PVCu Flush Casement Windows

The flush casement is our latest addition to our range of heritage windows. This window style is characterised by openers that close into the frame and finish flush with the face of the window. Its subtle charm enables you to transform both modern townhouses to country cottages like no other.


The flush casement window is made up of Deceuninck’s Heritage PVCu Profile making it unrivalled across the board with superb energy performance, security and durability. PVCu windows, in general, are low maintenance and can reduce energy and heating costs.


Flush casement windows are distinguished by sashes that close into the frame and finish flush with the face of the window. The windows typically have frames that appear the same width, known as ‘equal sightlines’ this is something that undoubtedly improves the overall aesthetics of your window design.

  • Colours
  • Features
  • Hardware
  • Glass
  • Integral Blinds
  • Security
  • Shapes & Styles

Smooth White

white grain

White Grain

Ice cream

Ice Cream

Cream Woodgrain

Cream Grain

Golden Oak S30.30.11.0031

Golden Oak

Irish Oak S30.30.11.0109

Irish Oak

Chartwell Green S30.30.10.0224


Anthracite Grey S30.30.10.0054

Grey Grain

Black Ash S30.30.10.0078

Black Grain

Agate Grey S30.30.70.0038

Agate Grey

English Oak S30.30.11.0044

English Oak

Nut Tree S30.30.11.0033

Nut Tree

Rosewood S30.30.11.0059



Bespoke RAL


Standard Handle

Monkey Tail Gold

Monkey Tail Handle

Monkey Tail Peg Stay Antique Black

Monkey Tail Peg Stay

Teardrop Chrome

Tear Drop Handle

Teardrop Peg Stay Antique Black

Tear Drop Peg Stay

Classic, traditional or contemporary? The choice is yours. Combine your choice of frame with your choice of matching hardware to create a solution that perfectly restores the balance and harmony of your home. The standard handle is available in 8 different finishes and the iron mongery monkey tail and tear drop ranges are available in chrome, gold, graphite and antique black.






Satin Chrome



hardex bronze






ant black

Antique Black

Glass Options

standard glass window

The standard glass unit used in our PVCu flush casement window is 28mm in depth and is comprised of 4mm clear glass to the outside, a warm edge spacer bar and 4mm clear Low E glass on the inside.

The inclusion of argon gas in to the cavity of a double-glazed unit reduces the heat conductance between the panes. This happens because the gas is 6 times denser that air.

Pilkington Optiphon is an acoustic laminated glass that offers excellent noise reduction without compromising on light transmittance or impact performance. Two 3mm pieces of glass are put together with a noise reducing interlayer typically 0.8mm thick. This glass offers the dual benefit of noise reduction and security.

Warm edge spacer bars insulate the edges of a sealed glass unit and separate the panes of glass. Traditionally, spacer bars were made of aluminium, however the warm edge spacer bar used in our glass units is an extruded PVC material specifically designed to reduce transference of heat between the panes of glass keeping more heat inside the property. The spacer bar is available in 3 different colours; grey, black and white. 

Warm Edge Spacer Bars

Obscure Glass

Pilkington’s obscure glass range provides obscuration and decoration.  All patterns are classified according to their level of obscurity in relation to each other, with 1 being least obscure and 5 being most obscure.

Level 5

Level 2

Charcoal Sticks
Level 4

Level 4

Level 3

Level 4

Level 3

Level 5

Level 4

Level 4

Level 4

Level 5

Level 1

Level 4

Satin Glass
Level 5

Our Venetian integral blinds come in a variety of 10 different colours to complement your chosen frame finish. Integral blinds are available on our complete product range excluding bespoke shapes. An extended lead time applies on blinds in 24mm glass units used for our PVCu sliding sash windows and aluminium flush casement windows. Please note that the operational device will always be positioned on the right-hand side (viewed internally).

Option 1: Cordless Slider

Option 2: Cord Mechanism

PAS 24 Security Upgrade

Our PVCu windows come with the option to upgrade the security to comply with PAS 24:2016 security standards.

The upgrade is generally mandatory on new-build projects.


Popular Window Styles

Please note that on flush styles, the window will always have a sash even when it’s non-opening. This allows the window to achieve what is known as equal sightlines.



Weather Performance

The heritage flush casement windows demonstrate every aspect of intelligent thinking that makes it a front runner in both performance and style. To keep out the wind and rain we use patented high performing, multifunctional weather seals. The airtight seal helps to maintain your comfort inside your home.

Energy Rating

The flush casement window comes with all the benefits that you would expect from PVCu and it offers top of the range thermal performance and excellent weatherproofing. With the right glass unit, the flush casement window can achieve energy ratings of up to ‘A+’.


With all Quickslide PVCu flush casement windows, there is a 10-year manufacturing guarantee as standard. We strive to ensure that our quality is assured but having a 10-year guarantee offers peace of mind for years to come. Download our guarantee PDF or speak to one of our team to find out more.


Our flush casement window has been designed to help keep your home safe and secure. Safety is at the top of most homeowners’ lists, which is why safety is an integral built-in feature of our flush casement windows. All our windows come with multi-point locking systems and additional security upgrade packages such as PAS 24 for total peace of mind.

Key Measurements


Frame Depth: 70mm
Glazing: 28mm


Top hung max height: 1160mm
Top hung max width: 1160mm
Side hung max height: 1230mm
Side hung max width: 640mm