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Sat Nov 28 2026 at 09:45 am to 05:00 pm UTC+00:00

Introduction to Sash Window Maintenance and Repair Winter 2026

  • 37 Spital Square, E1 6DY London, United Kingdom · London
The Society for the Protection of Ancient Buildings Publisher / Host The Society for the Protection of Ancient Buildings
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Introduction to Sash Window Maintenance and Repair Winter 2026
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Saturday 28 November 9.45am - 5pm
£150
Join carpenter and timber specialist, Dr Joseph Bispham, and SPAB Technical Officer, Mary Henn, at our Spitalfields headquarters to learn the essentials of sash window maintenance and repair followed by mulled wine (or spiced apple juice) and mince pies in the courtyard.

About the course:
This course is for anyone who lives with or cares for sash windows and would like to learn more about how to keep them looking beautiful and in good working order.
After a day of talks, tours and demonstrations from our experts, Dr Joseph Bispham and Mary Henn, join us for a glass of mulled wine (or apple juice) and a mince pie in our courtyard.
Through a combination of talks, demonstrations and a tour of the building, you will learn:
* Some background on the history of sash windows, including glass production and changing fashions.
* How sash windows work and their component parts.
* Identifying common issues and how to tackle them.
* How sash windows come apart for maintenance like re-cording.
* Suitable paints and when/how to use them.
* Redecorating tips: identifying, addressing and avoiding paint-related issues (e.g. moving parts gummed-up by overpainting).
* Suitable timbers and other materials to use in repairs.
* Window ironmongery.
* Thermal efficiency and comfort, including secondary glazing and other solutions.
Programme:
This programme is subject to minor changes.
9.45am- Arrival and registration with tea and coffee
10am- Introductory Talk: Windows and the SPAB Approach
10.40am - Talk: History and Development of Sash Windows
11.20am - Morning break
11.40am - Talk: Maintenance and Repair
12.20pm - Talk: Retrofit and Energy Efficiency
1pm - Light lunch (provided)
2pm - Sash windows and secondary glazing at Spital Square
2.45pm - Demonstration: dismantling and recording a window, different types of wood, joints and repair methods
3.30pm - Afternoon break
3.50pm - Final talk and Q&A
4.20pm - Mulled wine/spiced apple juice and mince pies
5pm - End
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37 Spital Square, E1 6DY London, United Kingdom, 35 Spital Square, London, E1 6DY, United Kingdom

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