Standard Vertical Sliders

When you choose Bison windows you will benefit from:

A choice of the traditionalƒ and slimline Bevelled frame or the sleek, contemporary and curved Ovolo frame. ƒ

Full range of window styles available including Casement, Tilt & Turn, Vertical Slider and Reversible. ƒ

All window components are compatible with Bison’s full product range.

PCE concealed gaskets provide a superior seal for improved weathering protection.

Flush glazing provides improved Window Energy Ratings and an enhanced finish.

Cills available in sizes 85mm, 110mm, 150mm, 180mm & 225mm.

Bespoke design and planning service to cater for your individual needs.

If you are looking for a solution to complement the character and style of your home or if you just want to stand out from the crowd, why not consider colour?

Bison offers a diverse range of colour, woodgrain and metallic foil finishes, which will enhance the look of your property - whatever the style.

Getting “A” marks

Bison's product range can achieve a Window Energy Rating of band A.

They are an effective way to save energy through their protection against thermal insulation loss as they retain insulation in your home, which in turn reduces carbon emissions and can lower your heating bills.