Guardian Warm Roof

LABC Approved Solid Conservatory Roofs




Comprehensive Range of Styles & Colours




Extensive RANGE of Composite, French & sliding Doors


Glass panel LABC Approved Tiled Roofs




Change The Character Of Your Home

Roof Lanterns

Flood Your Room With Light



Welcome to Windows by Design Ltd

We are dedicated to providing a wide range of professional services, which include: replacing your windows with high quality uPVC or Aluminium Double Glazed Windows, fitting Doors in either uPVC, Composite or Wood. Supplying and installing: Bi-Fold Doors, Conservatories, Orangeries, Aluminium Roof Lanterns and the Guardian Warm Roof.

We pride ourselves on our consistent level of craftsmanship, our pleasant, polite approach, our commitment to providing unlimited levels of customer service and most of all, our general attitude, which means you’ll always get our best help, advice and support.

When it comes to the products themselves, we can promise that security, energy efficiency, modern design and use of the very latest technology is absolutely guaranteed.

We have offices in both Swindon and Bristol.

Replacement Conservatory Roofs

Replacement Conservatory Roofs

Keeping you warm in the winter and cool in the summer. The lightweight, insulated Guardian™ roof system was designed and developed over a ten year period and with one purpose – to replace the typical glass or polycarbonate roof that was used in the construction of most UK conservatories.

Aluminium Doors

Aluminium Doors

Our door systems are strong, lightweight, sustainable and functional. Our door range consists of residential doors, french doors, patio sliding doors and commercial doors. When it comes to security we make no compromise, Windows By Design manufacture to PAS24 2016 standard, meeting the Document Q compliance building regulations.



From the outside it can enhance the property and add individual style to the building and from the Inside, you’ll be getting a beautiful, light space that you’ll be able to enjoy for years to come. Although there are some typical conservatory styles, everyone we design and build is tailor-made to your exact specification.

Roof Lanterns

Roof Lanterns

Roof Lantern’s have become an extremely popular addition to many of the UK home’s. If you’re considering transforming your existing flat roof and requiring more light and a more dynamic stunning finish then we can provide you with numerous options and happy to provide guidance on your choice.

Free Roof Quote

Simply fill in your details and we’ll be in touch

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    Interior / Extras

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Start by choosing your roof style

Choose your new Guardian™ conservatory roof tile

Brick RedBrick Red
Antinque RedAntinque Red
Burnt UmberBurnt Umber

Choose your interior finishes and any extras

Roof WindowsRoof Windows
LED Roof Spot LightsLED Roof Spot Lights

Please enter roof dimensions


    Call us in Bristol

    Call us in Swindon

    Get A Quote Today

    Request A Brochure

    Your Trusted Windows and Doors Supplier in Swindon

    Welcome to Windows By Design – your one-stop solution for premium uPVC windows, aluminum windows, replacement conservatory roofs, composite doors, bi-fold doors, and conservatories in Swindon. As a leading provider of top-quality double-glazing products, we take pride in transforming homes with our energy-efficient and bespoke windows and doors.

    Premium uPVC and Aluminum Windows

    Discover the perfect blend of elegance and durability with our premium uPVC and aluminum windows. Our expertly crafted windows not only enhance the aesthetics of your property but also ensure excellent thermal insulation, helping you achieve a more energy-efficient and comfortable living environment.

    Exquisite Composite and Bi-Fold Doors

    Make a lasting impression with our exquisite composite doors and embrace seamless indoor-outdoor living with our stylish bi-fold doors. Each door is designed to combine aesthetic appeal, security, and functionality, giving you peace of mind while adding charm to your home.

    Stunning Conservatories for Your Living Space

    Create a stunning living space with our beautifully designed conservatories. Whether you seek a tranquil retreat or a vibrant entertainment area, our conservatories are tailored to suit your lifestyle and seamlessly integrate with your home.

    Energy-Efficient Double Glazing Solutions

    Reduce your energy consumption and lower utility bills with our energy-efficient double-glazing solutions. Our top-grade materials and advanced technology ensure that you enjoy a comfortable living space while contributing to environmental sustainability.

    Professional Window Installation Services

    Our team of experienced and skilled professionals provides efficient window installation services, ensuring a flawless fit and maximum performance for your windows and doors.

    Trusted Door Suppliers in Swindon

    As one of the most trusted door suppliers in Swindon, we are dedicated to delivering top-notch products that meet the highest standards of quality and craftsmanship.

    Home Improvements Tailored to Your Needs

    At Windows By Design, we offer a comprehensive range of home improvement services that can be tailored to your unique requirements. Whether you need a window upgrade or a complete renovation, our expert team is here to turn your vision into reality.

    Transform Your Home with Quality Windows and Doors

    Experience the difference our quality windows and doors can make in enhancing the beauty and functionality of your home. From bespoke designs to top-grade materials, we are committed to delivering excellence in every project we undertake.

    Windows and Doors Swindon - Your Trusted Partner

    Windows By Design is your trusted partner for all your windows and doors needs in Swindon. With our commitment to exceptional service and customer satisfaction, we are dedicated to making your home improvement journey a seamless and enjoyable experience.

    Are you in search of the perfect windows and doors in Swindon to enhance the beauty, energy efficiency, and security of your property? Look no further! Swindon Windows and Doors from Windows by Design are your trusted local source for premium windows and doors tailored to your unique needs. With a commitment to excellence and a reputation for top-notch service, we’re here to transform your home.

    Why Choose Windows by Design for your Windows and Doors in Swindon:

      • Expert Craftsmanship: Our skilled craftsmen take pride in every project, ensuring precision and attention to detail in every window and door installation.
      • Wide Selection: Choose from a diverse range of styles, materials, and finishes to match your aesthetic preferences and budget.
      • Energy Efficiency: Our windows and doors are designed to keep your home comfortable year-round while saving on energy costs.
      • Security: Protect your loved ones and valuables with our top-of-the-line security features.

    As proud members of the Swindon community, we understand the unique needs and architectural styles of the area. Our locally inspired designs ensure your windows and doors blend seamlessly with the Swindon landscape.

    Ready to transform your Swindon property with top-quality windows and doors? Contact Windows by Design today for a free consultation. Our friendly team is here to answer your questions and provide you with a no-obligation quote.

    Contact Windows By Design Today

    Ready to upgrade your home with our premium windows and doors? Contact Windows By Design today to discuss your requirements and schedule a consultation. Let us help you transform your living spaces with our top-of-the-line windows and doors in Swindon.