Rationel Windows

Rationel Windows Rationel Scandinavian windows bring together daylight, beauty and warmth to truly amplify your happy home.

Highly energy-efficient as standard, all of our windows and doors are made entirely bespoke, to create something that’s perfectly suited to you. Manufacturers of high quality, low energy Danish timber and aluminum clad timber composite windows and doors. Experienced in PassivHaus, we achieve Uw-values as low as 0.7W/m2K

For a quote please call 01480 759 511 or email [email protected]

We like to keep things simple here at Rationel. All our windows and doors come with architect-designed, matt chrome ID h...
08/10/2025

We like to keep things simple here at Rationel. All our windows and doors come with architect-designed, matt chrome ID handles in standard and child lock options. Plus, outward opening windows are fitted with a receiver plate for safe and secure ventilation. Easy. Breezy

Rationel: Solid and beautiful windows and doors

👉 https://rationel.co.uk/guidance/handles/

We’re excited to be exhibiting at the Homebuilding & Renovating Show, ExCeL London, 19–21 September 2025.Visit Rationel ...
15/09/2025

We’re excited to be exhibiting at the Homebuilding & Renovating Show, ExCeL London, 19–21 September 2025.

Visit Rationel on Stand i133 and discover how our slim frame composite windows and doors can transform your home with more daylight, outstanding energy performance, and timeless Scandinavian design.

Book your free tickets here: https://bit.ly/3HH1KgG
Learn more about Rationel: rationel.co.uk/how-to-buy/

They did it! 🌄💪On 5th September, our amazing colleagues took on the Yorkshire Three Peaks Challenge — climbing up to 24 ...
09/09/2025

They did it! 🌄💪

On 5th September, our amazing colleagues took on the Yorkshire Three Peaks Challenge — climbing up to 24 miles and 3 peaks — all to raise money for the National Autistic Society.

Some tackled one or two peaks, others took on all three, but every single person gave it their all and made us proud. 👏

A massive shoutout to our heroes of the day: Alison, Angela, Charlotte, Dan, James, Lesley, Luke, Mat, Max, Neil, Sophie, Steve, Tom K, and Tom K — plus Nikki and Jo for being the best support team!

This challenge was tough, but together they made it to the top! 🏔️

https://news.velfac.co.uk/domestic/yorkshire-3-peaks-challenge

05/09/2025

On site at our Wadhurst self-build project, carefully taping up the windows before the brickwork begins, a crucial step in ensuring the airtightness of the build👷‍♂️✨

When it comes to low-energy homes, airtightness is non-negotiable. Even the smallest gaps around windows and doors can compromise performance by letting warm air escape and cold air sneak in. That’s why we’re working with Rationel Windows , whose triple-glazed timber windows are designed and tested to the highest airtightness standards.

It’s all in the details, and getting this right now means the building will perform as it should for decades to come.

Rationel’s outward-opening casement doors offer a streamlined alternative to standard patio doors. The slim construction...
04/09/2025

Rationel’s outward-opening casement doors offer a streamlined alternative to standard patio doors. The slim construction means maximum light levels, an inbuilt friction brake allows you to secure the doors in any position and there’s a minimum three-point locking bolt for added peace of mind. What’s more, they can be designed for either modern builds or more traditional properties 😊👍

Rationel: opening up with daylight



https://rationel.co.uk/doors/casement-doors/

Midsummer meltdown? Rationel sun-shielding Solar tinted glazing helps prevent overheating by reducing the amount of ligh...
27/08/2025

Midsummer meltdown? Rationel sun-shielding Solar tinted glazing helps prevent overheating by reducing the amount of light and heat coming into a home.
• Prevents glare from the sun and unwanted reflections
• Ideal for south or west-facing rooms and conservatories
• Reduces the need for artificial cooling, cutting energy bills
• Helps create a comfortable indoor environment
• Almost identical in colour to standard glass
Rationel: save money – and energy – with sustainable windows 🌞😎



https://rationel.co.uk/guidance/glazing-options/solar/

All Rationel windows and doors carry the Indoor Climate Label, proof that our products contribute to a healthy, comforta...
20/08/2025

All Rationel windows and doors carry the Indoor Climate Label, proof that our products contribute to a healthy, comfortable home. Daylight is essential for wellbeing and our slim frames maximise light transmittance, boosting mood and the ability to concentrate. We also offer acoustic control glass to reduce the levels of perceived noise for people living in busy cities. We know. We think of everything 😊
Rationel: daylight = wellbeing



https://rationel.co.uk/guidance/sustainability/people/

Alu-clad windows from Rationel combine the warmth of timber with the durability of aluminium.✅ Natural wood on the insid...
13/08/2025

Alu-clad windows from Rationel combine the warmth of timber with the durability of aluminium.

✅ Natural wood on the inside
✅ Weather shield of aluminium on the outside
✅ Minimal maintenance
✅ Great weather (and burglar) protection
✅ Last over 20 years longer than all-timber windows
✅ 2 frame designs to choose from
✅ Double or triple-glazing
Rationel: passing on solid Danish design solutions 😉



https://rationel.co.uk/guidance/alu-clad-windows/

Your home will thank you for Rationel’s FORMA/FORMAPLUS range. Classic, traditional style timber/aluminium windows and d...
06/08/2025

Your home will thank you for Rationel’s FORMA/FORMAPLUS range. Classic, traditional style timber/aluminium windows and doors in a wide choice of finishes and colours. Bedding in beautifully at Long Cottage in Shilton, Oxfordshire as you can see 😉🏡

Rationel: windows with a long lifespan that look nice too



https://rationel.co.uk/guidance/forma-formaplus/

Unlike the side-hung window, Rationel’s side-guided version has an adjustable sash that moves towards the middle when op...
30/07/2025

Unlike the side-hung window, Rationel’s side-guided version has an adjustable sash that moves towards the middle when opened. This means:
🗹 Minimalist good looks with no visible external hinges
🗹 Both sides of the glass are easy to clean from the inside
🗹 Simple, seamless operation
🗹 Excellent ventilation
You see how we spoil you? 😊😉

Rationel: we listen, learn and get better every day



https://rationel.co.uk/windows/side-guided-windows/

Why choose Rationel windows? Well let’s see… 1. Iconic Scandinavian design 2. Sustainably sourced timber 3. Exceptional ...
02/07/2025

Why choose Rationel windows? Well let’s see…
1. Iconic Scandinavian design
2. Sustainably sourced timber
3. Exceptional craftsmanship
4. High performance thermal efficiency
5. Built to last for decades - and to be enjoyed for generations
6. Build It Live 2024 Best Casement Window Award 👍

Rationel: framing our everyday lives

https://rationel.co.uk/windows/

Address

The Forum, Ermine Business Park, Lancaster Way
Huntingdon
PE296XU

Opening Hours

Monday 9am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+441480759511

Website

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