We had a helping hoof this week on a glazing replacement to some sash windows. A couple of the panes had cracked, which we were asked to replace.
The glass was original to these 1920s windows and was manufactured using the drawing process which gives the tell-tale vertical ripples in the reflection. As the rest of the glass was original too, using float glass for the replacements would have been quite obvious so we sourced some drawn glass, which is still manufactured in France and Germany.
The putty, being 100 years old or so, had dried to a hard layer, firmly attached to the rebate of the sash. We have a number of different methods to quickly remove old putty without damaging the timber of the sash. This ensures the new glass gets a good bed of new putty and enough depth on the face.
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