particularly happy as we have black taps which are ruined by limescale. The company was honest with the powder that is formed instead of limescale, and as promised this simply wipes away.
The customer service was great with knowledgeable and helpful advisors. The product was delivered quickly. Our plumber had no problem fitting it into the pipe system.
Fully recommend the system for improving the problem of limescale in the house.

Reply from Halcyan Water Conditioners
I have written a negative feedback and the company never check with me and said their engineer has called me but can't reach me out. I have all email communication record to proof you did not commit to your failures. In terms of effort, I have paid extra 200 pounds to change my piles to fit your conditioners and keep record videos and take photos to show the lime scale on my kettle through the year. But in my email record, your team has only let me know he has forwarded the information to the engineer for checking and that's all. I am happy to share all my email communication if necessary.

Reply from Halcyan Water Conditioners
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