SlimGlaze Windows

Double Glazed Units for Traditional Sash Windows

SlimGlaze

SlimGlaze windows are the most modern double glazed windowed specifically designed to fit into narrow sash window frames. This newly developed system has very slim double glazing making it suitable for the traditional timber widows of period houses.


The majority of these period houses in Dublin are under protective orders. This means that the owners are not allowed to alter the exterior of the building. These older buildings are usually fitted with single glazed windows which have very poor heat retention abilities and are not energy efficient. This leaves many homeowners living in cold and draughty homes. SlimGlaze is the solution to all of these problems.
SlimGlaze windows are designed to fit into the existing timber frames so you can now upgrade your home's windows without changing its appearance at all. Our carpenters will route out the timber frames and remove the old single glazed window panes. Our window technicians are then able to install these super thin double glazed units.


From the outside of the building, you will not be able to tell that new windows have been installed. The unique aesthetic and charm of your Georgian, Victorian, or period house will remain completely unaltered. However, you will definitely notice a change inside your home. SlimGlaze windows allow for up to 77% heat retention compared to 30% retained by the single glazed windows. They also reduce the level of street noise entering your home as well as minimise window condensation and eliminating any window draughts. Ultimately, SlimGlaze will make your home a much warmer, more comfortable place to live.

Increased Heat Retention

Increased Heat Retention

Reduce Energy Bills

Reduce Energy Bills

Noise & Sound Reduction

Minimises Condensation

Maintain Timber Frames

Maintain Timber Frames

Noise & Sound Reduction

Noise & Sound Reduction

Draughts Sealed

Draughts Sealed

Suitable for Period Buildings

Suitable for Period Buildings

Contact SlimGlaze Rathmines to Arrange a SlimGlaze Consultation Today

SlimGlaze – Frequently Asked Questions

  • Can timber sash windows be double glazed?

    Traditionally, all timber frame sash windows were single glazed. Single glazed windows do not have any heat retention capabilities and result in draughts and high heating bills. With SlimGlaze technology you can now upgrade your sash windows to make your home much more energy efficient as well as a warmer, more comfortable place to live.

  • Why should I replace my windows with SlimGlaze?

    Single glazed units only retain up to 30% of warm air. SlimGlaze windows are double glazed units that’s consist of two glass panes with an insulating gas filling the gap between them. SlimGlaze windows allow for up to 77% heat retention making your period property much more energy efficient and reducing your heating bills.

  • Why is SlimGlaze best suited for period buildings?

    Period buildings typically feature sash windows with very thin timber frames. Most double glazed units will not fit in these narrow timber frames. SlimGlaze is designed especially for these narrow frames so you can upgrade your period buildings windows without altering the look of the traditional sash windows.