Casement Windows

Versatility for different types of performances for your environment.




Our double glazed upvc casement windows are side hung and open sideways without interfering in the internal space.

Hardware Options

Truth Hardware’s Encore Operators – Winder Operated

Winder hardware option uses a rotary operation system to open the window and it consists of 3 components:

  1. Operator and Cover – Operator hardware is located at the base of the window and the mechanism that opens the window sash is only visible when the sash is in the open position. Casement windows use different styles of operators. Operator cover (handle) sits on the spline shaft and is turned to open and close the sash. Cover sits directly under the operator handle and covers the operator gears. Crank handles offer easy operation by rotating a crank to open and close the window. Folding handles provide a sleek and modern look, folding neatly against the window frame when not in use.
  2. Sash locks – The lock hardware is located on either side of the window frame and locks the window. For casement windows above 1000mm height two anti-burglar latches (sash locks) per sash. The locks pulls the sash toward the frame evenly from all sides, this ensures the compression seal is engaged properly and acts as a barrier to air leaks and drafts and ultimately performs to its full potential. Available in two option
  3. Hinges –  Casement solution only comes with 2D butt hinges.

Size Restrictions:

  • Casement Width (min – max) 500 – 850 mm
  • Casement Height (min – max) 700 – 1700mm
  • Max. Casement Sash Weight 80kg

Fly Screen Solution: Fixed aluminium fly screens fitted to interior of window

Push Out Espag Gearing – Handle Operated

Push out Espag multipoint gear option operated all locks via a single movement of handle and it consists of 4 components:

  1. High security mushroom espagnolette gear – multipoint lock. Espag is short for espagnolette. Available in 2 and 4-point locking options.
  2. Espagnolette Striker – These keeps/strikers are a vital part for the window espag lock mechanism to engage into, to secure the window in a closed or night vented position.
  3. Friction Stays –  A wide variety of lengths suit different applications and include: 8inch 10inch, 12inch, 16inch, 20inch, and 24inch. Our friction hinges are available in Standard, Egress, and Restricted these high quality products will improve the weather sealing of your window and ensure a smooth opening and closing action.
  4. Key operated push button handles. The espagnolette handle has a square spindle that projects from the back of the handle and enters the gearbox of the lock mechanism, which is hidden inside the window. By turning the handle you turn the mechanism inside the window which then turns the locking points around the window. Available in straight – inline option and cranked option

Inline – Straight: These are universal handles and can be fitted onto both left and right hand opening windows.

Cranked: Available either cranked left or right. A cranked handle is the ideal choice for windows where the handle will be set close to the edge of the frame and will give the operator greater clearance to open the window.

Size Restrictions:

  • Casement Width (min – max) 400 – 850 mm
  • Casement Height (min – max) 500 – 1700mm
  • Max. Casement Sash Weight 45kg

Fly Screen Solution: Retractable Fly Screens


Our uPVC double glazed casement windows offer a perfect blend of style, functionality, and durability.

  • Thermal Efficiency: Comfort in Every Season
    Experience the dual benefits of warmth in winter and coolness in summer with our uPVC casement windows. Boasting U-ratings as low as 1.6, our casement windows reduce energy costs and carbon footprint, making them a smart investment for a sustainable future.
  • Aesthetic Appeal
    Our uPVC casement windows offer a classic design that complements both modern and traditional homes. They offer clean lines and a simple, uncluttered look, perfect for a range of architectural styles.
  • Superior Durability
    uPVC windows are engineered to withstand the harshest of weather conditions without warping, rotting, or corroding over time. Unlike traditional wooden windows that require frequent maintenance to keep them looking pristine, uPVC casement windows are virtually maintenance-free, saving you both time and money in the long run.
  • Easy Maintenance
    Our uPVC casement windows require minimal upkeep, making them an ideal choice for busy homeowners. With just a simple wipe-down using a mild detergent and water, these windows will retain their pristine appearance for years to come.
  • Security
    German-engineered and featuring integrated multi-point locking mechanisms, our casement windows come with built in peace of mind.
  • Choice of Colours
    Our uPVC Casement Windows are available in a diverse palette of colours, ensuring you can find the perfect match to complement your home’s style. From classic whites to bold contemporary shades from our aludec range, our range is designed to cater to every aesthetic preference, allowing you to personalise your space exactly as you envision it

Technical Details

  • 70 mm construction depth
  • 5 chamber profile
  • Number of gaskets: 2
  • Square slim line profiles with matching glazing bead
  • Uf=1.3 W/m²K
  • Uw=0.99 W/m²K with standard-triple-glazing with Ug=0.6 and Psi=0.040 W/m
  • Up to 41 mm glazing pocket
  • 24mm, 28mm, 36mm, 40mm glazing beads suitable for the best performing triple glazed sealed units
  • Fully reinforced with galvanised steel for maximum strength
  • BAL29 compliant
  • Wide range of laminations available


The installations are done quickly, with an experienced and qualified team that performs the service satisfactorily, with quality and extremely technical.

Similar Products

Awning Windows


Smart Slide Windows


Motorised Windows


Get an Appointment