Bygone Collection sash windows have several important benefits when it comes to your home. They help you retain the value of your property, offer increased ventilation and thermal efficiency, as well as added security features to bring peace of mind.

Avoiding inappropriate plastic casement style windows is essential to a good property upgrade. It’s tempting to save a few pounds with cheaper fenestration, but this invariably spoils the character of your home. De-valuing it this way surely far outweighs any short-term savings.

Standard double glazed windows often look flat, lifeless and boring. Worse still, the shiny plastic implies ‘cheap double glazing’ to the neighbours.

Investing in sash windows brings you immediate and enduring pleasures. Retaining the classic appearance to perfectly complement your home, you’ll live with something beautiful every day. You’ll also be making a very sensible addition to your biggest asset.

Windows as safe as houses

Old or young alike, it’s important you feel secure in your own home, but windows can compromise your security if they fail to meet necessary standards.

Older window latches can often be easy for an intruder to flick open with a knife. Many modern sash windows only have keeps screwed into the glazing bead rather than the steel reinforcement, making it simple and quick to force them open for those who know what they are doing.

You can be confident your new Bygone sash windows will be as safe as houses because we use steel claw cam catches and all the window furniture is screwed directly in to the steel reinforcing. We were also the first company to attain accreditation from the police and even we helped write their security standard for sash windows, a standard that all designs are now tested to.

The secret to great sleep

Air quality is essential to a peaceful night’s rest, as good ventilation means you are more likely to benefit from deeper and more rejuvenating sleep.

Building regulations require a minimum of four air changes per hour but sometimes as many as 12. In tests, we’ve found that the average casement window, despite being FENSA compliant, provides less than three air changes,  in fact casement windows will actually trap stagnant air in the room.

Fortunately, sash windows offer far better circulation naturally, creating airflow; fresh air is drawn in, expelling stale air and removing harmful airborne stagnant toxins without the need for unsightly trickle vents.

Staying snug

With energy prices as they are, we all want to conserve energy and reduce our fuel bills. Typically, original or older sash windows rattle and are too often jammed or painted shut. Ill-fitting sash windows let in air and allow heat to escape quickly, so modern, more efficient versions play a crucial part in eliminating nasty draughts.

We all know thick, well-insulated curtains and shutters help improve heat loss through a window. Single glazing loses 5.6 units of heat through each metre of glass, every hour, for every degree of temperature.

For example, the average window 4’ wide x 8’ high, (1200 x 2400) has nearly 3m of glazed area. If it’s -5° outside and 18° inside you’ll be losing 371 KW* of heat every hour through this one window.

Bygone A rated sash windows are energy positive, meaning they gain more heat than they lose.

Designed to capture solar energy (especially when the sun is low in the sky during the spring and autumn), keeping the heat locked inside your room means you’ll conserve more energy, use less fuel and have a warmer room.

Our designs are unique in offering both strength and warmth; they are both A rated and Secured by design as standard. That’s because we use Krypton gas and fully steel reinforced sashes. You’ll compromise on cost, but not on strength or comfort.

*(2.88m x 5.6m units x 23 degrees)


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




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What makes bygone sash windows so authentic?

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“The windows have now been in a month or two and have made such a difference to the warmth of our house"

"I wouldn't hesitate to use this company again in the future”

Mr D.R - Reading

Premier Partner For October

Cherwell Windows 




Read about the Company 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

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