We required a repair to a Rationel window door. Rationel refuse to accept any responsibility for their contracted servicing company. The company only accepts full bank transfer payment up front.... Leggi di più
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Our self build completed 5 years ago uses Rationel windows and doors. We have two pairs of ‘French windows’ both started to leak resulting in pools of water on the steps inside the rooms, this a coupl... Leggi di più
I emailed Patsy from Rationel 2 days ago about a rubber seal on the bottom of my garden doors that was failing! The rubber seal arrived in post this morning, that's great customer service no quibble... Leggi di più
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We installed Rationel Domus timber windows, patio doors and front door (22 items in total) throughout our house 15 years ago and they've been brilliant. Look fantastic, thermally really effective on... Leggi di più
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Dettagli dell'azienda
Scritti dall'azienda
Rationel Windows - Bespoke Windows and Doors. Rationel bespoke windows and doors are available in timber or timber clad with aluminium.
Informazioni di contatto
The Forum, Ground Floor, Lancaster Way, Ermine Business Park, PE29 6XU, Huntingdon, Regno Unito
- 01480 759 511
- rationel.co.uk
3,7
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Our self build completed 5 years ago…
Our self build completed 5 years ago uses Rationel windows and doors. We have two pairs of ‘French windows’ both started to leak resulting in pools of water on the steps inside the rooms, this a couple of months after the warrantee expired. I had posted a critical review of their customer service but have now deleted it as Rationel/Dovista have now sent fitters from installers MLO who have rectified the problem snd even improved the original installation without charge. As self builders with heat pump, heavy insulation and airtightness we chose rationel because the timber frame gives superior thermal efficiency and the exterior aluminium powder coating reduced need for maintenance.
13 febbraio 2026
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Aftersales terrible
We required a repair to a Rationel window door.
Rationel refuse to accept any responsibility for their contracted servicing company.
The company only accepts full bank transfer payment up front.
We have been charged £800 + vat to fit a complete new door.
The 1hr of fitting has damaged the door and the company doesn't return to fix or proactively engage.
If I had known the aftersales issues I would never have spent so much on specialist doors.
16 gennaio 2026
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Risposta di Rationel Windows
We’re sorry to read about your experience and understand how frustrating this situation must be, particularly where the repair and follow-up service have not met expectations.
While our approved service partners operate independently, they are expected to deliver a high standard of workmanship and customer care. It is therefore concerning to hear about the issues you’ve described following the installation, as well as the lack of follow-up.
We would very much like the opportunity to review this in more detail and help work towards a resolution. Please contact Chris Newton, Service Manager, directly with your order details and any supporting information or photographs, and he will look into this matter personally.
Email: cjn@dovista.com
Tel: +44 1869 353520
Thank you for bringing this to our attention.
seamless replacement
got in contact asking about the process for a repair and got a replacement very quickly!
18 ottobre 2025
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Risposta di Rationel Windows
Thank you for your feedback.
We’re pleased to hear that the process was clear and that your replacement was arranged quickly. Providing efficient and straightforward support is something we always strive for.
Thank you again for choosing Rationel.
Outstanding customer service.…
I emailed Patsy from Rationel 2 days ago about a rubber seal on the bottom of my garden doors that was failing!
The rubber seal arrived in post this morning, that's great customer service no quibble just straight in the post.
It pays in the long term to buy the best.Thanks so much to Patsy he could teach alot of other companies a thing or two about customer service.
8 dicembre 2025
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Risposta di Rationel Windows
Thank you for taking the time to share your feedback.
We’re delighted to hear that Patsy was able to help so quickly and efficiently, and that the replacement seal reached you without delay. Providing straightforward, no-quibble support is exactly the level of service we aim to deliver, so it’s great to see this reflected in your experience.
We’ll be sure to pass your kind words on to Patsy, and thank you again for choosing Rationel and for your recommendation.
So much nicer to work with nice people
So much nicer to work with nice people! Miles has been great to deal with throughout the process of getting my Rationel glass replaced. Prompt response to emails, turned up when he said he would, solved the problem, and even cleaned the glass after installation. Thank you!
8 dicembre 2025
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Risposta di Rationel Windows
Thank you very much for your kind feedback.
We’re delighted to hear that Miles provided such a positive experience and supported you so well throughout the glass replacement process. Prompt communication, reliability, and attention to detail are all things we take great pride in, so it’s wonderful to see this reflected in your comments.
We’ll be sure to pass your thanks on to Miles, and thank you again for taking the time to share your experience with Rationel.
We bought a house with Rationel alu…
We bought a house with Rationel alu clad windows which were 18 years old . One would think if you read their advertising stating 86 years life expectancy that at 18 year old they would be fine. Think again folks. The more I dig the more I find these windows have built in obsolescence . Thin paint on wood , cheap screws holding on alu cladding that have rusted as not stainless, Chinese hardware all in all hopeless and Rationel won’t sell us spare parts. Now faced with 50 k bill to replace with a decent quality. Rationel so unhelpful.
