Pronto Joinery Ltd
Pronto Joinery Ltd

Sliding Sash Windows

Traditional sash windows are often found in Georgian and Victorian houses. Originally they had single glazing and had no draught seals. To facilitate operation, the weight of the glazed panel is usually balanced by a heavy lead or cast iron sash weight concealed within the window frame. The sash weight is connected to the window by a sash cord that runs over a pulley at the top of the frame.

Today spring balances are often used to meet the needs of modern double glazed sash windows. They are fully draught proof. Our products are of the highest quality. Our timber sash windows can be traditionally made to suit conservation areas or to meet current building regulations with the added benefit of providing modern age thermal insulation qualities.

Sash Gallery

Sash Hardware Gallery

Standard sash hardware includes sash fastener, sash lift and dee handle in a choice of Pvd Brass, Satin Chrome or Polished Chrome. Black Antique is also avalable at an additional cost.


Please note Angel safety restrictors are an optional extra. They are used to restrict the opening to 100mm. They can be operated to open fully in the event of an emergency escape.

Brass / Pvd Sash Hardware

Polished Chrome Sash Hardware

Satin Chrome Sash Hardware

Black Sash Hardware

Sash Spring Adjustment downloads

d- spring balance-fitting-instructions ([...]
Adobe Acrobat document [3.3 MB]
f-k---m-spring balance-fitting-instructi[...]
Adobe Acrobat document [3.2 MB]
ERA Sash balances timber-std-vs-manual.p[...]
Adobe Acrobat document [1.1 MB]
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