Our double glazing range comes in a variety of forms, with uPVC windows, doors, conservatories, orangeries, porches and secondary glazing to choose from. Whatever your home’s needs, we will be able to find something to satisfy them, as well as providing a secure, thermally efficient product. Double Glazing Extensions Swindon

An Excellent Selection of Double Glazing


Our high-quality uPVC windows are crafted in a state-of-the-art manufacturing facility and are easily the right choice for any homeowner. Our windows are not just aesthetically pleasing, as the vacuum-sealed double glazing keeps your home warm naturally, helping you to cut down on energy bills. The durability of double glazed windows will keep your family safe from unwanted visitors. Our windows are designed to last. We have an array of options to choose from and several different frames and styles in stock. Our range includes:


High-Tech doors are created to meet your own personal expectations. Our range includes composite, uPVC and aluminium residential doors, front doors,  composite doors, French, bifold doors or patio doors, providing something for every home. Each style comes in a variety of shapes and sizes that are specifically tailored to suit your home. Where possible, some are also double glazed to provide an extra level of security. Security is an important factor when it comes to buying a new door, and ours will deliver that, whether it is crafted from uPVC hardwood, double glazing or composite materials. They are so secure that they have been accredited by Secured by Design. Doors should also have a long life, which is why at High-Tech, we have given our doors, windows and conservatories a 10-year guarantee.


Our range of conservatories are a brilliant way to lighten up your home and create some extra space. They are crafted from the strongest double glazing available, providing you with not only an excellent view of your garden, but also security. The light let in from the large glass panels helps to heat up your home, meaning you shouldn’t need to be spending as much on energy bills to make your home warmer. We understand that a new conservatory is a large-scale project, so we have set up several flexible finance options to help you achieve your desired goal. These include:

We provide industry-recognised conservatory roofs for our conservatories, such as LivinROOF and UltraRoof380. There are a variety of designs to choose from, including Victorian, Gable, Edwardian or Lean To. Whatever you want, we will find the right design for your home. Bristol Aluminium Windows, Double Glazing

Other Double Glazing Products


If you like the idea of a conservatory but want a little more privacy, then one of our orangeries might be for you. When installing an orangery, we combine brickwork columns with large glass panels that blend into the existing brickwork of your property. Through getting an orangery, you get that little extra security through our double glazed roofs, but also get to enjoy gazing up at the night sky from the warmth and comfort of your sofa.

Single Story Extensions

If you still want the benefit of more space but don’t want an orangery or conservatory, then why not discuss with our team a single-story extension. As well as providing security through new double glazed windows or doors, we can complement the existing character of your property, which in the long-term will increase its value. All our extensions are made to measure, meaning we can easily meet your specifications, and each extension comes equipped with the latest double glazing.


A porch can provide you with an extra level of security from the outside world to your front door and adds character to your home. Whether you use the space to store coats, shoes or any other manner of items, they lend a more welcoming feeling to your home. The double glazing we use in our windows is a secure and energy efficient option, with less heating escaping from the property. Whatever your needs, our expert installations team can meet them.

Secondary Glazing

If you’re looking to update an older property or heritage home, then why not consider an installation of secondary glazing. This option will reinforce and upgrade your existing windows, allowing them to keep their traditional look. They also provide benefits such as added thermal capabilities and an extra layer of security to your property.

Priding Ourselves on Professionalism

Your home deserves to be treated with respect when having double glazing, windows, doors or a conservatory installed. After fitting more than 40,000 windows, doors and conservatories in homes since 1985, we know a thing or two about excellent service. Whether it is through our sales team, installation team or after-care  team, you will receive a professional service from us.

Double Glazing Prices in Swindon

If you would like to get your property double glazed, or would like us to fit some new windows, doors or a conservatory, then don’t hesitate to get in touch. You can call our sales team at 01452 857057 or why not fill out our online contact form, where you can state what product you are interested in. If you already know what your specifications are for a new project, you can get an online quote, which will give you an estimate of our services. If you would like to see our range of uPVC and double glazing products in person, we are currently located at Slaverton Technology Park, Gloucester Road, Cheltenham. Pop in today to start the ball rolling on your new project. Lean-To Conservatory Swindon

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