Casement Windows

Timber Casement Windows

Historically, casement windows (also known as cottage windows) were already in use in the 16th century in Britain. They succeeded the stone mullioned window and pre-dated sash box windows. Subdivided by glazing bars that joined together the small panes of glass, the earlier designs had the opening part of the window – the ‘casement’ – made of iron with lead latticing to the glass. By the beginning of the Victorian period, the frames and opening casements were made entirely of timber. Windows of 6-panes per casement were the most common pattern, but designs were occasionally elaborated by the use of Gothic arches or smaller panes, depending on the fashion in certain parts of the country.

The traditional flush timber casement became the most common window type by the second half of the 18th century. Casement windows started their career mainly in farmhouses and cottages. However, they abounded in palaces and wealthy households as well. Obviously, like anything else, the features of casement windows have developed over time, too. Initially, in Georgian era, only small glass panes were used. As the technology of producing glass developed and improved, so the panes of glass became bigger. Subsequently, the number of panes per casement was reduced to two with one horizontal glazing bar. However, smaller pane sizes become popular again in the Edwardian era. There are different types of casements and one of the more recognisable is one with leaded lights in different configurations. The panes can be square, rectangle, diamond, round, tipcat and other. It just testifies to the fact that, say what you will, but casement windows simply cannot be boring! They are smart, practical and attractive. They are flexible in a way that would suit every type of house, no matter what its style, periodic or modern.

Traditional casement flush windows have great aesthetic merit. In addition to that, their careful design pledges to keep your home wonderfully warm, quiet and extra secure.
Our challenge was to make casement windows which look simple but are in fact very sophisticated. Hidden away is modern technology – warp resistant timber, Roto® Secured by Design locks engage in multiple points around the perimeter of every opening, ventilation grooves, drainage channels and glazing units which lose much less of the heat in comparison with ordinary windows.
Our traditional casement flush windows have great aesthetic merit. In addition to that, their careful design pledges to keep every home wonderfully warm, quiet and extra safe. Excellent thermal and weather performance is guaranteed. Our challenge was to make casement windows which look simple but are in fact very sophisticated. Hidden away is modern technology – warp resistant timber, Secured by Design locks engage in multiple points around the perimeter of every opening, ventilation grooves, drainage channels and glazing units which lose much less of the heat in comparison with ordinary windows. Our casement window in timber replicates the typical features of traditional English design without compromising performance.

Standard Specification

– High quality hardware – friction hinges and multipoint locking in standard.
– Standard timber: Softwood (European Redwood) with a hardwood sill.
– Other hardwood options available: European Oak or Red Meranti from Malesia.
– Only engineered (laminated) wood used to advance the quality, durability & performance.
– Timber harvested only in sustainable and certified forests.
– Fully factory finished with 3 microporous coatings applied on an anti-rotting & anti-fungi primer.
– Spray-painted with Remmers typically to RAL 9003 or to client’s specification.
– Any colour from the RAL Palette is available with us.
– Option duo-colour available – one colour externally & different one internally.
– Double glazing: standard, safety or double-safety glass depending on the requirements to meet Part L document.
– Sample glass spec – Safety: 4mm/16Argon/4mm Toughened (ESG4) Low E with Warm Edge Spacer Bar.
U-Value 1.1W/m²K
– Achieving excellent U-Value for the whole window, much lower than the standard of 1.6W/m²K required by law.
– Enhancing options available on request: acoustic upgrade, solar-reflective & solar-control glass.
– Possibility of leaded lights in different configurations.
– Internally glazed in order to provide a secure anti-burglar solution & easier maintenance.
– Elegant glazing/Georgian bars.
– Secured by Design lockable handle.
– Ironmongery available in 3 basic colours: Polished Chrome, Satin & Brass.
– ‘Monkey Tail’ handles and other periodic ironmongery, including additional stays available on request.
– Fully weather-stripped.
– Optional, but required by law for new build: trickle vents.
– Excellent thermal and acoustic performance.