Advance Glazing specialise in the sash window restoration, repair of timber sliding sash windows, and the manufacture of timber sliding sash windows. We are committed to sympathetically restoring all timber sash windows that we work on.

This means that all of our clients can expect that their timber windows will be treated with the greatest of care by highly skilled sash window craftsmen who work cleanly, quickly and efficiently to restore your windows to their best possible condition.

Advance Glazing provides a nationwide service and responds promptly to all enquiries.


We are specialists in all Sash Window renovation services and can expertly repair your Sash Windows. Our four most popular services are

Sash Window Restoration & Repair

– Full window service including sash, shutter, cord and counter-weight repairs

Sash Window Replacement

– Replacement of sashes and all window elements in original styles

Sash Window Draught-Proofing

– Seal loose or draughty windows

Sash Window Glazing/Double Glazing*

– Single & double glazing solutions for Sash Windows

* There are different options for glazing – primarily single or double glazing. In certain cases, it will be necessary to maintain single glazing where buildings are listed and of heritage value.

Double glazing provides better thermal insulation, reduces energy bills, and makes your home feel much warmer. Double glazing can be fitted as part of a new sash window or can be fitted into an existing windows.

Customer Feedback

My experience with advance glazing was satisfactory from start to finish.

From I first contacted them they were very efficient,they had my windows surveyed and quoted within three days of the first furniture and floors were protected with dust sheets and any residue cleaned up afterwards.

I was not only happy with the price but happy with their workers and standard of work.

Stephen,Waterloo Road Dublin