Fab Frames Ltd
Fab Frames Ltd
Solidor
Flush Casement Windows Flush Casement Windows Flush Casement Windows Flush Casement Windows Flush Casement Windows Flush Casement Windows Flush Casement Windows

Flush Casement Windows

The fundamental concept behind our product is elegantly straightforward. We meticulously recreate the classic aesthetic of a conventional window frame, paying careful attention to its dimensions and sightlines. We augment this with a host of supplementary features, such as period hardware, cills, glazing bars, and accompanying accessories. Our selection of period colours and finishes perfectly complement the historic charm of the design. However, we do not stop there. Our windows leverage the latest advancements in 21st century materials, offering unparalleled benefits in terms of thermal and acoustic insulation, weatherproofing, and security while remaining easily maintainable.

Fabframes Defendoor

At our company, we understand that the quality of our products is only half the story. We also recognise the importance of ease of use and convenience for our customers. That's why we have designed our Flush Casement suite to be compatible with other components from our Optima range. This not only makes the stockholding and installation process easier for our customers, but also ensures that the windows are easy to live with in the long run.

Our commitment to excellence is evident in every aspect of our product line, including the advanced technology and tooling used in the manufacturing process. This ensures that our windows have a superb surface finish, precise dimensions, wall thickness, and internal webs. We have also taken care to optimise drainage and place seals in strategic locations for long-lasting performance. Our system surpasses the requirements of UK and EU Building Regulations and PAS24, and has been accredited by the British Standards Institute. At our company, we believe in providing our customers with the best possible products and service, and our Flush Casement suite is no exception.

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The Optima difference

Optima Flush Casements are a top-of-the-line product that offer superior quality and performance over other flush casements on the market. In developing this product, we have paid close attention to replicating the original features of timber casements while also incorporating the latest technology to ensure exceptional thermal performance.

Our commitment to quality and attention to detail is what sets Optima Flush Casements apart from the competition. We understand the importance of maintaining the aesthetic beauty of a building, while also ensuring it is energy efficient. Our flush casements not only look better, but they also insulate better, making them a smart and sustainable investment. With Optima Flush Casements, you can trust that you are getting the best of both worlds: a product that is beautiful and energy efficient, with no compromises.


  • Fully welded or mechanically jointed frames
  • Internally glazed for security
  • WER’s ranging from A to C
  • Highly impact resistant PVC-U
  • Optional Outer Frame Centre Seal
  • Optional Sash Central Seal
  • 4 Chamber Sash
  • 6 Chamber Outer Frame
  • Optional RCM Thermal Inserts create up to 6 chamber sash and 8 chamber outer frame
  • 10mm Cover on Weather Seals
  • Deep bottom rail for added authenticity
  • Double Bubblex weatherseals to protect from wind and rain
  • 24mm double glazing as standard
  • BBA approved multi-point lock meeting BS 7950 with smooth, reliable action
  • Attractive ovolo shaped beads
  • Choice of classic white, and numerous coloured and wood effect foil finishes
Accreditations