Rationel Windows

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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]

Rationel is becoming part of VELFAC.Rationel products are now joining the VELFAC range, bringing our window and door sol...
15/09/2026

Rationel is becoming part of VELFAC.

Rationel products are now joining the VELFAC range, bringing our window and door solutions together under one trusted brand.

Although the Rationel name is being phased out in the UK, the products, quality and expertise customers know will continue as part of VELFAC. Existing Rationel customers will also continue to receive the support they need.

Find out more about the change: https://velfac.co.uk/rationel/

Improve access to a balcony, garden or outside seating area with a set of Rationel patio doors. Choose inward or outward...
09/03/2026

Improve access to a balcony, garden or outside seating area with a set of Rationel patio doors. Choose inward or outward-opening in one of our two styles: AURA/PLUS for contemporary clean lines or FORMA/PLUS for classic detailing. There you go, you see. All your ins-and-outs sorted! ✅
Rationel: Going the extra mile for bespoke solutions👍

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

Feel restricted to white and black when it comes to windows and doors? Don’t be! Here at Rationel we believe being more ...
02/03/2026

Feel restricted to white and black when it comes to windows and doors? Don’t be! Here at Rationel we believe being more colourful adds architectural impact to your home. So, pick away from all the RAL Classic standard shades (and the non-standard ones too!), plus 6 additional Granite options for our aluminium-clad timber ranges. Get more colour in your life! Grab a swatch! 🏡🌈
Rationel: Framing our everyday lives🌞

https://rationel.co.uk/guidance/colours/

With a height and width of up to 3 metres, Rationel fixed light windows bring expansive, uninterrupted runs of glazing t...
23/02/2026

With a height and width of up to 3 metres, Rationel fixed light windows bring expansive, uninterrupted runs of glazing to homes, brightening your rooms and capturing views. Ideal for maximum internal light and solar heat, they’re what we like to call our grand windows of opportunity! Ready to transform your space? See what a fixed light window can do for you! 😉🪟☀️
Rationel: Your experts in daylight

https://rationel.co.uk/windows/fixed-light-windows/

Planning a refurb is the perfect winter pastime, but with spring finally in our sights, now’s the time for action! Add v...
16/02/2026

Planning a refurb is the perfect winter pastime, but with spring finally in our sights, now’s the time for action! Add value and style to your home with Rationel – we’ve been manufacturing our windows and doors with a passion for craftsmanship since 1954. What better way to lock in those energy savings before next winter and get an installation booked? Have a pootle around our website and discover our AURA and FORMA ranges. You’re most welcome 😊
Rationel: Release your home’s potential

https://rationel.co.uk/

We’re excited to be exhibiting at the National Self Build & Renovation Show at the The National Self Build & Renovation ...
23/01/2026

We’re excited to be exhibiting at the National Self Build & Renovation Show at the The National Self Build & Renovation Centre, from 30 January – 1 February 2026.

Visit us to discover how Rationel’s timber and timber-aluminium windows and doors can elevate your self-build or renovation project — combining Scandinavian design with outstanding performance.

Don’t miss Business Manager Max Bradshaw, who will be speaking on Friday with his talk:
“Windows and Doors Decoded: Make the Right Choice for You”

An insightful session designed to help homeowners and professionals make confident, informed decisions.

We hope to see you there.

Choose carefully, and the right windows and doors can improve the sustainability of your renovation or new build - and y...
07/01/2026

Choose carefully, and the right windows and doors can improve the sustainability of your renovation or new build - and your life at home afterwards.
Rationel windows and doors:
🗹 are designed to minimise environmental impact
🗹 are crafted with a focus on quality, long operational lifetime and reduced carbon footprint
🗹 feature FSC®-certified wood
🗹 use materials 93% of which can be recycled
🗹 are Indoor Climate Label certified
🗹 undergo extensive durability testing

Go on, download a brochure. No charge🌎

Rationel: Save money – and energy – with sustainable windows 💷♻️

https://rationel.co.uk/wp-content/uploads/sites/2/2025/01/2025-01-03-RationelBrochure-Webversion.pdf

New year, new project? Check out architect-recommended Rationel windows and doors. To keep things nice and simple, they ...
01/01/2026

New year, new project? Check out architect-recommended Rationel windows and doors. To keep things nice and simple, they come in just two styles: AURA/PLUS for modern new-builds and FORMA/PLUS for period properties. Browse our case stories to see how our products have transformed homes from Edinburgh to Essex. You’re most welcome! And, oh, Happy New Year!😉

Rationel: Helping everyone get more out of home🏡

https://rationel.co.uk/case-stories/

Feeling all warm and cosy this winter? We’re proud as peacocks that our windows and doors are helping customers maximise...
23/12/2025

Feeling all warm and cosy this winter? We’re proud as peacocks that our windows and doors are helping customers maximise the potential of their homes. Wishing one and all a very happy, snugly holiday season 🦚🎄

Rationel: Home is where the heart is🏡❤️

https://rationel.co.uk/

Introducing Rationel timber-framed, alu-clad windows:• High quality softwood sourced from sustainable northern European ...
17/12/2025

Introducing Rationel timber-framed, alu-clad windows:

• High quality softwood sourced from sustainable northern European forests
• Aluminium profiles that protect the timber and extend the lifetime of the windows
• Great weather and burglar protection
• Low maintenance - no repainting needed!
• Available in multiple colours, shapes, finishes and glass options to suit any property - new or old

You see how we spoil you?😉

Rationel: Your experts in daylight🌞

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