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Aluminium Sliding Patio Doors

High-Quality

Discover Our Aluminium Range

Our expertly engineered aluminium windows, doors and glass roof systems turn homes into stunning contemporary living spaces.

Whether you’re enhancing an extension, transforming an interior or redesigning a space, choose from a range that delivers on both design and performance.

With an extensive choice of colours, finishes, glazing and hardware options, every detail can be tailored to suit your style.

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Why choose Williams Windows?

Made in Britain

All windows and doors are manufactured here in the UK

30 Years in Business

Transforming homes since 1996

Premium Quality Value

The highest quality at the best value for our customers

10 Year Guarantee

All installations carry a 10-year guarantee as standard

Customisable Style Options for Your Aluminium Windows and Doors in Glasgow and Surrounding Areas

Choose from limitless colours and high quality hardware hardware options to create your dream home

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  • Colours
  • Hardware & Accessories
  • Downloads

    Download the brochure below to explore the breath-taking designs, security features, and high performance of our aluminium windows and doors.

    Colours

    Four elegant standard colours are available, or a bold design statement can be made with unlimited colour options and textured finishes. Any shade from the full RAL colour range can be selected to perfectly complement any design.

    Colours

    Colours

    Hardware & Accessories

    Aluminium Hardware & Accessories

    Aluminium Hardware & Accessories

    Aluminium Hardware & Accessories

    Patio Door Hardware

    Patio Door Hardware

    Aluminium Windows

    Customers can choose from window styles including casement, tilt and turn, and heritage, each bringing excellent security and thermal performance.

    As we custom make each product, there’s also a wide range of sizes, colours and finishes down to the finest details.

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    Aluminium Casement Window
    Aluminium Bi-Folds

    Aluminium Bi-Folds

    Built for everyday performance, our aluminium bifold doors open smoothly to connect indoor and outdoor spaces. Each panel folds neatly to maximise space and provide easy access.

    Strong, lightweight frames ensure lasting durability, weather resistance, and low maintenance, while quality seals and glazing enhance insulation and efficiency. Designed for reliability, they offer long-term value for any property.

    Our range includes the Smart Visofold 1000 and Smart Visofold 1000 Slim, the most popular aluminium bifold door systems in the country, trusted for their smooth operation, slim sightlines, and proven performance.

    Aluminium Front Doors

    Choose from a versatile selection of systems – including our Alitherm 400 residential doors and french doors, or our classic heritage doors.

    For more premium options, we also supply Smarts contemporary front door collections – Signature and Designer.

    Aluminium Signature Door
    Aluminium Front Door
    Aluminium Sliding Doors
    Aluminium Sliding Doors

    Aluminium Sliding Doors

    Engineered for effortless movement, our sliding doors glide open and create expansive transitions between indoor comfort and outdoor freedom.

    Compact, lightweight and visually pleasing, our sliding aluminium door range gives you freedom of movement and durability for decades. Available with both double and triple glazing, each pane guarantees maximum natural light while maintaining comfortable, ambient temperatures.

    All of our aluminium external sliding doors are independently tested for up to 50,000 roll cycles, as well as water and wind resistance during extreme weather periods.

    Our products are BSI Kitemark accredited, with a PAS24:2022 option for added security.

    Aluminium French Doors

    Our aluminium double doors are some of the most popular in the UK, opening up homes to the outside. Bringing in more light, air, and space, they make it easy to move between indoors and outside – perfect for gardens, patios, and terraces.

    Made from premium aluminium, they maintain their strength through all weather conditions, needing very little upkeep. Thanks to thermal break technology, your home remains insulated at all times.

    Featuring Smart hinges and robust locking handles, each has been tested to industry leading security standards.

    Aluminium french doors

    What You Need to Know About Aluminium

    What is the life expectancy of aluminium windows and doors?

    Our contemporary aluminium window frames can last up to 30 years thanks to hardwearing materials and modern manufacturing methods. They can last up to 10 years longer than traditional uPVC window frames.

    Can aluminium windows be energy efficient?

    Aluminium frame windows can be energy-efficient. While aluminium is not known for being an insulative material, our thermal break technology creates a barrier between warm air inside and cool air outside. This means that our windows are capable of reaching a Window Energy Rating of B as a minimum, all the way up to A+, depending on the product you choose.

    What colour options are available in aluminium?

    All products in our aluminium range come with stock colours – black, white, grey and grey-on-white. You can also choose single or dual KL or RAL colours for a more varied palette, including hundreds of different shades.

    What are trickle vents, and do I need them?

    Trickle vents are a helpful feature of made to measure aluminium bifold doors that manage airflow. These are background ventilators that are fitted within door frames to allow a continuous flow of air, even when the doors are closed.

    You can open and close these slits as you wish, but for maximum ventilation without heat loss, they should be kept open at all times.

    As modern homes become more airtight, these regulations help to maintain indoor air quality, reducing the risk of mould from moisture buildup.

    To maximise ventilation in your property without heat loss, we would recommend adding trickle vents to your design.

    Would you ever recommend aluminium instead of uPVC?

    We would never recommend a uPVC Bi-Fold. Whilst they are available, we believe strongly that any bi-fold should be alunimium.

    Do aluminium doors have any advantages over uPVC?

    Aluminium outside doors are better than uPVC for quality, durability and looks. While uPVC is cheaper, it does not last as long as aluminium and may not withstand extreme weather conditions or intrusion attempts. Our aluminium doors are manufactured with security and energy efficiency in mind, complying with BS4873/PAS24 for added protection. They also use ‘thermal break’ technology.

    While aluminium is generally a conductive material, these ‘thermal breaks’ help to create gaps between warm air inside and cold air outside, saving you money on energy bills. Finally, aluminium is generally slimmer and more compact, allowing for larger panes of glass to maximise natural light.

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    Your Buying Journey

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    Book Your Free Design Consultation

    You can book an appointment online, by emailing or click on the ‘Book Online’ button below. Choose a convenient time for us to visit your property.

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    Receive a Consultation

    Within a few days, a dedicated sales representative will meet with you to discuss your needs and preferences. During this consultation, you will receive an initial quote, which will also be emailed to you for your convenience.

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    Order Confirmation

    We will call you to discuss a convenient installation date. We will then begin the manufacturing process. All windows and doors are custom made to fit your property.

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    Installation

    Our installers will fit your new windows and doors. On completion they will walk round the house and confirm you are happy with everything. When you are, you will pay your invoice and receive your 10-year guarantee.

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    Book online mockup Meeting of people looking at notes Woman on office phone Williams Windows & Doors Fitter Installing Bathroom Winiow

    Don’t just take our word for it…

    Read our customer testimonials below which showcase our dedication to service and the quality craftsmanship
    we bring to every project.

    Brilliant experience from a local company who put customers first Firstly, I chose this company because of Trustpilot reviews - windows and doors are a...
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    Sharon Dunbar

    Trustpilot

    Needed new door ASAP. Angela was absolutely fabulous. Got our door within 3 weeks. Door is gorgeous. The boys that fitted the door did a...
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    Helen McMinn

    Trustpilot

    Professional service and good communication from initial consultation through to fitting of the doors.

    Rory Hamilton

    Google

    I had new windows and a back door fitted by Martin, Kieran and Matt , they were very friendly and did a excellent job and...
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    Ann Duncan

    Trustpilot

    I would recommend Williams Windows & Doors for any job, the staff were very friendly and professional, the products are excellent as were the installers,...
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    Iain Dingwall

    Google

    I was recommended Williams Windows and Doors by a friend and I can see why. Easy, no hassle estimates that were very competitive, really good...
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    Neil Ross

    Google

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