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Rationel is the maker of the variety of timber windows we provide. With these windows, U-values as low as 0.78 W/m2K are possible. As a result, they are a superb double glazing choice for both Passive House and low-energy construction applications.
Our high performance windows provide the very best in durability and insulation, regardless of how harsh the Brighton weather gets. To comply with Secured by Design specifications, these wood windows have security gear as standard, such as several locking points around the frame and reinforced fittings. All Rationel windows integrate aspects for energy efficiency, privacy, and safety to help you get the most out of your project.
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You won’t need to go any further than our selection of gorgeous timber windows, which are created to blend in with classic architecture. These exquisitely crafted double glazed patterns blend a traditional appearance with contemporary performance to provide a completed aesthetic that is truly transformative. Since Rationel has been making windows for more than 60 years, you can be sure that your investment will be in long-lasting quality.
This window style creates the largest possible glass area. This maximises the levels of natural lighting in a room and offers stunning panoramic views of the surrounding scenery.
Whether you are working on a modern commercial project or renovating a traditional home, our fixed light Rationel windows can be made to suit any project. Enjoy large sections of glass whilst maintaining low energy costs.
Top guided windows are ideal for minimalist projects. They are easy to operate with tracks and slides – the top of the sash slides downwards and the bottom opens outwards.
These Rationel windows are designed with no visible external hinges and superior levels of ventilation. You can choose to include a built in trickle vent for effective venting without having to open up the window.
Rationel side hung windows make great access or escape windows and are ideal if you are looking to install an emergency exit in a commercial or industrial property or building.
These windows are designed for maximum durability, offering end users a profile that will last for generations. Even in the harshest weather conditions, the glazing will keep the building protected and those inside comfortable.
This Rationel window style is suitable for multi storey building projects. It has an outward opening like the top guided window, but the sash can be rotated up to 180 degrees on a horizontal axis.
The rotation of the Fully Reversible window means end users can easily access the external of the window. This makes them easy to operate. All you need to do to open the window is grab the top of the frame and pull the window down.
Side guided windows are controlled by tracks and slides. This makes them especially ideal for use in multi storey buildings, where cleaning can only be achieved from the inside.
Our side guided Rationel windows come complete with a sleek and practical design. The contemporary finish has no visible external hinges and an adjustable sash, which moves towards the middle when opened.
The tilt and turn Rationel window is an inward opening and incredibly versatile window. They are hinged from the side and open inwards. Alternatively, for enhanced ventilation, the leaf can be tilted.
Complete with a large glass area for maximum light intake, it’s the perfect door for modern buildings. Tilt and turn doors are easy to access and maintain, making them the ideal choice for multi storey buildings or second story balconies.
An entrance door is a gateway to a home. It’s the first thing people see when entering a home, it needs to make a good first impression. These entrance doors offer sleek lines and an elegant finish.
Flush entrance doors offer a timeless, classic addition to any size or style of building. Our flush fitting front doors doors can be provided in either inward or outward opening. This entrance door is side hinged with visible and adjustable grey Dacromet hinges.
Our range of glazed entrance doors are crafted using a frame and sash. You can also add glazing bars, transoms and mullions. Transform the entrance or exit of a building today.
Available as inward or outward opening, these doors are hung on grey Dacromet adjustable hinges and fitted with a three point locking espagnolette and lockbox with latch and deadbolt. With the right front door, homeowners can totally transform first impressions.
Patio doors are an ideal way to join a building and an outside space. Available as either inward or outward opening, patio doors are ideal for easy access to garden and balcony areas.
The large glazing area of our patio doors allow offers great views and helps flood a room with natural light. Our patio doors come with a handle operated friction brake, which allows for the door to be held open easily in any position.
The tilt and turn door is an inward opening and incredibly versatile system. They are hinged from the side and open inwards. Alternatively, for enhanced ventilation, the leaf can be tilted.
Complete with a large glass area for maximum light intake, it’s the perfect door for modern buildings. Tilt and turn doors are easy to access and maintain, making them the ideal choice for multi storey buildings or second story balconies.
Our casement doors provide the perfect access to outdoor areas like balconies and patios. The slim and elegant profile is designed to help daylight flood into a property, heating it naturally.
Casement doors come fitted with an inbuilt friction brake, simply turn the handle down while in any given position to operate it. Hung on adjustable hinges, the casement door is also fitted with a minimum three point locking espagnolette bolt.
* This product is only available in a timber profile
Our sliding patio doors are designed to be highly energy efficient. The sliding part of the patio makes the lifting and sliding process easy, ideal for homeowners with young children or those mobility issues.
Since there is no swing area, sliding doors are suitable for smaller spaces and homes. With a large glass area, this style of patio door maximises the amount of daylight coming into a building. These glazed units are thermally efficient and secure as standard.
We take great pride in providing two gorgeous product lines for timber windows. The first one is the Rationel AURA, which is perfect for modern structures. The second has a more conventional and classic finish and is called the Rationel FORMA.
From the very core of the inner construction all the way up to the outside frame, they are both made entirely of solid wood. Excellent levels of thermal and acoustic insulation performance are produced as a consequence, along with minimal maintenance requirements. To find out more about our incredible product range, get in touch with our expert team today.
For further details on all the advantages of the timber windows we provide and install across Kent and South East England, please see our vast collection of case studies. View the difference our timber windows can make to a household or business project.
To get a tailored price estimate on your job, use our quoting engine right now. Please get in touch with us right away if you have any questions regarding anything you have read about in our case studies.
Visit our Kent showroom to view our selection of timber windows in person. If you have any questions regarding our range of windows, our team of double glazing experts would be pleased to walk you through our offerings and provide you with all the necessary information you need. Passivlux is pleased to announce that Rationel has named us the best distributor and finest showroom. We are eager to see you and provide a variety of windows and a welcoming environment.
Use our digital price calculator today to get a bespoke estimate on our range of timber windows. Using our innovative online quoting engine will come at no cost to you, can be done on this website and will cost you nothing.
We cater to commercial businesses and projects across the Brighton, Kent, Sussex, London and the South East England area. No matter if you’re working on a heritage home, new build or renovations, our timber windows can bring a sense of style and functionality.
Use our online quoting engine today to get an accurate price on our timber windows. Our windows can help homeowners across the Kent, Sussex, London and South East England region improve the performance of their property.
