Free Upgrade Offer during July 2018 only

Wednesday, June 27th , 2018


During July, if you are thinking of investing in our Bygone Harmony or Symphony sash windows, then you can take advantage of a very special introductory offer.   We invite you to upgrade your new Bygone windows to their most authentic status yet by including the beautiful new deep cill in the package of exclusive features that you will receive.

We have listened to customers in the past who have been asking for a deeper cill to mimic the original 3” timber cill and are sure that you will appreciate this development.

Apart from its obvious aesthetic value, the new GRP cill is also stronger than the regular PVC-U cill by a magnitude of 16.8 times making it suitable to be used to replace larger and more unusual windows in an authentic way.

The visual appearance of the cill is indistinguishable from the other sections because all are bond wrapped in the same wood foil as the rest of the windows, thus maintaining the appearance of an original 3” timber cill.

This new development combined with the existing features offered with the Bygone Collection such as the slim meeting rail, integral mullion and patented Timberweld® frame joints will be of particular interest if you are in a Conservation Area and wish to impress the Planning Officers.

This limited time free upgrade offer is available on Bygone Collection windows exclusively through our network of Approved Installers nationwide.

Make contact with your nearest Bygone Installer here   


Accreditations >

Learn why you get better windows because of these

  • BBA - British Board of Agrément Certified
  • ISO 9001:2015 Certified Organisation
  • SBD - Secured By Design Approved Windows
  • British Fenestration Ratings Council - A Rating
  • Energy Savings Trust Recommended Windows
  • CE Compliant Windows
  • All Bygone windows are manufactured in the UK

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