The Ultimate Guide to Double Glazed Windows in the UK

double glazed windows UK

Double glazed windows are a popular choice for homeowners in the UK for several reasons. They can help to improve energy efficiency, reduce noise pollution, and increase security. 

In this article, we will provide a guide to double glazed windows, covering everything from the benefits to the cost of the installation process.

What are double glazed windows?

Double glazed windows are two panes of glass that are sealed together with a spacer bar in between. 

The space between the panes is filled with air or an inert gas, such as argon. This creates a barrier that helps to insulate your home, reduce noise pollution and bring other advantages.

double glazed windows

Benefits of double glazed windows for UK homes

There are many benefits to installing double glazed windows in your UK home, including:

  • Improved energy efficiency. Double glazed windows can help to reduce your energy bills by keeping your home warmer in the winter and cooler in the summer. 

This is because the air or gas gap between the panes of glass acts as an insulator, preventing heat from escaping in the winter and entering in the summer.

  • Reduced noise pollution. The air or gas gap between the panes of glass helps to block out sound waves.
  • Increased security. Due to the fact that the two panes of glass are bonded together, breaking in through the window is difficult.
  • Reduced condensation. Double glazed windows can also help to reduce condensation on the inside of your windows because the air or gas gap between the panes of glass helps to keep the inside of your windows warmer.

Cost of double glazed windows for UK homes

The cost of double glazed windows for UK homes will vary depending on the size and type of windows you choose, as well as the installer. 

The cost of double glazing a house can range from £1,500 to £2,250 for 4 to 6 windows, up to £2,250 to £6,750 for 15 windows in a detached house.

A typical price of double glazing windows for 3 bedroom house is around £2,000-£3,000 for double glazed windows for a typical 3-bedroom house.

How to choose the right double glazed windows for your UK home

When choosing double glazed windows for your UK home, there are a few things you need to consider:

  • The type of glass. There are different types of glass available for double glazed windows, including standard glass, low-emissivity glass, and solar control glass. Low-emissivity glass and solar control glass can help to improve the energy efficiency of your home, but they are also more expensive.
  • The frame material. Double glazed windows can be made with a variety of frame materials, including uPVC, wood, and aluminium. uPVC is the most popular choice for double glazed windows in the UK because it is affordable and durable. 

Wood and aluminium frames are more expensive, but they can offer a more traditional or contemporary look.

  • The installer. It is important to choose a reputable installer for your double glazed windows. Make sure to get quotes from multiple installers before you make a decision.

Double glazed windows are a popular choice for homeowners in the UK, not only for their energy efficiency and security benefits, but also for their variety of stylish designs. 

double glazed windows 1

Designs of double glazed windows

Here are a few of the most popular double glazed window designs in the UK:

  • Casement windows – Casement windows are the most popular type of window in the UK. They are hinged at one side and open outwards, allowing for excellent ventilation. Casement windows can be made in a variety of styles, including top-hung, side-hung, and tilt-and-turn.
  • Sash windows – Sash windows are a traditional British window style. They are made up of two sliding sashes, which can be opened individually or together. Sash windows are often seen in period properties, but they can also be used in modern homes to create a classic look.
  • Bay windows – Bay windows are a great way to add extra space and light to your home. They project outwards from the main wall of the house, creating a recessed area. Bay windows can be made in a variety of shapes, including rectangular, bow-shaped, and polygonal.
  • French windows – French windows are a stylish and elegant window option. They are made up of two full-length doors that open outwards. French windows are often used in living rooms and dining rooms, as they allow for plenty of natural light and easy access to the garden.
  • Bifold doors – Bifold doors are a modern and space-saving window option. They are made up of multiple panels that fold back against each other, opening up the entire width of the aperture. Bifold doors are often used in living rooms, kitchens, and conservatories, as they allow for a seamless transition between the inside and outside of the home.
  • Rooflights are a great way to add extra light and ventilation to your home. They can be installed in any room, including bathrooms, kitchens, and living rooms. Skylights can be either fixed or opening, and they come in a variety of shapes and sizes are a great way to add extra light and ventilation to your home.

These are just a few of the many double glazed window designs available in the UK. When choosing windows for your home, it is important to consider your style, budget, and the needs of your property.

All in all, double glazed windows can offer several benefits for UK homeowners, including improved energy efficiency, reduced noise pollution, increased security, and reduced condensation. 

If you are considering installing double glazed windows in your UK home, be sure to choose the right type of glass, frame material, and installer to make your home a cosy and comfortable place to live.

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Nicole Sage

Nicole Sage is the founder of Sleek-chic Interiors and is a highly experienced interiors writer and skilled home renovator who has a passion for all things design. She has been featured as an authority at Pinterest, Ideal Home, Daily Mail and in countless other interviews. For 8 years, Nicole has written, observed key interior trends, renovated and undertaken interior short courses at the renown KLC school where she has gained her grounding interior design principles. With a keen eye for detail and a love of creativity, she shares her expertise on the latest interior trends, practical DIY tutorials, and styling inspiration to help others transform their homes into stunning spaces. With a commitment to delivering informative and engaging content, Nicole inspires and empowers readers to explore their own unique sense of style and create beautiful, personalised interiors. Contact her at for interiors advice, colour questions and any commentary.

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