Sash Window Repairs 0800 689 0166
Sash Window Repairs0800 689 0166

Why double glaze your windows



Installing double glazing in your sash windows saves heat and reduces noise. It’s an excellent way to keep your old and original sash windows, whilst enjoying the benefits of modern heat retention technology.


You could save between £100-160 a year on heat loss alone, with less impact on the environment.


How it’s done


The dimensions of your current sash windows are carefully measured; the frame stays in place, and we replace the older single glazed sashes with modern, double glazed ones.


These will match the colour and texture of the original as closely as possible; existing features are carefully replicated, including any decorative horns and your new sashes will fit in with the traditional style of the other houses in your street. Take a look at our 'before and after' 


Dimensions and thickness


The thickness of your existing single glazed sash will dictate the thickness of the new double glazed unit. These vary from window to window but we usually fit an 18mm double glazed unit (2 panes of 4mm glass and a 10mm gap).


Sometimes the gap between the panes can be increased to 12mm, permitting a 20mm double glazed unit.


If the dimensions of your sashes are wide enough, we can fit 24mm double glazed units (2 panes of 4mm glass with a 16mm gap).


The bigger the gap, the more effective the window is at breaking up certain sound waves and increasing sound proofing. All new sashes and boxes are draught proofed.


Please call our team for more advice or information on single, double or triple glazed units that can be set into your original sash windows: 0800 689 0166 

Available Mon - Sat


Come and visit us at our Islington, St Albans Workshops



Tel: 0800 689 0166



Call our team for a no obligation quote by one of our in-house joiners

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