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Alitherm Steel Replacement Windows

The leading Alitherm Steel Replacement Windows system comes explicitly designed for Heritage buildings and the replacement of old steel windows.  You can also use these windows to capitalise on the on-trend steel look designs popular with London and South East houses.  Also available is a matching range of steel look patio doors with or without matching sidelights and top lights.

Alitherm steel-replacement windows

Trade Supply Alitherm Steel Replacement Windows.

Our steel look-a-like Alitherm windows enhance traditional and modern houses with authentic, slim steel appearance.  You also get all the security, weather performance and colour choices you expect from aluminium windows. Best of all, they look like old metal windows but at a fraction of the cost.

At Pioneer Trading Company we provide these windows on a glazed basis with the applied glazing bars in a variety of sizes.  As a result, create multiple-pane steel-look windows looking great in black, white or dark grey.  Even better is their suitability for Heritage buildings, subject to Local Authority Approval.

Alitherm Heritage has been designed to offer a modern solution for heritage and renovations applications where the requirement to replace old steel windows is essential.

Choose from a selection of frame profile and sash combinations giving you Stepped, Putty Line and Heritage looking windows.

The Stepped option provides slim sightlines replicating old steel windows. Putty Line uses a chamfered glazing bead for the look of metal putty-glazed frames.  The Heritage range offers all the appearance of classic steel windows used in Art Deco and similar buildings.

Authentic steel-look windows in aluminium.

Our windows come made to order with neatly-cut bars, for a premium look and feel.

  • Alitherm Heritage and Steel Replacement windows suit heritage, listed buildings and general steel-look projects.
  • Suitable for commercial or residential buildings with a “B” Window Energy Rating or 1.5Wm2K U-Value.
  • Thermally insulated frames with durable powder-coated finishes in standard and special colours.
  • An alternative modular suite is available stacked with special couplers and drip bars for an industrial look.
  • Also available as reversible or tilt and turn window opening options.

Alitherm Steel Replacement and Heritage windows come tested to PAS 24:2012 for casement windows and fixed lights only. They are also tested to BS6375 for excellent weather performance. Choose from fixed screens, side or top hung casements, single or double sash windows as well as windows with dummy vents.

Where to use our steel look Alitherm windows.

These slimline, elegant windows are perfect for new extensions, terraced houses, internal steel-look screens and even as feature windows.

Vent sizes up to 700mm wide, and 1400mm high for side hung windows

Top hung windows up to 1400mm wide, and 1500mm high for top hung windows.

With a 47mm frame depth and from 60mm face sightlines, these windows are perfect as a direct fix window, into stone mullions or existing timber subframes.

For traditionally styled windows choose from Art Deco or Victorian styled window handles, or Monkey Tail handles. There is even peg stay option, truly replicating classic metal windows.

Colour options and stock colours.

We make our powder-coated aluminium Alitherm products in any of the standard and special Smart Systems range of colours.  White, black and grey colours available on fast lead times. Or choose any of the non-standard colours such as metallic, dual colour, Sensations and Cotswold textured finishes.

Also available is the outstanding Alchemy anodised effect finishes for contemporary colours and aesthetics. Alchemy offers eight anodised colour matched finishes such as grey, silver, bronze, black or gold. All the style of traditional metal windows with the durability of polyester powder coating.

Our Stock range of colours includes:

  • Standard White Gloss
  • RAL7016 Matt – Anthracite Grey
  • RAL9005 Matt – Black
  • RAL9007 Metallic
  • Standard RAL – contact us for lead times and prices.

Traditional window handles and hardware.

Get a quote today for Alitherm Steel-Replacement Windows.

Five simple steps are all it takes to get a quote for supply only steel-look windows. We then get back to you quickly with a quote and lead time.

  • Your window sizes, styles and designs with mullion/transom dimensions, viewed from the outside.
  • The frame RAL colour or your frame colour inside and out if different.
  • Handle colour and style.
  • Choose any accessories such as trickle vents, cills, trims and add-on sections.
  • Your required glass thicknesses (24mm, 28mm, 32mm & 36mm double or triple glazed units) and whether glazed or unglazed.

Every one of our windows receives a full quality inspection. We deliver to your works or on-site, fully protected and ready to install.

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