What our customers say

At Rationel, we’re not just selling products; we’re building relationships, fostering dreams, and enhancing the lives of Irish homeowners. So customer satisfaction isn’t just a goal, it’s our driving force. Our sales consultants take the time to understand the unique needs of each homeowner, ensuring that every window installation is not just a project, but a step towards creating dream homes.

But don’t just take our word for it – see what our customers say.

Rationel, Cork recently supplied and fitted triple glazed alu clad windows and a door to our new build. Im really pleased with how they look, the communication during the design and ordering process was excellent and the two guys that fitted the windows were very professional and on the ball. Top marks all round.
Shane O Sullivan
It took us a couple of trips to the showrooms in Cork and many emails to finally decide on colours and style of the windows. Aoife was always more than helpful and patient in advising and helping us to make a final decision. Thanks to Tony and Brendan for the final design of the replacement arched windows. We had the windows and front door fitted the beginning of January, as promised, and hats off to the fitters T.J, Thomas and Mark. They were a pleasure to have around. Fast and professional with attention to detail. Delighted with the final job.
B Clancy
Just wanted to say THANK YOU. I may have taken forever to choose the windows and dragged my feet and haggled and even changed my mind, but I am now very very happy with them….as are the swallows.You’ve each been really great to work with and I really am grateful. Shane, you and your team of installers were so calm and careful it was tangible!  Everyone who has seen the windows so far has been very impressed with them. My genuine thanks to each of you for your patience and attention to detail.
Sarah Wall
The saying goes, you get what you pay for, and Rationel windows are no exception. This is a premium product and while alu -clad may be more expensive than standard windows and doors, any doubts I had were pushed quickly aside when I inspected the windows that they replaced. I was shocked at the difference in quality.

The first storm of the year, I sat working in a cosy kitchen with not a draft to be felt … previously I might as well have been sitting in the yard with my laptop, blowing in the wind. In these times, with rising heating costs I know that they will pay for themselves. My biggest regret was that I didn’t do it sooner.

Noreen Morris
“I highly recommend Rationel Windows. The windows are of a very high quality, the design is clean and simple. We visited the Dublin show room which had examples of all window and door styles, The staff were very helpful and we came away knowing exactly what we wanted. Aaron managed the rest of the project very efficiently, he was very knowledgeable about how to marry the windows with the renovation of an old traditional stone building. The installation (ahead of schedule) was very professional. We are delighted with the result and have no hesitation in recommending Arron and all the team. ”
Mary Rodgers Donegal
“Tony and Aoife were incredibly patient while I dithered over colour and style and asked a million questions, nothing was too much for them. TJ and his crew arrived as scheduled, were efficient and in replacing the old windows most importantly didn’t leave a mess. A special thanks to Brendan for all his hard work from the point of order to installation, I was kept fully informed of timelines and they arrived as scheduled.”
Noreen Morris
“I just wanted to say thank you very much for all your help with the windows and a huge thank you to the Dream Team! you sent down.  The lads were just brilliant. They were so careful in their work and so friendly to deal with. We couldn’t have asked for better. Your advice re openings and doors etc was spot on. We are delighted with the windows and the fitting and the lads were as sound as they come!”
Elaine Foley