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alu-clad composite windows and doors

High-Quality Alu-clad Windows & Doors From Rationel

Rationel is an international company with offices in Great Britain, Ireland and Denmark and they specialise in high-end windows and doors, renowned for wooden and alu-clad products that provide superior comfort and quality. They use ethically sourced wood and aluminium and we are extremely pleased to offer these products to our customers across Bristol, Bath, Cardiff and beyond.

Rationel is well known for classic wooden windows and doors with an outer layer of robust metal. Timber windows and doors have exceptional thermal qualities, while aluminium is incredibly strong and hardwearing. Combining the two gives you the advantages of both.

Alu-clad timber windows have a longer lifespan and require less maintenance. They offer extra protection from unwanted intruders and severe weather conditions and can last up to twenty years longer than others on the market. Products like Rationel Aura Plus and Rationel Forma Plus are ideal for homeowners looking for style, sophistication and security in abundance. They are also remarkably versatile, with the option for curved doors, oversized sashes, curved opening windows and much more. Request a quote to start your project now. 

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AURA & AURA PLUS

The AURA range is constructed from solid timber, offering all the beauty of a natural wood finish. AURAPLUS timber composite windows also have durable exterior aluminium cladding, which provides extra protection against the harshest of weather conditions and requires zero maintenance.

Both AURA and AURAPLUS ranges offer a wide variety of different styles, colours and additional glazing options to suit your project. With its high-performance triple-glazing, AURA and AURAPLUS can reach U-values as impressive as 0.8 W/m2K. They can be relied on to easily achieve the Passivhaus standard of energy efficiency, dramatically reducing your CO2 emissions and energy bills.

For outstanding architectural elegance and energy efficiency look no further than AURA and AURAPLUS triple-glazed windows and doors. Their sleek, minimalist design and superb optical clarity are ideal for creating extensive glazed areas that let in maximum natural daylight for a pleasant modern living environment.

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FORMA & FORMA PLUS

Forma & Forma Plus are the new concepts from Rationel that provide a traditional look for your new or renovation project. Today, period and classic houses can also be refurbished to enjoy the advantages of energy-efficient windows, achieving U-values as impressive as 0.8 W/m2K. Our FORMA range consists of all-timber windows with slim, non-continuous bars.

The FORMAPLUS range is similar to the FORMA range, produced with the same solid timber construction. The only difference is that FORMAPLUS is provided with external aluminium cladding attached with clips, ensuring minimum maintenance. This product range is also ideal for a new build if a classic expression is desired.

FORMA and FORMAPLUS are available both with and without glazing bars. To fit in with your design, we have a variety of different glazing bars. Terrace and entrance doors with glazing and wooden infill panels are also part of the range. They are easy to join in multiples and therefore suitable for complex window solutions. 

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Endless Colour Choices

Discover how our wide range of colours can add character and distinction to your home. You can choose from our popular standard colours or, for an additional cost, our exclusive range of non-standard RAL colours. From White to Anthracite, Silver Grey to Rowanberry we’ll have the perfect finish for your door.

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Composite windows and doors
composite doors
composite windows and doors
composite windows near me

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Enhance Your Home With A Composite Door

Panoramic supply and install composite doors in homes throughout Bristol, Bath and surrounding areas. Composite doors can suit the style of any home, whether you are looking for a modern or traditional design. With a range of styles to choose from and the option to custom design your door to be fully bespoke, you can be sure to find the perfect door for your home.

We are extremely proud to be a Premium Installer of Endurance doors. Why? Because we can provide the UK’s finest range of solid timber-core doors that boast unrivalled levels of security, energy efficiency and aesthetics.

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Solid Timber Core for High Standards of Robustness

Our composite doors use high-end and advanced manufacturing techniques resulting in a profile that is unrivalled anywhere else on the market. Renowned for its solidity, the 48mm thick solid timber door slab is 10% thicker than other composite doors that are available.

Unlike uPVC doors which are made of just plastic, our composite doors are made from multiple materials that are pressed and glued together under high-pressure conditions. Endurance composite doors have a Solid Timber Core and are made up of 17 laminations, making them inherently resilient and hardwearing. Our doors from Endurance are built to last.

