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Rationel sliding patio doors feature Scandinavian design and are crafted from timber and timber/aluminium composites for durability and energy efficiency. These doors offer excellent thermal insulation and security, and are designed for smooth operation, maximising natural light and space efficiency. Available in various configurations and a broad range of colours, Rationel sliding patio doors can be tailored to fit both contemporary and traditional architectural styles.
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Rationel entrance doors combine Scandinavian design with robust construction, using timber and timber/aluminium composites for enhanced durability and energy efficiency. These doors offer strong thermal insulation and security features, and are available in various styles and configurations to complement both modern and traditional architectural designs. Rationel entrance doors are customizable and come in a wide selection of colours to meet specific aesthetic and functional needs.
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Rationel windows are crafted with Scandinavian precision, utilising timber and timber/aluminium composites for durability and energy efficiency. These windows meet high environmental standards, providing strong thermal insulation and security features. Available in diverse styles and configurations, Rationel windows cater to both contemporary and traditional architectural preferences, offering customisable options to suit specific design requirements.
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Rationel is a leading manufacturer known for its Scandinavian-designed windows and doors, crafted from timber and timber/aluminium composites. The brand prioritises energy efficiency, durability, and strict adherence to high environmental standards, making Rationel a top choice for windows and doors in West Sussex.
Rationel products cater to both modern and traditional architectural styles, with versatile designs and a wide selection of colours to match any home.
The Rationel® product range
Rationel delivers high-quality, energy-efficient timber windows and doors, blending durable Scandinavian craftsmanship with timeless design.
All Rationel products are proudly manufactured in Denmark.
Rationel products are manufactured using timber and timber/aluminium composites, ensuring longevity and superior thermal performance.
Available colours include:
- Anthracite Grey
- Coal Black
- Granite Grey
- Pebble Grey
- Zinc Yellow
- Antique Red
- Antique Green
- Olive Green
- Silver Grey
- Light Blue
- Sea Blue
- Mahogany
- Walnut
- Nut Tree
- Oregon Pine
- 150+ RAL colours
- Windows
- Entrance
- Sliding
Rationel provides a 5-year guarantee on all products, giving customers peace of mind and confidence in the quality and durability of their investment.
Brand Compare
Use the arrows below to scroll through the brands for a side-by-side view.
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The Origin Aluminium Window collection is renowned for its array of beautiful, elegant, modern, or traditional options, making it ideal for any property style in the UK. Offering a palette of 150 RAL colours combined with the highest quality premium-grade aluminium, these bespoke Origin windows seamlessly complement various home types, including new builds, unconventional structures, period-style cottages, or existing constructions. As proud Origin Window suppliers, individuals can customise their living space to perfectly align with their preferences, allowing natural light to flood their homes.
Origin offers industry-leading manufacturing times, with some products available in less than 5 working days when needed.
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The Origin Window collection consists of two systems – the OW-70 and the OW-80. Both feature stunning design and an exceptional finish – the main difference is the width of the window sightlines. OW-70 range offers the thinnest sightlines for more natural light and less window profile. However, the OW-80 range offers more configurations, large sizes and offers more customisation options.
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The Origin Aluminium Front Door is a precision-driven, expertly engineered object of beauty. From single front doors and French doors that can be used in a home or garage space, through to grand entranceways with side flags and transom windows, our range of front doors are made from exclusive premium grade aluminium, enabling you to create a personal statement with ease; because first impressions matter.
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Origin’s sliding door range delivers first-in-class design and provides the most spectacular aluminium finish for any building project. Available in four different slim sightlines across two different sliding door systems – the Origin Artisan Slider and the Origin Patio Slider. We have some of the slimmest aluminium sliding doors on the market, allowing for some of the largest glass expanses to be achieved to offer uninterrupted views whilst not compromising on quality or thermal performance. Both systems are modern, boast industry leading security features and are architecturally striking variations on the traditional patio door system
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Whether you have a period home, new build, unconventional property or quaint cottage, there’s a bi-fold which will complement your home and allow you to enjoy it in a completely new way.
Created bespoke to ensure you can make the most of your space, the Origin bi-fold Collections range from one to twelve door sets. Individual doors can be manufactured as narrow as 400mm, as wide as 1,200mm and as tall as 3,025mm. You can choose how they open and close – whether they fold in or out, and how they slide – to meet your exact needs.
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The Origin Internal French Door provides even more flexibility than the Single Door and is able to be fitted into larger openings.
Available in over 150 RAL colours, our OI-30 French Internal Door designs are sleek, modern and visually striking solutions for dividing up your space. The French interior doors can be used for both commercial and residential use – for example, you may want to use our internal room dividers in your living room or dining room to break up the space.
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Hyline Building Systems UK is a leading provider of minimalist, high-performance glazing solutions, specialising in luxury sliding and pivot door systems that seamlessly blend architectural design with advanced technology. As the official UK partner of the global brand, Hyline UK delivers bespoke, ultra-slim aluminium-framed systems that redefine the connection between interior and exterior spaces.
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VELFAC Ribo wood/aluminium entrance doors suit light to medium use, ideal for residential and secondary public entrances. Available in various designs, they can feature glass apertures or maximise daylight with glazing. Only sold with a VELFAC Window system.
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Smart Architectural Aluminium Bi-Fold Doors offer a sleek, modern solution for connecting indoor and outdoor spaces. Designed for durability and energy efficiency, these doors are made from high-quality aluminium and provide excellent thermal insulation and weather resistance. Available in a wide range of colours and finishes, they can be customised to suit any architectural style. The bi-fold doors feature smooth operation with advanced hardware, including multi-point locking systems for enhanced security. Each door undergoes rigorous testing to ensure it meets the highest industry standards.
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Smart Architectural Aluminium Windows combine style, durability, and energy efficiency. Available in styles like casement, tilt-and-turn, sliding, and bi-fold, they are made from high-quality aluminium for excellent thermal insulation and weather resistance. The windows come in a variety of colours and finishes, allowing customisation to fit any design. They also include advanced security features such as multi-point locking systems. All products undergo rigorous testing to meet top industry standards.
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Smart Architectural Aluminium provides a wide range of aluminium systems for windows, doors, and curtain walling. These products are designed to offer durability and energy efficiency, with features that include thermal insulation and weather resistance. Suitable for residential and commercial applications, the smart aluminium systems are available in various finishes and configurations to meet different architectural needs. Smart Architectural Aluminium prioritises quality assurance, with rigorous testing to ensure safety and reliability in all your windows and doors.
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VELFAC sliding doors exemplify Scandinavian craftsmanship and contemporary design. Engineered from a blend of wood and aluminium, these doors prioritize functionality and aesthetic appeal. They are designed to optimize natural light and space efficiency while offering superior thermal performance and durability, suitable for both residential and commercial environments.
