why aluminimum casement

Aluminium Slim Line Casement Windows are great for basic opening windows where slim frames and high levels of performance are required. These frames can be finished in any RAL colour in a range of opening types and create a modern design finish.

Our slim line Casement windows have been designed specifically to meet the needs of UK households. This unique and expertly engineered window system offers the discerning homeowner the perfect combination of exceptionally slim line window frames and the highest levels of performance. With sleek, clean lines, these beautifully designed windows can transform the appearance of any home, adding value to the property whilst also making it warmer, brighter and more secure.


Outward Opening Windows available as Top Hung, Side Hung, Bottom Hung, Fixed. Across the range, the slim aluminium profiles and large panes of double- or triple-glazed units offer the highest levels of weather resistance, thermal insulation and security.

Though often used for projects with a contemporary design aesthetic, slim frame windows are entirely suitable for more traditional homes. Slim frames mimic the sight lines of original steel windows and therefore enable a complete or partial glazing overhaul without altering the character of the property. Replacing old glazing with modern, slim frame windows can also enhance the security and energy efficiency of a period building without compromising its appearance.

innovation & usp’s

  • Up to A-rated thermal performance
  • U-value down to 1.4W/m²K with triple glazing
  • U-value down to 1.6W/m²K with double glazing
  • Typical sightline 65mm
  • Sash width 50mm ONLY
  • Ultra-slim and strong aluminium frames

size and weights

  • Side Hung
    Width (L) = 700 mm
    Height (H) = 1300 mm
    Weight 35kg
  • Top Hung
    Width (L) = 1200 mm
    Height (H) = 1300 mm
    Weight 50kg
  • 70mm frame depth/ glebokość ramy 70mm
  • 28mm double glazed unit/ szklenie dwuszybowe 28mm
  • 36mm triple glazed unit/ szklenie trzyszybowe 36mm
  • Maximum glazing 44mm / maksymalna grubość szklenia 44mm

thermal performance

  • Maximum accoustic insulation
    Rw=45 dB
  • Air permeability
    (BS EN 12207:2000): ClASS 4
  • Water tightness
    (BS EN 12208:2000): ClASS E1200
  • Wind resistance
    (BS EN 12210:2000): ClASS CE 2400/h5>
  • Reference test 1.438 x 1.330 m, 1 sash + 1 fixed.
  • Security test
    (PAS 24:2016): APT


  • Multi-point espagnolette locking system
  • Key-lockable handles
  • Hinge side security brackets
  • PAS 24:2012
  • Secured by Design

configuration & options

  • Optional restrictor hinges
  • Optional astragal bars
  • Optional leaded lights
  • Comprehensive range of glass options


  • Possibility of bicolor systems
  • Color powder coating 400 coulours including structure finish
  • Wood effect
  • Anti-bacterial powder coating
  • Anodized
  • Marine grade coatings available



request a quotation

Please complete your details and a member of our team will contact you as soon as possible to discuss your requirements and provide a free, no-obligation quotation for your glazing.

    contact us

  • 3 Spa Drive, Epsom

    Phone: 07849621941