Sash window renovation specialist Ventrolla has helped to preserve the heritage of an iconic 200 year old building in central Dublin.


In a large renovation effort to restore the General Post Office (GPO), headquarters of the Irish postal service, Ventrolla was enlisted to tackle many of the deteriorating sash windows after office workers experienced draughts, leaks, rattles and operational issues.

To remedy this, Ventrolla began by removing decaying timber and filling the cavities with its unique epoxy resin VR90, moulding it to match the existing timber profile. This was followed by a service of the pulleys and sash cords to ensure smooth operation.

The windows then received a performance upgrade with the installation of Ventrolla’s unique Perimeter Sealing System, eliminating draughts and rattles.

Ventrolla carried out the work to suit the needs of the busy office and the wider restoration project, arranging night shifts in order to complete the renovation on schedule.

Building contractor, Alison Mawhinney, who oversaw the project, said: “The windows of the GPO were very old and have not been maintained throughout the years. Ventrolla was great at dealing with this and taking an individual approach to each window to ensure the aesthetics weren’t comprised.

“The team were also very flexible and accommodating when it came to the shift changes, which we really appreciated.”

The General Post Office was built in 1818 and has witnessed many important and historic events in its time, including the Easter Rising in 1916, when the GPO served as headquarters for the uprising leaders.

Ventrolla offers a bespoke renovation service for timber sliding sash and casement windows as well as timber doors. The company has its central office in Harrogate, North Yorkshire, with additional locations throughout Ireland and the UK.