Vacuum Insulated Glass
Handcrafted in Britain since 2012
Modern Vacuum Insulated Glass Technology for Your Home
Advances in glazing technology means we can now install glass units that boast a thermal performance better than that of standard double glazing and yet are no thicker than single glazing. In fact, our vacuum insulated glass is so thermally efficient it can even outperform a triple glazed unit. A revelation for owners of period properties that have historically struggled to find an energy efficient alternative to single glass panes that planning is happy to approve.
How does vacuum insulated glass work?
Conventional double glazing consists of two glass panes placed apart, with the space between the panes filled with either dry air or an inert gas such as argon. This gas reduces the heat flow through the glass due to its low thermal conductivity. The wider the gap between the panes, the lower the heat transfer, resulting in the overall thickness of double glazing to be no more than 24mm for it to be thermally efficient.
Vacuum insulated glass offers a unique approach where the air between the two panes is extracted, creating a vacuum. This means it can offer a thermal performance greater than triple glazing within its ultra-thin profile. A vacuum, no matter how small, is super-efficient at diminishing heat losses via conduction and convection. Unlike traditional double glazing, the gap between the two glass panes can be reduced considerably, resulting in an overall thickness of 7.7mm.
Why is vacuum insulated glass so popular?
The super slim profile of vacuum insulated glass means it can be easily fitted into all timber windows and doors, allowing the option to retain the original box frames if they are in a reasonable or repairable condition. Maintaining the original historic appearance is particularly important to owners of period homes. Until now, these dwellers often needed to sacrifice thermal performance for the sake of protecting the aesthetic appeal of their property. Vacuum glazing eliminates the need for compromise.
Boasts exceptional thermal efficiencies
It is aptly named insulated glass for a very good reason! In fact, its thermal efficiencies are 8 times more efficient than single glazing and 5% more efficient than a 36mm triple-glazed unit.
High light transmission
The higher the light transmission, the more light that comes into your property. Double and triple glazing have lower light transmission values than single glazing because some of the light is absorbed or reflected by the glass. Vacuum glazing lets more light into your property than both double and triple glazing.
Increasing solar gain
Heat from the sun warms your home, but the type of glass in your windows and doors can affect this. The more glass you have, the less warmth in your property coming from the sun. Vacuum insulated windows allow the sun to heat your property more than triple glazing and almost as much as double glazing.
Optimum viewing
Our vacuum glazing technology has no evacuation port to obstruct the view and has very thin edge seals ensuring maximum vision area.
15-year guarantee
Our confidence in this innovative glazing solution is reflected in the long-term warranty we have assigned to it.
Frequently Asked Questions
One of the most important considerations in these designs is the longevity of the products. We understand that replacing your windows is a costly endeavour and our customers would not want to be replacing the same window every 10 years. We also take traditional designs & styles into account when manufacturing windows & doors, trying
to ensure replacement windows are as sympathetic to traditional styles as possible. Some parts of your new windows may not be the same as your original. This is because we need to combine all of these considerations to ensure we provide the highest quality window, which is exactly what we do.
All the sash windows and other windows and doors that we supply are fully compliant with Document L Building Regulations. New sash windows, casement windows or doors that fit into existing frames are not required to comply with regulations as such work does not affect the structure of a building. Listed buildings and conservation area properties may be exempt from regulations – your local planning authority will be able to advise you if you are unsure.
There are a few key factors when deciding whether to repair or replace your sash windows. Firstly, the condition of the existing frame and sashes is most important. If the timber is in a good condition and there is no rot, then draught proofing is a great option for you. However, if any of the timber has started to deteriorate, then it is often most economical to replace, whether that be just the sashes or the entire window. Another key factor to consider is how important insulation is to you.
Draught proofing a window will limit the cold air coming into your property, and overhauling it will ensure it moves more easily, however most heat loss is through the glass and with a repair, you will still be left with single glazing. If this is a big concern, then replacing sashes or the entire window for a double-glazed version would be best for you. Finally, cost is something to consider. A draught seal and overhaul costs around £400-£700 per window, replacement sashes cost £1,000-£1,500 per window, and a complete replacement costs £1,700-£2,500 per window.
We are members of and certified by FENSA, which allows us to self-certify our installations as compliant with building regulations.
As standard, our sash windows are fitted with a Hardwick hook lock and roller stops.