vertical timber sliding windows
box sash windows
Vertical sliding sash window
Vertical sliding sash window
Sash springs
Vertical sliding sash window
sash cords and weights
Timber Box Sash Windows
Vertical sliding sash win


Vertical sliding sash window

Vertical sliding sash windows have been designed specifically for UK market. Sash windows consist of two panels that slide vertically.

Functionality of vertical sliding sash windows

Sash windows allow convenient space arrangement in close proximity of the window. Vertical sliding system offers functionality and practicality in everyday use.
Both sashes can be asymmetrically designed (offering restricted opening). One or both sash can slide open. Sash windows timber might have decorative frame or sash elements such as horns or mullions added making it perfect application for traditional and historic buildings or renovation projects, emphasizing English style and elegance.


The spring mechanism is a modern application based on custom selected springs with weight of the window carefully calculated and taken into account. There is frame depths available: 156 mm.


The cord and weight mechanism is a traditional application used for vertical sliding sash windows opening where counter balance weights are fitted and operate inside the window frame. There are frame depths available: 156 mm.

Made-to-measure wooden windows

Our clients can specify dimensions, colours, number of window sashes and additional profiles arrangement. Variety of technical solutions enable undertaking the most sophisticated projects even when ordering a single window.

The price of SASH window is custom calculated for each order.

Installation depth  156mm
Heat transfer coefficient  n/a
Available glazing units  24 mm
Standard glazing  4/16Ar/4 (Rw=31dB, Lt=80%, g=63%)
Other standard accessories  Handles, locks, hooks
Warranty   5 years*
Certificates ITB, ITT, FSC
Order processing time  from 5 - 7 weeks
*detailed warranty conditions available from your sales representative

Additional parameters

Window colours
Additional profiles and accessories
Ornamental window panes
Windows with roller shutters

Sash window accessories

Download technical drawings

timber windows sash

timber windows sash horn

timber windows sash Accessories

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