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Alitherm Heritage

Alitherm Heritage Windows and Doors provide the ideal solution for heritage applications such as listed building renovations and large scale refurbishment projects where planning constraints are to be considered.

A modern solution for timeless style and lasting performance.

Alitherm Heritage Windows and Doors offer a stylish, like-for-like alternative to traditional materials, combining classic elegance with the exceptional thermal efficiency of modern aluminium systems. Ideal for heritage projects, including listed building renovations, the Alitherm Heritage range delivers a lightweight, durable, and cost-effective solution with a host of contemporary benefits.

Key Features

As with all our products, safety, security and longevity is paramount. Blending period charm with advanced aluminium technology, there are many benefits that make the Alitherm Heritage range the ideal choice for restoration and renovation.

  • PAS24 accredited
  • Made to measure
  • Excellent thermal
    performance
  • Colour options

Alitherm Heritage Gallery

Designed for heritage projects, built for modern living.

Choosing the Alitherm Heritage range will provide you with a modern light-weight, high-strength and cost effective alternative to traditional steel window system, offering a wide range of benefits. Alitherm profiles utilise Smart’s 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. 

Aluminium Brochure

Flexible solutions for every project.

Alitherm Heritage Windows are offered in a variety of styles, including fixed-pane, sash, top-hung, side-hung casement, pivot, and tilt-and-turn configurations. Alitherm Doors are designed for both single and double door applications, available in a wide range of sizes, and come equipped with multi-point locking systems and face-mounted, finger-thrown locking bolts for added security.

Side-Hung

Tilt & Turn

Single Door

Double Door

Colour Options

Durable, beautiful and guaranteed to last. Our extensive and varied range of Aluminium colour finishes provides inspiration for all property types.

  • White
  • Steel Grey
  • Silver Grey
  • Platinum Grey
  • Pebble Grey
  • Painswick Stone
  • Olive Green
  • Off White
  • Mars Red
  • Obsidian Black
  • Grey
  • Cotswold Green
  • Black
  • Bath Stone
  • Anthracite Grey
full colour range

You choose it,
we’ll spray it.

At Astraseal, our in-house spraying facility means we can offer our full range of glazing products in any colour, allowing customers to meet the demands of any residential or commercial project.

Technical Information

Material Aluminium Polyamide
Dual Colour Yes
WER Rating B
Document L Compliant Yes
U Value 1.4 W/m2K (double glazed)
Glazing Windows / Doors 24mm, 28mm, 32mm, 36mm / 24mm, 32mm
Typical Sightlines 59mm
Side-Hung / Top-Hung / Fixed Max Height x Width 600 x 1400mm / 1400 x 1400mm / 2100 x 2100mm
Doors Recommended Max Height / Width 900mm / 2100mm

Get in Touch

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    Trade Resources

    We have placed all of our resources in one handy location for you to access and download when needed. Here you will find product specifications, install information and guides as well as a variety of brochures and technical documents.

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