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.
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Flush Casement Windows
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.
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.
Optional Outer Frame Centre Seal
Optional Sash Central Seal
Sculptured Edge Design
Double Chamfered Edge Design
Glazing Options up to 44mm Triple Glazed
5 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










Testimonials
What our customer says

Fay Daway
Trade Client
“Fabframes have supplied all of the windows and doors for our recent residential complex project. All of them are of high quality and adhere to spec.”

Greg Daniels
Trade Client
“Thanks again Mike and team, the windows and doors you supplied for our recent build were top-notch and bang-on size. Thank you!.”
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Sam Phillips
Trade Client
“Do not hesitate using Fabframes. The work is unbeatable, the quality unmatched and the delivery always on time. Highly reccomend the team at Fabframes.”
quick turnaround