Knight Collection - Sliding Sash Windows - Sash Window Catalogue

Oct 28, 2026

Upload by asba

Knight Collection provides a range of sliding sash windows for Georgian, Regency and Victorian property restoration, explaining traditional box-sash construction, counterbalanced weights, and common stylistic variations such as glass pane layouts, glazing-bar styles, and fixed sidelight and arched sash options. It outlines available frame materials (timber, aluminium-timber composite, and UPVC), customization of hardware, locks, colours, sash horns, and glazing bars, and describes movement options including spring-balanced and tilt-and-easy-clean designs. A product range compares UPVC affordable options, timber alternatives, timber purist offerings, and alu-clad protection, with detailed ECOslide PVC-U styles, horn options, finishes, and foil colours for realistic woodgrain effects.

LanguageEnglish

CategoryLifestyle

FormatPDF

Pages20

Reading Time31 min

AccessFree to download

Sliding Sash Windows

Materials and Customisation Options

Window Movements and Easy Cleaning

Range Comparison: UPVC, Timber, Timber Alternative, Alu-Clad

Sash Window Styles and Architectural Shapes

Horn Details

Colour & Foil Finishes

T H E K N I G H T C O L L E C T I O N SLIDING SASH WINDOWS SASH WINDOWS A sliding sash window also known as a box sash or weighted sash area must for any Georgian, Regency of Victorian property restoration. A traditional sliding sash window is generally made from timber and consists of two sashes one top and one bottom. The two sashes are housed within a box style timber frame that houses the weights that counterbalance the movement of the window. The are many different styles of sliding sash windows throughout the UK, differences across the many styles include the number of glass panes per sash, the style of the glazing bars, ﬁxed sidelight and arched sashes. We are proud to offer a large range of vertical sliding sash windows (many of which are on display in our showroom) . Each of our Sliding Sash styles can be provided in a choice of materials to suit your home or development, you can choose between Traditional Timber frames, Aluminium and Timber Composite frames or modern white UPVC. Our UPVC range can be enhanced with a white-ash timber ﬁnish or a bespoke wood-grain foiled ﬁnish to match the style of the property. Our timber sash windows can be supplied in a range of soft and hardwoods and painted in a range of colours and stains. With the wide range of styling options throughout all of our sash window ranges, we can design a window to suit any type of property from a new build right through to Edwardian and Victorian properties. Details such as hardware, locks, glazing bars, sash horns, colours and much more can all be customised to suit your property. Our Sliding Sash Windows can be provided with a choice of movements from a traditional vertical sash window, to a spring balanced window or a Tilt and spring window which are spring balanced with a clever rotation system. A SASH FOR EVERY PROJECT We are proud to offer a large range of vertical sliding sash windows (many of which are on display in our showroom) . Each of our Sliding Sash styles can be provided in a choice of materials to suit your home or development, you can choose between Traditional Timber frames, Aluminium and Timber Composite frames or modern white UPVC . Our UPVC range can be enhanced with a white-ash timber ﬁnish or a bespoke wood-grain foiled ﬁnish to match the style of the property. Our timber sash windows can be supplied in a range of soft and hardwoods and painted in a range of colours and stains. With the wide range of styling options throughout all of our sash window ranges, we can design a window to suit any type of property from a new build right through to Edwardian and Victorian properties. Details such as hardware, locks, glazing bars, sash horns, colours and much more can all be customised to suit your property. Our Sliding Sash Windows can be provided with a choice of movements from a traditional vertical sash window, to a spring balanced window or a Tilt and spring window which are spring balanced with a clever rotation system enabling easy cleaning of the external side of the windows from the inside of the property. OUR RANGE |
UPVC
Affordable sash windows

An Ideal choice when looking for an authentic looking window without the maintenance required by timber windows. Our UPVC range is available in a variety of brands and styles. |
TIMBER ALTERNATIVE
A true low maintenance authentic sash window

Our timber alternative sliding sash windows are similar in fabrication to our standard UPVC range however they feature a number of disti nctive advancements that give them a much more authentic look. | | --- | --- | |
TIMBER
The original material of choice

The original sash window timber is the material of choice for the purist. We have a wide range of timber sash windows available suitable for all property styles and budgets. |
ALU-CLAD
True timber sash window with added protection

Looking for the soft ﬁnish of timber internally without the maintenance of timber ex

FAQs

What construction is used in a traditional sliding sash window?

A traditional sliding sash window is typically made from timber and uses two sashes (one top and one bottom) housed in a box-style timber frame. Weights counterbalance the movement of the window.

What materials and finishes are available for sliding sash windows?

Options include Traditional Timber frames, Aluminium and Timber Composite frames, and modern white UPVC. UPVC finishes can be enhanced with white-ash timber finishes or bespoke wood-grain foiled finishes, and timber can be supplied in soft and hardwoods and painted in a range of colours and stains.

How do the windows support easy cleaning?

The tilt-and-easy-clean function uses an inward opening tilt facility that allows safe cleaning of the outside frame and glass from inside the property, which is especially useful for multi-storey or hard-to-reach windows.

Oct 28, 2026

Upload by asba