Flush Casement Windows

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Flush Casements have been made for centuries. The Lineal Window Range by Central RPL is timeless. It doesn’t date and doesn’t need to shout. Its shape, its lines, everything about the balance between the frame and the opening panes was already perfected, we’ve just made it more durable with improved weatherproofing and increase insulation.

They are available in 2 options, Classic and Heritage.

Lineal Classic is a flush casement window using standard welding technology to provide you with a flush casement for all applications.

Lineal Heritage used the latest technology in PVCu manufacturing, replicating the look of a true timber window ideally suited to cottage and heritage-style properties. This system provides the heritage look without compromising the strength of the window.


Flush Sash

Specially designed to overcome the design issues associated with traditional casement windows

Our flush casement windows mimic the traditional appearance of period properties, whilst offering superb energy efficiency and lower heating bills. They offer the perfect solution for planners in areas protected by conservation orders looking for a flush ‘sash’ casement that replicates the 19th-century timber window design, whilst offering modern features and benefits.

A flush casement is where the opening windows sits flush in a frame rather than standing proud. The simple lines and proportions also mean it has masses of potential even in more modern buildings. Providing an exceptional level of energy efficiency and an attractive modern aesthetic, making it an ideal choice for older properties with character and heritage to preserve.


  • Manufactured from the Optima Window System by Profile 22
  • Yale Hardware with Lockable Night-vent facility
  • 6 chambered system
  • Deep Bevel for authentic aesthetics
  • Cotswold stainless steel friction hinges as stand
  • Locking handles
  • 24mm Low-sightline glazing bead
  • Designed and manufactured in Great Britain
  • A comprehensive range of ancillaries to cover all building applications


Energy Efficiency

  • WERS available to A++
  • Low U Value achievable

Product Options

  • Centre Seal available in Opening Vent
  • Easy Clean and Restricted Friction Hinges
  • Various hardware colours available
  • Heritage/traditional Hardware range
  • U Value of 0.8 available
  • Multiple glazing options, including astragal bar and integral blinds

Colour range



















Anthracite Grey

Black Brown

Brilliant Blue

Chartwell Green

Hazy Grey

Dark Red


Moss Green

Signal Grey (Smooth)

Slate Grey

Steel Blue


Wine Red


Black Cherry

Dark Oak

English Oak

Natural Oak

Rustic Oak

Swamp Oak


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You can call us on
0121 500 0505

Central RPL

Units 7 – 10 Kelvin Way Trading Estate,
Kelvin Way, West Bromwich,
West Midlands, B70 7TN,
United Kingdom

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