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Can You Double Glaze Old Sash Windows In Reading?

Sash windows are an iconic feature of traditional buildings in the UK, especially in Reading and Berkshire, where many buildings still retain their original sash windows. While sash windows have a charm that cant be denied, they do come with some drawbacks including poor insulation, drafts, rattling and noise pollution, all of which can compromise the comfort level of a home.

If youre the owner of an older property with original sash windows, youve likely considered double glazing as an option to improve the insulation of your windows, but you may be wondering whether or not it is possible to double glaze old sash windows in Reading. The short answer is yes! Keep reading to learn more about how Sash Windows Berkshire can help you upgrade your sash windows to double glazed windows, what options you have, and what challenges might be involved.

Who We Are: Sash Windows Berkshire

Sash Windows Berkshire is a double glazed sash window company that specializes in the installation, repair and restoration of traditional sash windows. We are based in Reading and serve the wider South East England area. Our team has over 20 years of experience in the industry and have perfected a patented double glazed systemthat has been tested at speeds of up to 74 mph to ensure maximum energy efficiency and durability.

The Benefits of Double Glazing for Sash Windows

Double glazing is one of the most effective ways to improve the thermal efficiency of your windows, ensuring your home stays warm in the winter and cool in the summer. This is particularly important if youre living in an older property with original sash windows as they may not have been designed with insulation in mind, and could be letting in drafts and noise pollution.

In addition to energy efficiency and noise reduction, double glazing can also make your windows more secure and easier to maintain. It creates a vacuum between two panes of glass, which acts as an insulator, preventing heat from escaping during the colder months or entering during hotter months. This means you could save money on heating and cooling costs, making it a worthwhile investment.

Traditional vs. New Double Glazing

When it comes to double glazing sash windows, there are two options to consider: traditional or new double glazing. Traditional double glazing involves removing the original thin glazing that came with the sash window, and replacing it with thicker, modern double glazing that matches the original style. New double glazing, on the other hand, uses a thinner vacuum glazing systemthat is compatible with the original timber frames.

The choice between traditional and new double glazing will depend on a number of factors, including the condition of the existing sash windows, the desired level of thermal efficiency, and the aesthetic preferences of the property owner. At Sash Windows Berkshire, we offer both traditional and new double glazing options, and will work with you to determine what will work best for your property.

Can You Double Glaze Existing Sash Windows?

Yes, you can double glaze existing sash windows, and it is a popular option for homeowners looking to upgrade without having to replace the entire window system. Double glazing existing sash windows involves adding an additional layer of glass to the window, which can be done on site, without the need for complete removal of the original sash. In this way, it is possible to maintain the original look and feel of the window while improving its energy efficiency.

Challenges Involved in Double Glazing Old Sash Windows

Double glazing old sash windows comes with its own set of challenges, particularly when it comes to ensuring that the new glazing system matches the original window design, and is installed along the existing weight and pulley system. Additionally, the condition of the existing sash window can impact the ease with which double glazing can be installed. If the timber frames are in poor condition, it may be necessary to replace them entirely, which can add to the cost of the project.

Despite these challenges, double glazing old sash windows is a worthwhile investment, as it can increase the energy efficiency and overall comfort of your home, while preserving its original charm.


If youre considering double glazing your old sash windows in Reading or Berkshire, Sash Windows Berkshire is here to help. We are a trusted double glazing sash window company with over 20 years of experience in the industry. Our patented double glazing system has been tested to ensure maximum energy efficiency and durability. We offer both traditional and new double glazing options, and will work with you to determine what will work best for your property.

To learn more about our services, contact us today at 0118 449 2798 or email us at [email protected]. You can also visit our website at for more information.

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