Frequently Asked Questions


What is double glazing?

Double glazing refers to the construction of windows or doors with two glass panes separated by a gap, creating an insulating layer of air or gas. This design helps to reduce heat transfer and improve energy efficiency in buildings.

What are the benefits of double glazing?

Some key benefits of double glazing include improved thermal insulation, reduced energy consumption, noise reduction, increased security, and condensation control. It can also enhance the overall comfort and value of a property.

How does double glazing improve energy efficiency?

Double glazing reduces heat transfer between the interior and exterior of a building. The insulating layer between the two glass panes helps to trap heat inside during cold weather and prevent heat from entering during hot weather. This leads to reduced heating and cooling costs and improved energy efficiency.

Does double glazing reduce noise?

Yes, double glazing can help reduce outside noise significantly. The two glass panes, along with the air or gas layer in between, act as a barrier to sound transmission, providing a quieter and more peaceful indoor environment.

Can I retrofit double glazing to my existing windows?

No, it is not possible to retrofit double glazing to existing windows. Double glazing is a complete windows system that included the removal of the existing frame and glass and replace it with a replacement frame and glass.  Secondary glazing a retro fit  system that is fixed to your existing windows. It does not offer the same energy efficiency, noise reduction or  low maintenance benefits of double glazing.  It is recommended to consult with a professional double glazing provider to assess the feasibility and options available for your specific situation.

How long does double glazing last?

With proper maintenance and care, double glazing can last for several decades. The lifespan may vary depending on the quality of materials used, installation techniques, and environmental factors. Regular cleaning and inspection can help prolong the life of double glazed windows and doors.

Is double glazing expensive?

The cost of double glazing can vary depending on factors such as the size and type of windows or doors, the materials used, and the complexity of the installation. While double glazing may require an initial investment, the energy savings and other benefits it provides can make it a cost-effective choice in the long run.

Can double glazing help reduce condensation?

Yes, double glazing can help reduce condensation on windows. The insulating layer between the glass panes helps to maintain a warmer temperature on the inner glass surface, minimizing the potential for condensation to form. However, it is important to ensure proper ventilation and humidity control within the building to further prevent condensation issues.

Are there different types of double glazing?

Yes, there are different types of double glazing available, including standard double glazing, low-emissivity (low-E) glass, and laminated or toughened glass for enhanced security. Each type offers specific features and benefits, and the choice may depend on factors such as climate, noise levels, and personal preferences.

Can I still open and close double glazed windows?

Yes, double glazed windows and doors can be designed to open and close just like regular windows. There are various styles and configurations available, including casement, sliding, and tilt-and-turn options, allowing for ventilation and easy operation.