Steel Window Replacement From Jennyfields

Jennyfields Windows in Surrey are now in their 32nd year of trading. Specialising in glazing works involving a variety of glazing materials, their expertise is steel window replacement, specifically Crittall windows.  They achieve this using their own unique suite of Slimline aluminium profiles.

Crittall Replacement Windows
Traditional and archetypal British Homes such as this require expert window replacement and more importantly a Crittall Replacement Window that will retain the original look of the property.

A Crittall Steel Window Replacement with an A Rating.

Where many windows will comply with an energy rating of C, the aluminium crittall replacement windows from Jennyfields will achieve an A rating.  Using polyamide thermally broken sections and the latest generation double glazing units, Jennyfields Crittall Replacement windows will meet the same rating as most pvcu windows in providing homeowners with an A rated window yet with all the slim sight lines of strong aluminium.

Additionally Jennyfields can offer a steel window replacement product that not only matches the original steel frames but is also suitable with the more modern W20, W30 and W40 systems.  This product as well as offering the A rating will significantly reduce condensation of the old single glazed steel windows as well as enhancing the property with multi point locking.

Jennyfields offer a bespoke installation service, believing that the wrong crittall replacement window can devalue a property.  Here they provide an individual design service, giving the customer a choice of materials, window colours, glass and hardware that is guaranteed to enhance the look of a property.

We pride ourselves on our attention to detail and our period finishes using antiqued leaded lights as well as aged brassware.

Jennyfields have been replacing old crittall steel windows with their exclusive system throughout the South East of England with many installations already successfully carried out.

If your property has existing timber frames, the Jennyfields steel replacement system can easily be fitted.  The advantage of retaining the original frames (assuming they remain in good condition) is that internal decorations are undisturbed. Alternatively they can be fitted into new oak or hardwood frames.

Slim sight lines are what steel windows are renowned for.  The Jennyfields system uses a 24mm thick sealed unit with a bead that retains the original putty line look of the original window using Jennyfields’ own specially developed sloping glazing bead.

jennyfields window specialists
Jennyfields are experts in steel window replacement.

If you are considering replacing your existing steel windows, contact us for more information on the Jennyfields exclusive Crittall Replacement System.

Published on April 9, 2013

Reader Interactions


  1. Timothy Freeman says

    Hi i am interested in some w20 style aluminium doors and sidelights with slim nightlines and angled putt lines in the kent area

    Tim Freeman



    • Nick Dardalis says

      Hello Timothy, thank you for your question. If you’d like to get in touch via our contact form, happy to put you in touch with some local supplier. The Smart Systems Alitherm Heritage 47 system is excellent as a steel look door and window and is one of the most authentic looking products on the market presently and I understand they still do the window with a W20 style aesthetic.

      Hope this helps
      Kind regards