flush casement upvc

Flush Casement Windows

We offer a choice of flush casement windows and heritage windows in aluminium and Profile 22 PVC-U .

Trade flush upvc casement window suppliers

As one of the premiere flush casement uPVC window manufacturers in the UK, we manufacture and supply flush casement aluminium windows from AluK and upvc flush casement windows from Profile 22. Choose from the slim sightline AluK 58BW ST HI Flush Casement Window Profile 22 Flush Casement Window, which combines advanced thermal performance with maximum design flexibility.

Flush Casement Window Options

Profile 22 Flush Casement uPVC Windows

Offering u-values of as low as 1.2W/m2K, the Optima Flush Casement window is defined by a flush finish between the sash and frame. A deep bottom rail and heritage hardware are also available making it an ideal window for period homes.

AluK Aluminium Flush Casement Windows

In common with the AluK 58BW ST HI , the AluK 58BW HI Flush Casement Window has an ultra-slim sash, maximising the glazed area, which combined with a flush finish, has been developed to create a clean and contemporary appearance.

Colour options

We bring increased flexibility to design, with a wide choice of low maintenance PVC-U and aluminium foiled and colour finishes.

We offer a wide choice of PVC-U foils and a state-of-the art in-house spray painting capability including smooth flat finish contemporary greys to period cream woodgrains,.

Our aluminium window ranges are available in a choice of single or dual colour, marine grade and powder-coated options in any RAL colour.

Glazed or frame only supply.

With our own energy efficient sealed unit manufacturing capability, we can also supply a wide range of security and laminated IGUs as well as the complete Planitherm range from Saint Gobain. That’s frames and sealed units (if you want them!) on a single delivery.

Secured by Design casement windows.

We’re an accredited Secured by Design window and door manufacturer, which means we offer a full range of Secured by Design composite entrance doors and Secured by Design window options.

With our own energy efficient sealed unit manufacturing capability, we can also supply a wide range of security and laminated IGUs.

Profile 22 Optima uPVC casement windows

from Emplas are available in a choice of chamfered, sculptured or flush casement options.


Chamfered detailing features a more contemporary and simpler bevelled edge, with straight sightlines.


Sculptured detailing offers a more traditional decorative finish replicating the curves found on traditional timber windows.


Flush Sash

Featuring a dedicated slimline window sash flush within the outer frame, recreating a period aesthetic.


High security windows with smart technologies

Our uPVC window ranges are manufactured with advanced locking mechanisms from Avantis and the Kubu Smart Sensor – as standard.

The Kubu sensor allows end-users to monitor the status of their window and door locks in real-time, sending a notification if it’s been left unlocked and allowing them to check if their home is secure anytime, anywhere, from the Kubu app.

Storm Casements, Tilt-and-turn and Fully Reversible Windows

Why not take a look at our other energy efficient uPVC double-glazed and aluminium window options.

Casement Windows

We are casement window manufacturers, fabricated in Optima, the energy-efficient next generation system from Profile 22; plus we offer the AluK 58BW ST HI  Aluminium window.

Tilt-and-Turn Windows

We also manufacture the energy efficient Profile 22 Optima uPVC Tilt-and-Turn window plus we offer the AluK 58BW HI  aluminium Tilt-and-Turn window. Each is ideally suited to a wide range of commercial applications.

Fully Reversible windows

Perfectly suited to low and medium rise applications, or where accessibility may be an issue, we also manufacture the Optima Fully Reversible uPVC Window from Profile 22.

24/7 online ordering

Want to find out more about our energy efficient window and door ranges?

Aluminium door and window system supplier

Our range includes the Unifold HI bi-folding door systems and the EdgeGLIDE+® Inline Sliding Door plus a range of AluK aluminium windows.

Flush casement windows have a distinct style among all the various window options for trade customers. This specific window style replicates the visual look of traditional timber window frames, combined with 21st-century engineering and thermal benefits. The key feature that sets flush casement windows apart is their sashes, which sit flush into the frame, creating a clean, seamless appearance. A 90° mechanical joint on the sash is important, particularly in replacements in older properties, where owners want to match with their original timber windows. This design makes them an attractive choice for those seeking both classic and modern window solutions.

Available in a variety of finishes, including popular options like anthracite grey, black and creams which align with contemporary design choices.

Flush casement windows offer several advantages that make them an appealing choice for trade customers. One of the primary benefits lies in their exceptional thermal efficiency, a crucial consideration in today’s construction industry. These windows can accommodate double and triple glazed units, significantly reducing heat loss and enhancing overall energy efficiency. This feature not only ensures compliance with the latest thermal regulations but also helps end users save on energy bills and create more comfortable living or working spaces.

Additionally, flush casement windows are known for their appearance. The flush sash window design , provides a continuous finish that appeals to those seeking a premium and modern window solution. This window type has the flexibility to offer a 90° mechanical joint on the sash and is important, particularly in replacements to older properties where owners want to match the look of timber windows.

This visual appeal extends to various colour options, which complement both contemporary and traditional properties. For trade customers, these advantages make flush casement windows a versatile and attractive choice that meets both visual and functional homeowner requirements. For more information or any questions, contact Emplas, your local casement window suppliers. 

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