What are the benefits of fitting Secondary Glazing in older buildings?

What are the benefits of fitting Secondary Glazing in older buildings?

Aluminium Secondary Glazing is a versatile and practical system that can specifically enhance older buildings energy performance and security.


Older buildings possess a unique charm, showcasing architectural craftsmanship and heritage. However, they often suffer from inadequate insulation, resulting in energy inefficiency and discomfort. One effective solution to address these issues is aluminium secondary glazing. This versatile and practical system offers a range of features and benefits specifically designed to enhance older buildings. In this blog post, we will provide an overview of aluminium secondary glazing and explore its remarkable advantages for older structures.

What is Aluminium Secondary Glazing?

Aluminium secondary glazing is a method of installing an additional pane of glass or acrylic material on the interior side of an existing window. It creates an extra layer of insulation, improving thermal and acoustic performance while maintaining the integrity and aesthetic appeal of the original windows. Unlike primary double glazing, which involves replacing the entire window unit, secondary glazing is a non-invasive and cost-effective solution that retains the character of historic buildings.

We offer two options in Aluminium Secondary Glazing horizontal and vertical sliding.

Secondary Glazing Hung Options
Features of Aluminium Secondary Glazing:

  1. Customization Options: Aluminium secondary glazing systems can be tailored to suit the specific requirements of older buildings. They are available in various designs, including vertical sliders, horizontal sliders, hinged units, and fixed panels, enabling seamless integration with different window styles.

  2. High-Quality Materials: Secondary glazing frames are constructed using durable and lightweight aluminium, offering strength and longevity. The frames can be powder-coated in a wide range of colours to match the existing window frames or complement the building's aesthetics.

  3. Glazing Options: The glazing units used in secondary glazing can be customized to suit different needs. Laminated glass or specialist acoustic glass can be chosen to enhance noise reduction, while low-emissivity (low-E) glass helps improve thermal insulation and reduce heat loss.

Benefits of Aluminium Secondary Glazing for Older Buildings:

  1. Improved Thermal Efficiency: Aluminium secondary glazing significantly enhances insulation by creating an additional layer of air or gas between the existing window and the secondary glazing unit. This trapped air acts as a buffer against heat loss during winters and heat gain during summers, leading to reduced energy consumption and lower heating or cooling costs.

  2. Noise Reduction: Older buildings often face challenges with external noise infiltration. Aluminium secondary glazing systems, when paired with appropriate glazing options, offer remarkable acoustic insulation. They create a barrier that helps reduce noise levels, providing a quieter and more peaceful indoor environment.

  3. Preservation of Historic Windows: Maintaining the architectural integrity of older buildings is crucial. Aluminium secondary glazing allows the preservation of original windows while improving their functionality. This solution is reversible and can be removed without causing damage, making it an ideal choice for listed or protected structures.

  4. Enhanced Security: Adding an extra layer of protection to windows, aluminium secondary glazing enhances the security of older buildings. The robust frames and multiple locking points provide an additional deterrent against forced entry, safeguarding the property and its occupants.

  5. Condensation Control: Older windows often suffer from condensation issues, leading to dampness and potential damage. Aluminium secondary glazing helps combat condensation by improving the thermal performance of windows, minimizing temperature differences and moisture build-up.

Aluminium secondary glazing offers a range of features and benefits that make it an excellent choice for enhancing older buildings. Its ability to improve thermal efficiency, reduce noise pollution, preserve architectural character, enhance security, and control condensation makes it a versatile solution for sustainable and comfortable living in heritage structures. By opting for aluminium secondary glazing, building owners can modernize their properties while respecting their historic significance and contributing to a greener future.

Find out more about our aluminium secondary glazing systems.


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