W20 Metal Windows And Doors

We are able to replace the popular W20 steel window profile with a modern warmer thermal aluminium version, which not only replicates the originals good slim looks but we are also able to offer both 24mm and 28mm thick double glazed sealed units, giving a thermal U value of 1.6.

Available in all RAL colours, and with excellent lead times, our W20 style windows and doors are perfect for any project involving schools, workplaces and industrial renovations where original looks and energy ratings are important.

Here at Jennyfields, we pride ourselves as the experts in steel window and door replacements.



Into Existing Frames

New Art Deco

Period Finishes

Get In Touch

For all your queries, either visit our showroom in Farnham, which is just off the A31 Hog’s Back roundabout or please call us for an informal, initial chat.


Unit 11 Century Farm, Green Lane,
Badshot Lea, Farnham, Surrey, GU9 9JH
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01252 315 888