Slim steel frames,
classic doors and windows, stylish steel

Steel doors & frames.
Classic in a modern jacket.

The industrial style is totally up to date. Both in renovated buildings and in modern projects, slim steel frames, doors, conservatories and balustrades provide a tough elegant look. Simply Steel is the specialist in steel. Check out the possibilities for steel exterior facades, insulated steel facades, steel interior doors and frames and glass steel conservatories on our website.

Insulation steel facades

Simply Steel’s standard steel exterior window frames are equipped with HR++ glass for an insulating effect. Do you want a fully insulated steel window frame with thermal bridge interruption in the steel profile? Then choose Simply Steel Isolated.

Request for quotation?

Send us an email to with:

  • estimated dimensions
  • design
  • indoor or outdoor use
  • preferably with a picture of the current situation

Within 10 working days you’ll receive an offer. After the receival of the offer it’s possible to make a showroom appointment.

Simply Steel tells an authentic story

Steel is strong, durable, crafty, maintenance-friendly and gives a building project extra character

Simply steel is specialized in steek interior- and exteriorconcepts: From slim in- and outdoor frames to steel doors and windows. The products from simply steel are custom made and can be finished in different ways.

View examples

Picture: steel patio, steel doors, steel window frames and steel roof light in one image.

Slim, slender windows and doors made from steel

Back to the feeling of the building style from 1920-1940



Dimension & Drawing

The sizes are measured by our service team or supplied by the customer. Subsequently, the technical drawing is provided and submitted for inspection.


Based on the of the approved technical drawing, the production is getting started.


The steel windows and frames are powder coated and delivered in a desired RAL color.


The pockets are mounted in a correct setup by the client. Installation can take place after floors and walls are finished.

Glass supply

After mounting the steel frame, the glass is placed on the spot by means of glass lime (putty paint look) or glued steel glass slates.

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