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Composite Doors to Suit Any Home

In a choice of three different styles, to suit the style of any home, our composite doors are divided into the Classic, Urban and Country collections. The Classic collection composite doors are inspired by the Georgian and Victorian eras. Ideal for the most traditional style of home.

The Urban collection can ideally suit the most contemporary style of home. With their stainless steel handles, you can design a truly bespoke door design to make a stylish statement to your modern home.

The Country collection is a composite door range to channel your country charm into. In a choice of tones to ideally suit your surroundings, our country doors can give you the freedom you need to choose the right door for your home.

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Latest News

How To Stop Window Condensation

Window condensation is a widespread problem for homeowners across Bristol, Bath and the surrounding areas, particularly during autumn and winter. It develops when warm, moisture-heavy air inside a property comes into contact with colder window surfaces, causing water droplets to form on the glass. Although condensation may appear to be a minor inconvenience, prolonged exposure can lead to mould growth, damage to window frames and surrounding walls, and a decline in indoor air quality. Understanding how to stop window condensation is essential for protecting both your home and your health. What Causes Condensation on Windows? Condensation is most common in homes with poor insulation and limited ventilation. Older properties found throughout Bath and many parts of Bristol often still rely on single glazing or inefficient double glazing, which allows internal glass surfaces to become very cold. Everyday activities such as cooking, bathing and drying clothes indoors increase humidity levels, and without adequate airflow, moisture settles on the coldest surfaces in the room, which are usually windows. While opening windows and improving ventilation can help, upgrading your glazing is the most effective long-term solution How Casement Windows Help Reduce Condensation Modern casement windows are one of the best ways to prevent condensation forming on windows. High-performance casement windows from Panoramic Windows use advanced double or triple glazing to keep internal glass surfaces warmer, reducing the temperature contrast that causes condensation. For homes across Bristol and Bath, this results in drier windows, improved comfort and better overall energy efficiency. Casement windows also allow excellent ventilation control, enabling homeowners to release humid air quickly when needed. Their tight seals prevent draughts while still allowing fresh air circulation, which helps regulate indoor moisture levels. Alongside condensation reduction, casement windows improve thermal efficiency and reduce heating costs, making them a practical and visually appealing upgrade for both modern and traditional homes. Secondary Glazing Secondary glazing is an ideal solution for homeowners who want to reduce condensation without replacing original windows. This is particularly important in listed buildings and conservation areas, which are common throughout Bath and central Bristol. Secondary glazing involves fitting an additional pane internally, creating an insulating air gap that keeps the original window warmer and significantly reduces condensation. This solution is highly effective at improving thermal performance while preserving the character of period properties. In addition to condensation control, secondary glazing improves sound insulation and helps lower energy bills. For homeowners seeking a discreet, planning-friendly solution, secondary glazing from Panoramic Windows offers long-lasting benefits. Aluminium Windows Aluminium windows are a popular choice for contemporary homes and renovation projects across Bristol and the surrounding areas. Modern aluminium window systems are designed with advanced thermal break technology that prevents cold from transferring through the frame. This ensures internal surfaces remain warmer, reducing the likelihood of condensation forming on both the glass and frame. In addition to their excellent thermal performance, aluminium windows provide slim sightlines and larger glass areas, allowing more natural light into the home. Their durability, low maintenance requirements and resistance to corrosion make them a long-term solution for homeowners who want to address condensation while achieving a modern, minimalist appearance. Why Choose Panoramic Windows in Bristol and Bath? Choosing the right window solution is only part of the equation; professional installation and local expertise are equally important. Panoramic Windows has extensive experience supplying and installing high-quality casement windows, secondary glazing and aluminium windows across Bristol, Bath and nearby areas. Their team understands local property styles, conservation requirements and the challenges posed by the regional climate. By offering bespoke solutions tailored to each home, Panoramic Windows ensures optimal thermal performance, effective condensation reduction and long-lasting results. Every installation is designed to enhance comfort, improve energy efficiency and protect your property from moisture-related issues Stop Window Condensation with the Right Window Upgrade Window condensation does not have to be a permanent issue. Whether you choose energy-efficient casement windows, conservation-friendly secondary glazing or modern aluminium windows, upgrading your glazing is one of the most effective ways to prevent condensation and improve indoor comfort. For homeowners in Bristol, Bath and the surrounding areas, Panoramic Windows provides proven solutions that address condensation at its source. Window Prices Bristol If you are struggling with condensation on your windows, contacting Panoramic Windows by using our contact form or by giving us a call on 01179 717880 for expert advice and for a tailored quotation, you can use our bespoke quoting engine, is the first step towards a warmer, healthier and more efficient home.
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Keeping Your Conservatory Warm in Winter

