Alitherm™ A-Rated Windows

The Alitherm™ series of windows offer a range of high quality glazing solutions for side hung, top hung open out, top swing reversible and parallel opening casements, suitable for both the residential and commercial markets.

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Thermal Break technology

Improves home energy ratings

Commercial and residential uses

Enhanced to comply with building regulations

The Alitherm Series

Innovative, energy efficient window solutions for home and commercial applications. Introducing Alitherm™ aluminium windows with thermal break technology.

All Alitherm windows utilise an innovative polyamide thermal break technology which creates a barrier between the cold air outside and the warm air inside.

This technology significantly reduces thermal transmittance and enhances the overall U Value of a product.

Alitherm products are available in a choice of standard or non-standard colours, including metallic, dual colour, Smart’s Sensations textured, and Alchemy anodised effect finishes.

Alitherm 300


All general light use applications


  • Features an extended polyamide thermal break which improves the overall U Value of the profile, allowing Alitherm 300 to achieve a Window Energy ‘A’ Rating when used in conjunction with the correct double or triple glazed unit
  • Suitable for both internally or externally beaded, side or top hung open out windows
  • Profiles have the option of either ovolo, chamfered or square edges
  • Frame options for both standard and slim-line stays
  • Option of either multi-point or cockspur locking handles

Alitherm 600


All general light use applications inc commercial


  • An enhanced system designed to comply with the revisions to the Building Regulations
  • Document L compliant
  • System can achieve Window Energy ‘B’ Rating
  • Profiles feature an extended polyamide thermal break to enhance thermal performance
  • Fabrication is by method of crimped or mechanical corners
  • Ovolo, chamfered or square profiles
  • British Standard Kitemarked system KM 81580
  • KM 81543

Alitherm 700

Alitherm Parallel is an innovative solution for enhanced natural ventilation.

The system allows for a balanced, effective airflow whilst maintaining security and safety.

It can also be either a side or top hung casement, or top swing reversible window.


Commercial applications, suitable for multi-storey


  • Alitherm 700 is ideal for insertion into curtain wall facades in both low and high rise commercial buildings
  • The system is suitable for use as either replacement windows in existing buildings, or for installation into new builds
  • Alitherm 700 incorporates internally beaded vents suitable for either cockspur or shoot-bolt locking.
  • The system is also suitable for use with chain-operators, operated either individually or as part of an integrated automated solution for building climate control


Eco-Futural is a versatile range of high performance commercial windows suitable for use as tilt turn, pivot casement and fixed and open out casement windows.

Aluminium profiles feature chambered polyamide thermal breaks that provide excellent thermal performance.


Commercial windows suitable for all: commercial, retail, residential, public, health care, educational applications.


  • Polyamide thermal breaks
  • Suitable for open in tilt turn, top or side hung casements, pivot and fixed and open out casement windows
  • Fully concealed hinges available
  • Weather tested to BS 6375 Part 1:2009
  • Security tested to BS 7950:1997

Alitherm Brochure 2019

Download our brochure for more detailed information about Alitherm Windows

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