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Sash Window Restoration


Everything You Need To Know About Sash Window Restoration

Sash window restoration

Bolger Sash Windows is Ireland’s market leader in the restoration and performance upgrading of existing sliding sash windows. Drawing on over 120 years of experience and expertise we can completely renovate almost all period sash windows, on-site, and improve their original quality. Our workmanship enables our clients to retain their unique, valuable, architectural features in their original form, remaining true to the timeless style of the property.

Sash window restoration in period homes

Sash windows are an integral part of the character of your period home. However, draughts, decay, high heating bills, traffic noise and windows refusing to open, can be quite a compromise. We can solve all of these problems to that you can enjoy a new world of comfort and convenience.


Our skilled team repair or replace any areas of rot, and with the introduction of a high-performance draught-proofing system your windows will:


  • Be draught-proof
  • Be energy efficient
  • Slide up and down easily
  • Add value to your property


We have been repairing and draught-proofing existing sash windows since 1988.


We assure you that you will be totally satisfied with the end result.

Stages of a typical sash window restoration project

After your initial enquiry with our office, we will follow up with a detailed inspection of your windows together with a written report and estimate. This service is free of charge in residential circumstances. Ordinarily, with commercial projects, there is a report fee which is waved upon the awarding of the project.


Work to your windows will be carried out by a team of experienced carpenters on-site and will include:


  • Fitting a draught-proofing system
  • Replacing sash cords
  • Rebalancing weights
  • Replacing staff beads & parting beads
  • Repairing or replacing frames and sashes
  • Ensuring easy sliding action

Upgrading Existing Sash Windows – To Double Glazing

With Bolger double glazed sash windows you can be assured:

  • Glazing bars are the exact match of original bars
  • Sashes are correctly made – glazing bars are not stuck on
  • External glazing bones are not stuck on. They are housed into the sash in a lattice frame
  • Sashes are putty glazed on the outside


We offer a wide range of glazing options including Pilkington Optitherm double-glazing and BENGglas tempered glazing. 


Sash Windows

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Casement Windows

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Window Refurbishment

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