Developed in Japan by Panasonic™ and further developed by LandVac™, our vacuum glazing is constructed from two sheets of toughened glass bonded together, leaving a 0.3mm vacuum gap, air is then evacuated, the unit sealed, and advanced technology is used to maintain the vacuum. Under the atmospheric pressure of the vacuum, barely visible micro-pillars are used to keep the two panes of glass apart.

Ultra-thin profiles make vacuum insulated glass perfect for retaining the aesthetics of single glazed heritage buildings, there is no internal double glazing spacer bar, and no visual disturbance from the double reflection associated with traditional double glazing. Vacuum glass seamlessly mimics the appearance of single glazing, making it an ideal solution for listed buildings and conservation areas.

Vacuum glazing gives you a warmer home in winter and a cooler one in summer. The vacuum chamber blocks thermal transmission, providing thermal insulation performance which is 2 – 4 times more efficient than double or triple glazing and between 6 – 10 times better than single glazing.

For a quieter more peaceful home, vacuum insulated glass offers leading noise reduction without using heavy and chunky triple glazing or expensive laminated acoustic glazing.

We use vacuum glass made by LandVac™ who have pioneered the use of toughened (tempered) glass in vacuum insulated glazing. All LandVac™ glass is toughened and certified to British Standards for thermally toughened safety glass.

LandVac™ vacuum insulated glass boasts a robust bonded construction, utilising toughened glass throughout, ensuring a stable product with a lifespan surpassing that of double or triple glazing. Additionally, it comes with a market-leading 15-year warranty.

LandVac™ vacuum glass has a centre-pane U-value of just 0.4W/m2K which allows for lower energy consumption, reducing CO2 emissions and bills. Vacuum glass is lightweight, uses less materials, is fully recyclable, and does not use any energy intensive Nobel gases such as Argon, Krypton, or Xenon.

We would love to discuss your project and help create a the right solution for your needs!

Although trusted for many years in commercial applications vacuum glass is relatively new to the UK domestic market compared to double glazing. These FAQs cover basic aspects of vacuum glass, but if you have more specific questions please get in touch with us.

We use LandVac™ because it is the market leader, and is superior in a number of important ways:

It is toughened as standard. This is really critical, to comply with building regulations where protection against falling is required (eg in doors and in most sash windows).

The thermal performance is fantastic, with a centre pane U-value just 0.4 W/m2K.

LandVac™ has approximately 8 times fewer micro pillars than other types of vacuum glass and the pillars themselves are more subtle semi transparent grey in colour.

LandVac™ is available in larger sizes (up to 1.5m x 2.5m).

The acoustic performance is extremely good.

Vacuum glass units are currently only commercially available in standard clear glass. However, we can integrate vacuum glass with other types of glass to provide the complete range of glass options offered with traditional double glazing, forming a sealed unit. For instance, we can incorporate vacuum glass on the interior side of the frame and obscured glass on the exterior, mirroring the configuration of a traditional double glazing unit. Alternatively, we can apply a frosted film to vacuum glass.

If you have already obtained planning approval for slimline double glazing, you cannot switch to vacuum glass, as the construction of vacuum glass and slimline glass differs. Technically, you would need to apply for a ‘variation of condition’ to your existing planning permission. Depending on your individual circumstances, it is likely that planners and conservation officers would view this variation favourably. In our experience, they actively prefer vacuum glass over slimline glazing. You should discuss your specific needs with us so that we can provide better advice on the appropriate course of action.

We utilise LandVac™ Enhance Heritage as our standard, which features no visible evacuation port or circular getters. Instead, there is a smaller 3mm getter line towards the edge of the unit. Additionally, we incorporate a deeper rebate in the timber of the sash. This design ensures that both the plugs and getters are concealed behind the timber, thereby preserving the aesthetics without compromise.

Vacuum glass tends to be more expensive than traditional double glazing but more cost effective than slimline double glazing. Keep in mind that the initial cost of vacuum glass may be offset by potential long-term benefits, such as improved energy efficiency and insulation, which could result in lower heating and cooling costs over the lifespan of the product.

In general, high-quality vacuum glass units are designed to have a long lifespan, exceeding that of traditional double-glazed windows. Many manufacturers provide warranties for their vacuum glass products, which can range from 10 to 25 years or more. As technology and manufacturing processes continue to advance, it’s possible that the lifespan of vacuum glass could improve over time.

Maintenance is generally low; regular cleaning is usually sufficient to keep vacuum glass in good condition.

Yes, vacuum glass is designed to perform well in various weather conditions, providing effective insulation in both hot and cold climates.