Update 5 Jan 26 Thank you very much for your update and reply by the way… it’s taking you two months to even reply. Chris newtons mobile has been provided before .. the number never gets answered and left message never any return call. Probably a mobile in the guys sock drawer . You lot talk the talk in your brochures and I’ve even tried talking to a guy at an exhibition who promised me he would “ personally sort it out “ but absolutely no back up. Rationel used to be a good product and good company but would never go near your product again. The more I dig into reading other peoples reviews on forums so many people have had the same experience you avoid warranty claims like the plague and you just don’t want to know. The fact it has taken you since the 5th of November to the 5th of January over 2 months to even reply just says it all. We have found a suitable company now who provide proper skandinavian windows rather than the poor quality polish and Latvian made products that you sell. It’s about as Danish as Bolton . Very misleading marketing don’t touch them Folks
5 novembre 2025
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Risposta di Rationel Windows
We’re sorry to read about your experience and understand how disappointing it must be to encounter issues with windows, particularly when expectations around longevity are high.
Rationel products are designed and tested to deliver long-term performance when correctly specified, installed, and maintained. However, the service life of windows can be influenced by a number of factors, including exposure, environment, maintenance history, and the availability of components over time. For products that are 18 years old, it is not always possible to supply spare parts, as specifications and hardware do evolve.
That said, we regret that you feel unsupported and would welcome the opportunity to review your concerns in more detail. Please contact Chris Newton, Service Manager, directly with any photographs and information you have relating to the windows, and he will be happy to look into the matter and advise on any possible options.
Email: cjn@dovista.com
Tel: +44 1869 353520
Thank you for taking the time to share your feedback.
Dangerous issue and no response
While opening one of our Rationel windows the track on the side hinge went beyond the extension limit stopper and the window effectively fell out only being stopped by the hinge arms. Had one of our small children opened the window on this occasion they could have been badly hurt.
My husband tried to get these sliding tracks back into their track but could not do it himself.
The only way to make the window safe and secure was to remove the hinge and push the window into a closed position and lock it. This meant that throughout the summer while waiting for rationale to come and see to the window we couldn’t open it.
We asked Rationel to please come out and fix urgently and over a month later we still have not received a reply despite multiple follow ups. Not good enough.
26 agosto 2025
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Risposta di Rationel Windows
Thank you for sharing your experience. The issue you describe is a serious one, and we want to ensure it’s addressed quickly. Please contact our Service Manager, Chris Newton, at cjn@dovista.com
with your order/reference number, installation address, and photos of the hinge/track. This will allow us to arrange the correct support as a priority.
We understand the frustration caused by the delay and will work to resolve this matter without further hold-up.
Rationel Customer Care
(UK)
Fast, Friendly, and Exceptionally Helpful
Emilia at DOVISTA provided outstanding support from start to finish—clear communication, quick responses, and a real effort to expedite delivery before my holiday. She guided me through the order, payment, and installation steps with patience and professionalism. A seamless experience—thank you!
21 luglio 2025
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Risposta di Rationel Windows
Thank you for taking the time to share your feedback. We’re delighted to hear that Emilia made the process smooth and straightforward, and that her support helped you get everything arranged in time for your holiday. Clear communication and efficient service are exactly what we aim to deliver, so it’s great to know this was your experience.
We’ll make sure your kind words are passed on to Emilia and the wider team.
Rationel Customer Care
(UK)
The window was fixed to an extremely…
The window was fixed to an extremely high standard. Miles and the team were really communicative and the whole process from start to finish was very easy and efficient. I highly recommend Miles and the team.
9 luglio 2025
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Risposta di Rationel Windows
Thank you so much for your kind words and for taking the time to leave us a review. We're delighted to hear that Miles and the team provided such a high standard of service and kept communication clear and consistent throughout. Making the process easy and efficient for our customers is always a top priority, so it's great to know that this was your experience. We truly appreciate your recommendation!
— The Rationel Team
Miles and Joe from MLO Installations…
Miles and Joe from MLO Installations were excellent.
Good communication, on time, high quality work and plenty of helpful advice.
30 giugno 2025
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Risposta di Rationel Windows
Thank you for your lovely feedback! We're so pleased to hear that Miles and Joe from MLO Installations delivered excellent service with clear communication and high-quality workmanship. It’s great to know they were punctual and provided helpful advice throughout the process. We’ll be sure to pass on your kind words to them!
— The Rationel Team
Needed a spare key for a lock that is…
Needed a spare key for a lock that is 20+ years old. Local locksmith couldn't source a blank but Dovista/ Rationel sent me 2 blanks straight away - and they fit the old lock! Very pleased with their aftersales service.
9 giugno 2025
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Risposta di Rationel Windows
Thank you for your wonderful feedback! We're so glad we could help you with replacement key blanks for your 20+ year-old lock. It's great to hear they fit perfectly and that you’re pleased with our aftersales service — we always aim to support our customers long after installation. Thanks again for sharing your experience!