At Panoramic Windows, we understand that conservatories are a wonderful addition to any home in Bristol, Bath, and the surrounding areas, providing a bright, peaceful space to relax. However, as winter sets in, many homeowners struggle to keep these rooms warm and comfortable. Poor insulation can make conservatories chilly and drive up energy bills, but with the right solutions, you can enjoy your space all year round. The Importance of a Conservatory Roof Your conservatory roof is one of the most important factors in keeping the space warm. Traditional glass or polycarbonate roofs often fail to retain heat effectively, leaving rooms cold during the winter months. Upgrading to a thermally efficient roof can transform your conservatory into a cosy, energy-efficient space. At Panoramic Windows, we specialise in replacement conservatory roofs designed to improve insulation while enhancing the aesthetic appeal of your home. Upgrade to a Thermally Efficient Roof Installing a modern, insulated conservatory roof is one of the most effective ways to reduce heat loss. Our replacement roofs are specifically designed to enhance warmth and minimise energy usage, meaning you can enjoy your conservatory even on the coldest days without relying on constant heating. Solid or tiled roofs not only improve insulation but also add a stylish finish to your home. Our lightweight tiles come in a variety of colours and styles, allowing you to match the character of your property — whether it’s a historic home in Bath or a modern property in Bristol. Enhancing Insulation Throughout the Conservatory While the roof is crucial, whole-room insulation can make a significant difference. Double or triple-glazed windows, insulated flooring, and tightly sealed frames help prevent heat from escaping. Homeowners across South Gloucestershire, Wiltshire, and Somerset can benefit from our guidance on the best glazing and insulation options to maximise thermal efficiency. Keep Your Conservatory Warm with Double or Secondary Glazing Upgrading to new double glazing or secondary glazing is one of the most effective ways to improve the thermal efficiency of your conservatory. Modern double-glazed windows trap heat inside, reducing draughts and keeping your space cosy during the coldest winter months. For homes in Bristol, Bath, and the surrounding areas, secondary glazing can be an excellent option for older conservatories or listed properties where replacing the existing windows isn’t possible. Not only does glazing enhance warmth, but it also improves sound insulation, reduces condensation, and boosts your home's overall energy efficiency. At Panoramic Windows, we guide homeowners through the best glazing options, helping you choose windows that complement the style of your conservatory while delivering long-lasting comfort. With high-performance glass and expert installation, you can enjoy a bright, light-filled conservatory that stays warm year-round without driving up your heating bills. Regular Maintenance Is Key Routine checks of your conservatory can prevent heat loss caused by draughts, leaks, or damaged seals. Timely maintenance not only keeps your conservatory warm but also protects your investment and extends its lifespan. Conservatory Roof Prices Bristol If your conservatory feels cold or underused during winter, it may be time for a roof replacement or insulation upgrade. At Panoramic Windows, we offer expert advice and high-quality replacement conservatory roofs for homeowners in Bristol, Bath, and surrounding areas. Enhance your home’s comfort, reduce energy bills, and transform your conservatory into a warm, welcoming space year-round. Contact us today by using our contact form, or get a quote by using our bespoke quoting engine.
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Is Your Period Home Losing Heat? Why October is the Month to Switch to Energy-Efficient Sash Windows

