Shutters, architraves and internal finishing

Appearance is everything

If you have sash windows then you’ll want to retain the character and charm that they add to your home.

If it’s been disfigured with inappropriate, ill-fitting designs, you’ll almost certainly want to reinstate the former glory of your home.

Whichever you have, you’ll find the features we use are true to period styles. That’s because we’re passionate about creating the very best sash windows that harmonise with your home, complete with all the design advantages of the 21st century.

Modern homes tend to have sash windows fitted between the external brick work, older properties tend to have the box frames fitted behind the external skin of bricks in a rebate. This means on an older property you'll see very little of the frame, maximising daylight and reducing sight lines considerably.

Replacing the complete frame and having the new frames fitted behind the rebate is more expensive than leaving the frame in situ, however it looks infinitely more authentic because you have taken the trouble to install it correctly. As the majority of period timber windows were locally crafted, there are no ‘standard sizes’ for old sash windows.

True to tradition

The Victorians introduced heavier, stronger glass that demanded thicker sash sections than the slender sections found in the Georgian period. They also introduced horns in the 1850s to prevent the weight of heavier glass breaking the joint of the sash.

  • While cheap sash windows may have 'bolt-on' decorative horns, Bygone sash windows have authentic 'run-through' continuous sash horns – essential for a truly authentic appearance.
  • Traditionally the lower rails of the bottom sash were considerably thicker than the side members in order to carry the weight of the glass. This deep bottom rail on the lower sash was generally 4” or 5” (between 100/120mm) and the sections used produced equal glass panes, creating a balanced feel to the window.

Bygone designs retain both of these important features available on every window in the collection. The deep bottom rail is a standard feature and all Bygone sashes have side sections to equalise the glazing patterns and retain the elegant sight lines of original sash styles.

Beautiful Shutters

Bespoke catches

Cam Catches on sash windows are generally simple latches with fiddly bolts or Brighton latches designed to hold the two sashes together. Historically these have been a weak point in a building’s security.

Unhappy with standard locks that failed basic tests, you’ll find all Bygone sash windows have beautiful, bespoke hook cams. Exclusive to Bygone, they’re designed and specifically developed to make the window look beautiful, while adding enhanced security that is the police preferred standard. We found in testing that two cams locking the same way are less secure than two "handed" cams (a left and a right in a pair). On large windows or where two are needed, you’ll have a pair of handed cam catches to centralise the sashes in the frame, making it look right, perform better and offer more security.

You’ll also find nylon inserts in the keeps to prevent scratching and 'metal on metal' wear. You wouldn’t want your lovely new windows getting damaged every time you open and close them would you? Just make sure the locking pin is fully open when operating your cams.

Some companies will mix and match handles and cams catches so you end up with a mismatch of window furniture. This is not the case with Bygone and in addition to the secure cam catches and recessed travel restrictors, we supply beautiful ring pull handles for the top sash with matching scroll handles to the lower sash. These retain authenticity, come in matching colour suites and there is even a pole and hook available for those typically tall Georgian windows.

Double glazing, Georgian bars and glazing beads

Because the glass used in single glazing was only 3mm thick, the glazing bars and beads were deep and decorative. As the term “double glazing” suggests, two sheets of glass is now common place, however the vast majority of companies tend to use 24mm or 28mm sealed units (made up of two sheets of glass and either a 16mm or 20mm air gap). This means the beads that hold them in (and the glazing bars themselves) are thin and lack any depth or detail.

Bygone Harmony and Symphony use 4mm glass and krypton gas as standard so the sealed units are just 16mm thick. These slender sealed units allow the glazing bar and beads to be much deeper and more detailed, making them far closer to those found on original sash windows.

With surface bars becoming popular you need to ensure they can be used to open your windows. They may look beautiful, but without proper thought and ingenuity they are prone to being pulled from the glass and are rarely guaranteed to stay attached. This is not the case with Bygone…

Because we make an interlocking grid, use a superior tape which bonds bars completely along with our own patented Georgi Clip™, you can be certain that the bars on your new windows will not only look perfect, they will remain bonded to the glass and you’ll be able to use them to open the window.

Constructing sash windows with alternative material often prevents traditional jointing methods. Welded mitred joints often reveal that the material used isn’t real wood. All the joints on the Bygone Symphony have traditional mortise and Tenon style joints. They are all 'butt' jointed, providing an identical appearance to your timber originals on both the sashes and the frame.

All are available in a choice of colours and grained textures making them “indistinguishable from their timber originals”. This is the comment of an inspector upholding an appeal from a disgruntled homeowner whose local authority planning department objected to the windows he installed.

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Premier Partner For September

Derwent Windows & Doors




 Read about the Company here


These sash windows are only sold through our national network of premier partners, all of whom are certified and approved Bygone sash window installers




Locate your nearest premier installer for a free quote


Featured sash windows

  • Non Bar

  • Full Georgian

  • Half Georgian

  • Georgian Varient

  • Centre-Bar

  • Three Light

  • Marginal Border

  • Marginal or 'Off-Set'Three Light

  • Asymmetric

  • True Arch

  • Swept Head

  • Coupled Style 2

  • coupled Style 3

  • 1/3rd split

Sash window styles have changed in the last three hundred years but you can select whichever suits your home best.

Here are a few ideas >

Live in a conservation area?

We can help >

What makes bygone sash windows so authentic?

Find out more >

internal shutters

"we desperately wanted to retain the internal shutters"

"re-assured it was possible we're delighted with the result, beautiful new windows and our lovely old shutters, the best of both worlds!"

Mrs S.B - Oxford

Accreditations >

Learn why you get better windows because of these

  • BBA - British Board of Agrément Certified
  • ISO 9001:2000 Certified Organisation
  • SBD - Secured By Design Approved Windows
  • British Fenestration Ratings Council - A Rating
  • Energy Savings Trust Recommended Windows
  • CE Compliant Windows
  • Member of The Glazing Ombudsman
  • All Bygone windows are manufactured in the UK

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