Window Replacement to Improve Energy Efficiency Whilst Restoring Architectural Integrity

Upgrade of Georgian Sliding Sash Windows and Restore of Historical Authenticity

Energy Efficiency Windows Replacement

This O.P.W. (Office of Public Works) building required a complete replacement of the underperforming uPVC windows, which provided with poor thermal efficiency and detracted from the authentic historical look.

Cardinal traditional sliding sash windows were specified through the window builder to replicate the original Georgian window design with Lamb’s Tongue glazing bar profiles.

The contractor was able to ensure minimum disturbance to the office with Cardinal reliable lead times and carried out the installation within the set budgets and deadlines.

The high-performance wooden sliding sash windows were paramount in restoring the original charm to this O.P.W. office.

Sliding sash window replacement project details

  • Project: Window replacement for energy efficiency upgrade and architectural integrity restoration
  • Number of units: 11 Georgian style wooden sash windows with Lamb’s Tongue glazing bar profiles
  • Types of Units and Applications: High-performance weighted sliding sash windows
  • Hardware: Chrome sash locks and lifts
  • Finish: Factory finished paint RAL 9010


Order Your Energy Efficient Sliding Sash Windows Today

Cardinal News

Excellent quality and very reliable lead times at a fair price. Would highly recommend Cardinal Windows to anyone looking for traditional styled windows.

- Dermot Long - Dublin

I ordered 15 sliding sash windows for my home refurbishment project and had my builder install the windows for me. I think I spent hours playing around with the different design options on the window builder! I absolutely love my new windows!

- Rachel Chalke - London