It is that time of the year where the colder evenings are drawing closer and the unavoidable moment of switching on your central heating is near.  But as you turn your heating on, a feeling of disappointment immediately follows as the warmth quickly vanishes and you feel a ghostly draft chilling your beautiful, historic home. This coldness is common in charming period properties, particularly due to sash windows being the culprit. Whilst sash windows add an aesthetic value, original single glazed sashes are the reason for losing huge amounts of heat loss. At Panoramic Windows, we have the perfect solution. One that means you don’t have to choose between period character and modern comfort.  October is a critical month to upgrade, so you can secure warmth before the deep winter cold sets in. The Great Escape: A Cold Hard Look at Old Sashes In October, the shock of immediate winter bills begins. According to the BBC, UK energy bills are about 50% higher than pre-Covid levels.  The heat in your home can escape through inefficient windows and doors, so it is important that you upgrade in time for the winter temperature drop. To distinguish how your home is losing heat, we recommend that you start by finding the symptoms of a heat-leaking window. These can include: ratting when it is windy, excessive condensation and mould build up, and having to turn the thermostat up just to feel comfortable.  Replacing your inefficient windows is important, especially in October. If you are unsure if your windows are performing well, contact us and we will be happy to provide you with some expert advice.  The Panoramic Solution: Performance that Preserves Here at Panoramic Windows, we provide sash windows that are specifically designed to look authentic while delivering top-tier performance. They feature slim sightlines, traditional run-through horns, deep bottom rails and authentic hardware to match. Maintaining their period charm, they are approved for use in conservation areas in Bristol and Bath. Supplied by Roseview, our sash windows feature high performance double or triple glazing and achieve excellent U-values compared to old single-pane glass.  High quality uPVC and timber materials are also available and our windows are even A-rated for energy efficiency, guaranteeing a reduction in heat loss.  Why October is the Deadline, Not Just a Date Beat the winter rush and get your sash window project started. Our installation teams get booked solid as winter approaches, so October is your perfect opportunity to get ahead. Upgrade your sash windows now and enjoy a warm, cosy and quiet home for the entire winter season. You will enjoy the added benefits of advanced security and reduced maintenance. Claim your Warmth and Choose Panoramic Windows Today Stop feeding your heating bills to the frosty air. Upgrade to Panoramic’s modern sash windows for the perfect, long-term solution. Get your free, online quote or contact us for more information today.  Alternatively, book an appointment and bring your vision to life with Panoramic Windows. { "@context": "https://schema.org", "@type": "Article", "mainEntityOfPage": { "@type": "WebPage", "@id": "https://www.panoramicwindows.co.uk/Latest-News/is-your-period-home-losing-heat-why-october-is-the-month-to-switch-to-energy-efficient-sash-windows" }, "headline": "Is Your Period Home Losing Heat? Why October is the Month to Switch to Energy-Efficient Sash Windows", "description": "This article discusses why homeowners should upgrade to sash windows for their period homes with Panoramic Windows.", "image": "https://www.panoramicwindows.co.uk/app/uploads/2025/10/sash-windows-panoramic-800x600.jpg", "author": { "@type": "Organization", "name": "Panoramic Windows", "url": "https://www.panoramicwindows.co.uk/" }, "publisher": { "@type": "Organization", "name": "Panoramic Windows", "logo": { "@type": "ImageObject", "url": "https://sunflexuk.co.uk/wp-content/uploads/2020/11/Panoramic-Logo.jpg" } }, "datePublished": "2025-10-08", "dateModified": "2025-10-08" }
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Frequently Asked Questions

What Are The Advantages Of Aluclad Windows?

Arguably, their biggest advantage is that they’re very low maintenance. Aluclad windows are remarkably resilient and will require only the occasional clean to maintain their looks. They’re also versatile, attractive, and cost-effective, giving you plenty of long-term value for money. They’ll even improve your kerb appeal and can potentially increase your property value. 

Is There A Warranty On Rationel Windows And Doors?

Are Aluclad Windows And Doors Energy Efficient?

How Is A Composite Door Different To A Regular Front Door?

Do Composite Doors Warp?

Are Composite Doors Expensive?

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