Replacing Trickle Vent
I have very smart Rationel windows in my holiday cottage. Recently one of the guests broke the Trickle Vent cover off. I didn't quite know where to start so I decided to ring the office not expecting to be helped in such an amazing way by 'Lesley'. I was so relieved to have her help in deciding which vent it was, how to fit it, deciding at the last minute where to send the replacement PLUS free of charge. I cannot praise Lesley enough. If only replacing a small thing was always made so easy. Everyone needs a 'Lesley'!
19 maggio 2025
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Risposta di Rationel Windows
Thank you so much for your kind words! We're thrilled to hear that Lesley was able to provide such outstanding support — we completely agree that everyone needs a Lesley! It's always our aim to make things as straightforward as possible, even when it comes to the small details. We're so glad she could help you identify and replace the Trickle Vent cover quickly and easily. Your feedback means a lot, and we’ll be sure to share it with Lesley and the team.
Installation of new Rationel windows - MLO installers
We got Rationel Windows and recently one of them was broken by some vandalism act.
When I contacted MLO installers about the replacement, they were very professional and responsive in terms of the type of work and timelines.
Once agreed on the installation day, the work was executed perfectly. These were heavy 114kg windows for a 1st floor so not at all easy.
Thanks to Miles and the team, now we perfect windows again.
Highly recommended
23 maggio 2025
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Risposta di Rationel Windows
Thank you for taking the time to leave such a thoughtful review. We're sorry to hear about the circumstances that led to the replacement, but we're delighted that Miles and the MLO Installations team were able to support you so professionally. Replacing large, heavy windows — especially on an upper floor — is no small task, so it's great to hear the installation was handled smoothly and to a high standard. We’re so pleased you’re happy with the results and really appreciate the recommendation!
Very impressed with Joe from MLO…
Very impressed with Joe from MLO Installations, a company working on behalf of Rationel Windows. He replaced our broken handle and adjusted the window to make it smoother, then asked if any other windows needed adjustment and got our big sliding window working much more smoothly.
22 maggio 2025
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Risposta di Rationel Windows
Thank you for your kind words! We’re so pleased to hear that Joe from MLO Installations delivered such excellent service. Proactively fixing the original issue and going the extra mile to adjust your sliding window really speaks to the level of care we strive for. We’ll make sure your feedback is shared with Joe and the team — it’s always great to hear when our partners leave such a positive impression.
Fout stars but
Great quality on the whole but doors have floppy handles and being told that is normal
16 maggio 2025
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Risposta di Rationel Windows
Thank you for your feedback and for highlighting the overall quality — we're really pleased to hear you're happy with your Rationel products. We're sorry to hear about your concern regarding the door handles. Some handle movement can be within the normal operating tolerance, but we absolutely understand how this might feel unexpected. If you'd like us to take another look or offer further clarification, please don't hesitate to get in touch — we're always here to help.
Rationel doors and windows Service visit.
Rationel doors and windows were fitted to my house in Norfolk by the house-builder six years ago. The products are very good and provide the necessary draught and thermal insulation to compliment our air source heat-pump underfloor heating. A couple of niggles developed with two of the external doors over the last couple of years and I requested a service visit to resolve these minor problems and to check and service all four external doors. This was done by a pair of very competent, capable and affable service technicians who also conducted a quick check on all 12 Rationel windows in the house. You are never sure what level of competence you will get when technicians come to your house, I just wish they could all be as good as these two were.
9 maggio 2025
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Risposta di Rationel Windows
Thank you for sharing such detailed and thoughtful feedback. It’s great to hear that your Rationel doors and windows have performed well over the years, complementing your energy-efficient setup. We're especially pleased that our service technicians made such a positive impression — delivering not only skilled work but also a friendly and reassuring experience. We’ll be sure to pass on your praise to the team. Thank you again for your trust and kind words!
Avoid. Time wasters and dishonest.
Biggest time wasting, dishonest company I've ever dealt with. Don't take my word alone for it. Check out their Google reviews. There are alternative companies that offer the same product from the parent company that will treat you professionally.
12 marzo 2025
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Risposta di Rationel Windows
We’re sorry to hear about your experience. At Rationel, we take customer feedback seriously and strive to assist wherever possible.
If you still require further support, please contact our Service Manager, Chris Newton, on +44 1869 353520 or at cjn@dovista.com. He will be happy to discuss your concerns and explore how we can assist you.
High quality windows that we’ve had in…
High quality windows that we’ve had in our house for a number of years now. I recently needed to contact customer services. They replied very quickly and were extremely helpful. I recommend them as a company.
14 febbraio 2025
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I had to have a window replaced
I had to have a window replaced. I found dealing with Carey was great. Professional and understanding in this day and age its refreshing to be speaking to a nice person.
4 novembre 2024
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Absolutely no interest in after sales
Absolutely no interest in after sales, unable to supply replacement door seals, frame beads and has no service department. Look elsewhere if your looking for value for money
30 dicembre 2023
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Risposta di Rationel Windows
We’re sorry to hear about your experience with our after-sales support. At Rationel, we take customer feedback seriously and strive to assist wherever possible.
If you still require further support, please contact our Service Manager, Chris Newton, at 07717 704459 or cjn@dovista.com. He will be happy to discuss your concerns and explore how we can assist you.
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