Client
Mr. Lewis - Homeowner
Architects
-
Contractor
Derwent Windows & Doors
Window Range
Symphony
Bygone sash windows supply state-of-the-art Symphony windows
featuring FINEO – vacuum insulating glass.
The windows are absolutely amazing, we’re already feeling the benefits of warmth in our home.
Symphony Collection Sash Windows – Featuring FINEO Glazing
The Background
When our Master Installer, Derwent Windows & Doors, were approached by a customer wanting to replace their aging wooden sash windows they also had some additional requests.
They not only wanted sash windows as close to the original wooden frames as possible, but they also wanted energy efficient windows and with the FINEO glass he not only got incredible U-values but excellent sound proofing compared to standard double glazing.
The solution
After discussion with John Samuels, our Bygone Development Manager, Derwent had no hesitation in recommending Bygone Symphony sash windows featuring FINEO vacuum insulating glass, with a U-value of 1.2.
The ground-breaking addition of FINEO to Symphony sash windows lends what are some amazing performance improvements, to an already outstanding product.
The Bygone Collection Guarantee
Sash windows for modern homes
With the cost of living crisis affecting all households, and the importance of conserving energy and being more efficient, homeowners are looking at ways to future proof their homes. One way is with new energy saving technologies, but not at the expense of the period aesthetics of these buildings.
Bygone Symphony sash windows featuring FINEO glass was the perfect solution for this particular project, with all the features of traditional timber sash windows. These features include slim slight-lines; run-through horns; wood grain foil, replicating the texture of timber; patented Timberweld® technology, creating a butt-jointed appearance that looks every part their timber counterparts; and FINEO with the appearance of single glazing, but with all the advantages of modern glass technology.
Would you like to know more about this project? Download the complete case study here.


Bygone symphony featuring fineo
Symphony is already widely acknowledged as the most authentic timber alternative sash window on the market. Symphony’s unique and beautiful features enhance the product in such a way that many who see it up close believe it is constructed using hardwood timber.
With the addition of FINEO’s advanced technology, this amazing product has now taken a giant leap forward, replicating the single glazed appearance of a traditional timber sash window.
FINEO glass is much more than glass technology, it’s pure living comfort. This groundbreaking vacuum insulating glass not only delivers amazing energy performance, it also combines exceptionally high thermal insulation with impressive soundproofing, and unseen durability.
FINEO glass insulates to a level, previously only possible with triple glazing, but is lighter and thinner, letting in more natural light.