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Crafted for performance as well as style, the Aluna bifold system features marine-grade, PAS 24 compliant aluminium as standard. With Part L compliant U-values as low as 1.1 W/m²K and a DER rating of B when paired with triple glazing, it delivers exceptional efficiency and security you can rely on.

Ultra-slim profiles reduce visible framework to a minimum, with sightlines of just 107mm from frame to sash. The result is expansive glazing that invites natural light to pour in, creating bright, open spaces with a truly premium feel.

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Horizon Windows and Doors Limited
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John N.
20:53 14 Mar 26
Great job and friendly customer service - excellent job!
Ayman
11:55 11 Mar 26
Great service, bought windows and doors for our garden room. Amazing quality 👍 thanks so much!
Steven W.
23:04 02 Mar 26
Great company, we used this company to provide us windows for our extension, easy company to deal with will use again
Dmytro T.
11:57 28 Feb 26
Very happy with our windows
P Y
12:26 27 Feb 26
Great products and great customer service and support. 👍
Dl D.
22:38 26 Feb 26
Amazing service, speedy delivery and super helpful. Great company to do business with.
Hana-Louise B.
21:01 26 Feb 26
Such a seamless process with this company, there communication has been amazing! Have received my windows and my bifold doors of which the quality has been outstanding. Will most definitely use them again and highly recommended.
Hazel B.
20:14 25 Feb 26
Excellent bi-fold doors. Very smart-looking and no problems with them 2 years on. Would recommend 👍🏼
Aaron C.
19:38 25 Feb 26
We bought some sliding doors for my garden room. Very pleased with the price and service. Will definitely use these guys again!
jason K.
19:04 25 Feb 26
From beginning to end of the process josh and his team have been amazing. Their knowledge and service is excellent. The quality of the product is fabulous. Highly recommend. A family friendly business with high standards. Many thanks
Mark T.
18:56 25 Feb 26
We got ourselves some new windows from Horizon. Couldn’t be happier with them, and the speed with which they were made and installed. Tidy workplace too, so didn’t have to worry about standing on anything!
Jordan H.
10:15 25 Feb 26
Couldn’t be happier with the extension & kitchen fit. Professional and clear from the beginning whilst keeping me updated with the process. Happily recommend.
Erin
23:03 08 Feb 26
We had a set of bifolding doors installed by the team at Horizon Windows and Doors. The quality is excellent and Josh's advice has been invaluable - we are really happy with the end result. The team were friendly, professional and tidy and we would highly recommend them!
Emine H.
09:55 07 Feb 26
We recently had our windows replaced by Horizon Windows and Doors and the whole experience was excellent from start to finish. The team talked us through the options clearly without any pressure, which we really appreciated.
Installation was smooth and tidy — the fitters worked efficiently and left everything clean at the end of each day. The quality of the windows feel solid, and we’ve already noticed a difference in warmth and noise reduction at home.
Communication throughout the process was clear and responsive, and any small questions we had were dealt with quickly. Overall, we’re really happy with the results and would definitely recommend Horizon Windows and Doors to anyone looking for reliable service and high-quality products.

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