Domestic Steel Windows & Doors

Introducing Domestic Steel Windows and Doors

Steel windows and doors have been installed in buildings since the 1890’s and form the character and face of a home. The slender sections of a steel window or door help to contribute charm, style and elegance to a property. We find that many home owners are looking to find sympathetic replacements of their existing windows and doors; with the modern benefits of thermal performance, security, durability and ease of maintenance.

This is why the Steel Window Association, in conjunction with its members has helped to evolve the steel window into its modern day form.

Today’s steel window is manufactured using sections from the W30 suite of profiles. This evolution of the steel sections allows the windows to be double glazed with thermally efficient units. This helps contribute to a BFRC ‘B’ energy rating.

Traditional Steel Windows

Traditional single glazed steel windows can still be manufactured using the SMW range of steel profiles. These window profiles are the basis of the ‘standard window’ that is installed in many homes throughout the country.

If your home is in a conservation area, is listed or of local historic value, then you may be required to match your existing window dimensions and specification exactly to conform to the conservation officer’s requirements. Our members are able to offer this service should it be required.


In some instances, a homeowner may require that existing steel windows and doors remain but that they are refurbished in some way.

Some of our members are able to help with this. Services range from basic ‘ease and adjusting’ where the existing opening windows/doors remain in situ and are ‘eased’ so that they open and close better, through to full refurbishment where the windows/doors are removed and taken back to the factory for shot blasting, galvanizing, powder coat finishing, servicing, re-glazing and re-installing.

Steel Window and Door Benefits

Hot dip galvanizing ensures that the window or door will be free from rust and helps to increase their lifespan.

Polyester powder coating means that a steel window or door will not need to be painted for at least twenty years. A wide range of colours is available and can be specified using the RAL colour chart system.

Opening windows can be hinged on the side or the top and come complete with ironmongery that can be sympathetic to the originals or with a more modern look.

Glazing decoration can be specified so that the window retains an existing leaded, Georgian or modern glazing appearance. The glass units are made up of soft coat glass which helps retain the heat in a home while, low ion glass which draws the suns rays through the glass in the winter months, Krypton gas helps increase thermal insulation as well as increasing sound insulation and a warm edge spacer also helps increase thermal insulation.

Doors are manufactured from either W20 or W40 steel profiles and complement the steel window in profile and style. Single and double (French) doors are available and can be manufactured to very large dimensions.

Doors are available with traditional mid rails and kicking panels or with large full height glass panes. Locking mechanisms can be traditional mortice locks with lever/lever handles and shoot bolts or concealed multi locking with an internal handle.

All windows and doors are manufactured to bespoke dimensions and designs so customers can specify exactly what they desire.

The Steel Window Association and its members are constantly looking to evolve this system to help meet the ever demanding building regulation changes. If you need any further information please look on our ‘profile drawings’ section or contact our members.

Specifier’s guide

The specifiers guide is a technical document published for architects and designers. It contains our members range of products, section details and technical specifications.

Find a member

Our members are more than happy to discuss a project with you and then provide pricing, design details and specification criteria. Please click on the link above to locate a manufacturer or installer that can carry out a project in your area.