Home > Companies > Profile 22 Systems > 128 mm Vertical Sliding Windows

Fully ovolo detailed PVC-U vertical sliding windows with sash options to ensure equal sightlines and a tilt-in facility to allow easy cleaning. The 128 mm front to back dimension makes it ideally suitable for traditional timber box sash replacement. Wider sill options are also available to enable a range of installation options.

Profiles are extruded to BS EN 12608 and the fabricated sliding window provides excellent weathering performance. The vertical sliding window holds kitemark accreditation.

Related literature

The following content references this product:

Standard product features

Vertical sliding system:

Fully featured ovolo detail frames and sashes.


Acrylic modified high quality impact resistant white PVC-U extrusion, producing a rigid multi-chamber profile to BS EN 12608, manufactured in accordance with BS EN ISO 9001 and BS EN ISO 14001 and BES 6001 Responsible Sourcing.


Specific members are reinforced with galvanized steel or aluminium sections within the profile's cavity as defined in the technical manual.


  • 24 mm insulated glazed unit to BS 6262.
  • Co-extruded glazing beads are provided for internal glazing.
  • Low line PCE glazing system.


  • Energy efficient windows achieving Window Energy Rating (WER) of A, B and C.
  • WER of A+.
  • U-values of 1.4 W/mK achievable.
  • Air permeability testing 600Pa, water tightness 300Pa and window resistance 1600Pa (weather tested to BS 6375-1:2009).
  • A combination of bubble and brush seals ensure performance meets the requirements of BS 6375-1


Colour foils:

Consult manufacturer for further details and lead times. Note that the RAL colours listed are not exact matches; the manufacturer recommends that the colour match is checked prior to use to ensure suitability. Colour swatch booklets are available upon request.

  • Agate grey RAL 7038.
  • Anteak.
  • Anthracite grey (smooth) RAL 7016.
  • Anthracite grey RAL 7016.
  • Basalt grey RAL 7012.
  • Black brown RAL 8022.
  • Brilliant blue RAL 5007.
  • Chartwell green BS14C35.
  • Cream RAL 9001.
  • Dark green RAL 6009.
  • Dark oak FL-F1.
  • Dark red RAL 3011.
  • English oak.
  • Hazy grey RAL 7001.
  • Irish oak.
  • Light oak RAL 8001.
  • Mahogany RAL 8017.
  • Natural oak FL-G.
  • Rosewood RAL 8017.
  • Rustic oak 1.
  • Siena PR.
  • Signal grey (smooth) RAL 7004.
  • Slate grey (Finesse) RAL 7015.
  • Slate grey RAL 7015.
  • Steel blue RAL 5011.
  • Swamp oak ST-F.
  • Walnut V.
  • White foil RAL 9010.
  • White PVC-U RAL 9003.


Minimum and maximum window sizes vary across the range of window styles, please consult the manufacturer for further details.


  • Caldwell specialist sliding sash hardware fitted.
  • Caldwell tilt restrictor mechanisms are applied.
  • Windows with suitable hardware meet the security requirements of PAS 24.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-25-99/330 PVC-U window units

NBS Specification

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This product is associated with the following NBS clauses:

Product specification

An important note about specifying



Profile 22 Systems


+44 (0)1952 283377

Product reference

128 mm Vertical Sliding Windows

Colour/ Finish

 - External:
[ ______ ]
 - Internal:
[ ______ ]

Glazing options

[Georgian bars]
[Leaded glass]
[Patterned glass]


[Controllable ventilators]
[Permanent ventilators]
[Sash lock]
[Tilt restriction]
[Torsion spring balance]


[ ______ ]

Manufacturer details

Stafford Park 6,
Shropshire, TF3 3AT
Tel +44 (0)1952 283377
Fax +44 (0)1952 290460
NBS Plus