Timber Alternative Sash Window Configurations

All of our sash windows ranges are completely configurable ensuring we can design the perfect window for you and your home. With a range of configurable options including glass, astragal bars, cills, gaskets, trickle vents and colours there is no limit to the design of your new window.

Astragal Bars

Originally designed to work around the limitations in glass manufacturing, arstragal bars have become synonymous with period windows and have become a key feature of period homes throughout the UK.

Our ultimate and heritage range feature a fully authentic putty line glazing bar externally and a cottage style ovalo glazing bar internally. Our Charisma range features a cottage style ovalo both internally and externally.

We Can offer a huge range of different configuration of Astagal bars to suit many homes, below are some examples of our most popular designs.


As standard all windows in our timber alternative Collection come with integrated flush cills – perfect for placement on top of a traditional stone cills. Additionally we also offer a range of projecting cill options as detailed below.

Ultimate & Heritage Rose

Integrated flush cill
Integrated projecting cill

Charisma Rose

Integrated flush cill
180mm (overall) sub-cill
210mm (overall) sub-cill

Gaskets & brushpiles

All Charisma Rose windows come with black gasket and grey brushpile.

For Heritage and Ultimate Rose windows, the colour combinations are as follows:

Frame colour Gasket options Brushpile option
White White, silver or black White or grey
White woodgrain White White or grey
Cream woodgrain Silver White or grey
Golden Oak Acorn Grey
Rosewood Brown Grey

Trickle Vents

In an ideal world there would be no need for trickle vents. Regulations and circumstances often create a need for background ventilation and vents are a unavoidable. Our timber alternative sash windows are available with a range of different ventilation options, enabling you to meet your requirements in the most unobtrusive way possible.