The SMW Range

Hot rolled mild steel standard window (SMW or F-series) sections have been used to manufacture windows and doors for over almost 90 years, providing Strength, Security and Durability whilst also providing desirable slim lined frames.

As a result of its long established history the series has been installed in of thousands of locations worldwide and continues to be in demand for new and replacement steel windows today. Because the SMW section has a thinner front to back profile (25mm) than the W20 section it makes it an ideal replacement or additional windows in buildings of heritage or in areas of conservation. Additionally many SMW steel windows were produced prior to 1948 when galvanising was first introduced and therefore, by offering these sections, the original windows can be replaced with like for like.

Glazing is available in either leaded lights (lattice windows) or in single or in double glazed units. SMW sections can comply with Building Regulations Part L (2006) if appropriate glazing is used.

  • Fixed Light.
  • Side Hung Open Out.
  • Side Hung Open In Casement.
  • Top Hung
  • Bottom Hung
  • Multi-light combinations
Leaded Lights and Lattice windows

We offer a full design and manufacture service for leaded lattice windows alongside our typical designs of Diamonds, Square, Queen Anne and bordering styles

Single glazing

We offer a full range of modern and historical single glazing and that includes among others Toughened and Annealed Clear Float, Laminated, Horticultural and hand blown and moulded sheet replica cylinder and crown glasses.

Double Glazing

SMW Window and Doors can take double glazed sealed units of up to a maximum thickness of 16mm. Typical specifications of Building Regulations Part L can be met by using a configuration of 4mm clear float – 8 mm Krypton or Xenon filled cavity – 4mm low e soft coat glass.

Double glazing also has the advantage of being able to include other glazing technologies such as solar control, fire resistant and self cleaning glass. Glazing is undertaken after installation in accordance with BS 8000-7:1990

Window Furniture

We offer a full range of Ironmongery to accompany all our W20 windows that are designed to be aesthetically pleasing and sympathetic to the windows with which they’re set. Or if suitable funriture is no longer commercially avalaible it is possible to replicate and match from original peices using traditional methods.  

Existing Fittings – Refurbishment

Where windows are in need of refurbishment or replacement they may already have existing furniture that also requires maintenance. In many instances these can be repaired and refurbished back to their original selves instead of having to source or manufacture exact replicas.  



The Steel Window Company is a Trading style of Fabco Sanctuary Limited.
Registered In England & Wales No. 6552850. Vat No. 931 9093 17
© Fabco 2008 -- Unit 1, Hobbs New Barn, Climping, Littlehampton, West Sussex, BN17 5RE
--Tel: 01903 718 808 -- Fax: 01903 718 903 -- info@thesteelwindowcompany.com--