Exclusive to Enviro, Quattro is our advanced quadruple glazing system, created for homeowners who want the very best in comfort, insulation and acoustic performance.
With four high-performance panes of glass, a beautifully engineered build and exceptional thermal efficiency, it is designed to outperform ordinary double glazing and move well beyond what most people expect from a window.
If you are looking for a premium window that helps keep more heat in, cuts outside noise dramatically and delivers long-term value, Quattro is in a class of its own.
For many homes, double glazing is still a solid choice. Triple glazing takes performance further. But Quattro is for homeowners who want to go beyond the standard market and invest in something at the top end of window technology.
This is not just another glazed unit with an extra pane added in. The Quattro Window is a purpose-designed system built to deliver a higher level of thermal performance, a quieter indoor environment and a more refined sense of quality throughout the home.
And while it is a premium product, it is still remarkably competitive when compared with the prices often charged by the big national glazing chains for far more ordinary window systems.
The Quattro Window has been developed by Enviro to deliver outstanding thermal performance.
With four panes of high-performance glass working together as multiple insulating barriers, it helps reduce heat loss to an exceptional degree.
Its quoted performance is so impressive that tests have suggested it can approach the thermal resistance of a standard insulated house wall.
For homeowners, that means a warmer, more comfortable home and the potential for significant long-term savings on heating costs. It’s a stunning window and is available in a huge range of sizes, right up to 3 metres high. Perfect for bespoke housing projects.
Quattro is not only built to keep warmth in. It is also highly effective at reducing unwanted outside noise. If you live near a busy road or anywhere with frequent traffic and street noise, the difference can be striking.
Customers have commented on how much more peaceful their homes feel after installation. One even joked that their children could no longer hear the ice cream van outside!
Quattro is designed as a serious high-performance window system. It is strong, substantial, beautifully made and built for long-term reliability. This is not a compromise product and it is not aimed at the budget end of the market. It is for homeowners who want to invest in quality and feel the difference every day.
One of the biggest surprises for many customers is that Quattro, despite being a true premium system, can still compare very favourably with the pricing of standard double-glazed windows sold by major national brands.
That makes it a very compelling option for homeowners who are already planning to invest in new windows and want to step up to something that performs far better and looks fantastic, rather than settle for an ordinary window system from a company they assume offers premium glazing systems.
Put simply, Quattro gives you the chance to buy a far more advanced window system without stepping into the sort of pricing many people assume comes with top-end performance.
The Quattro Window has been designed for people who want more than the standard specification commonly found in the wider glazing market.
With four panes of glass, advanced insulating cavities and a build quality focused on real-world performance, Quattro offers a clear upgrade in the areas that matter most:
If double glazing is the mainstream option and triple glazing is the next step up, Quattro is the high-performance choice for homeowners who want the best available level of everyday comfort and efficiency.
Quattro is not something you will find anywhere else. It is an exclusive Enviro system, created for customers who want access to a more advanced type of window than the standard options widely available on the high street.
That exclusivity matters. It means you are not buying a generic product with a fancy name attached (common practice with large glazing chains). You are investing in a distinctive, premium system that has been developed, refined and fitted by a specialist company with a reputation for quality.
The best way to appreciate what makes Quattro different is to experience it in person.
At Enviro’s showroom, you can see the build quality up close, compare styles, finishes and colours, and speak to our team about whether Quattro, triple glazing or double glazing is the right fit for your home and budget.
Independent field testing and expert review highlighted Quattro’s remarkable thermal efficiency and impressive ability to reduce outside noise.
Quattro’s performance is not based on marketing claims alone. Its thermal qualities have been assessed in field testing and reviewed by Rod Appleyard, a respected independent expert in the fenestration sector.
Rod Appleyard is a qualified thermographer, Chartered Building Surveyor, Fellow of the Royal Institution of Chartered Surveyors and Fellow of the Chartered Institute of Arbitrators. He has extensive experience acting as an independent expert surveyor, adjudicator and arbitrator within the glazing and fenestration industry.
In his assessment of the Quattro system, he highlighted the remarkable thermal and acoustic potential of the design, describing it as performing at a level beyond what most people would expect from a conventional window system. His review noted the possibility of achieving extremely low U-values and exceptional sound insulation performance when compared with more standard glazing configurations.
That independent input matters because it helps demonstrate that Quattro is not simply different in theory. It has been examined in real-world conditions using calibrated thermal imaging equipment and benchmarked against more familiar double and triple-glazed setups.
The thermal comparisons examined several glazing arrangements in similar conditions, using calibrated equipment and thermal imaging to assess external surface temperatures and heat loss characteristics.
The testing compared:
The aim was to see how each setup performed in relation to heat retention and how closely the external surface temperature moved towards that of the surrounding wall construction.
The testing indicated a clear progression in thermal performance as the glazing specification improved.
Standard double glazing showed a reasonable level of insulation, but the higher-performing units demonstrated a noticeable reduction in heat loss. Triple glazing improved performance further. The quadruple glazed Quattro configuration then pushed this even further again, producing results that suggested an exceptionally high level of thermal efficiency.
In practical terms, the testing supported the case that Quattro can significantly reduce heat transfer through the glass when compared with more standard double-glazed units. It also reinforced the wider argument that a much higher-performing window can contribute meaningfully to a warmer home and potentially lower energy use over time.
For homeowners, thermal performance is not just about technical figures. It affects how warm rooms feel, how hard your heating system has to work and how much comfort you get from your home in colder weather.
A window system that loses less heat can help:
When combined with Quattro’s strong acoustic properties, this helps explain why it appeals so strongly to homeowners who want a premium upgrade rather than a basic replacement window.
Specification and Parameters:
Cloud base low and without break, air temp 19.5 °C, wind speed 1.4mph
Internal temperature 25 °C (lounge radiator located under window)
Double-glazed unit 4mm Pilkington K/16mm air/4mm float, external surface temp 23 °C, house wall temp 18.7 °C.
Conclusion House 1: not bad, but not good. This unit relies upon radiation gain to give it the thermal insulation qualities.
Cloud base low and without break, air temp 19.5 °C, wind speed 1.4mph
Internal temperature 25 °C (lounge radiator located under window)
Double-glazed unit 4mm Planibel A /16mm air with argon/ 4mm float, external surface temp 20.7 °C, house wall temp 18.7 °C.
Conclusion House 2: not bad, getting better. We now have a 2.3 °C drop in temperature from inside to outside. This is how much difference gas makes to a unit.
Cloud base low and without break, air temp 19.5 °C, wind speed 1.4mph
Internal temperature 25 °C (lounge radiators located under windows)
It is to be noted that this house not only had been subject to cavity wall insulation but also insulation containing properties type render.
Triple-glazed unit 4mm Planibel A /8mm air with Krypton gas/4mm Planibel A/8mm air with Krypton gas/4mm float, external surface temp 18.6 °C, house wall temp 18.7 °C.
Conclusion:
From a starting point of 23c, it can be seen that the benefits are between 20% and 25% if this is then transposed to the cost of energy. House One could save up to 25% by installing triple glazing with Krypton gas.
Having now identified the graduation and the differentials that each variation of the insulating unit gave, it was now part of the experiment to identify if this reduction would be as profound with quadruple glass as found in the previous configurations.
To achieve this, a bottom pane was removed from one window in house 3, and it was re-glazed with a quadruple unit. The room was allowed to build back up to the required heat of 25 °C, and the unit was allowed a period of time to absorb room heat (1hr). The frame into which the glass was installed was a Rehau 702 section with alternative beads used. This ensured that, as near as possible, a real-world scenario was in place. Having set the test unit in place and allowed environmental
impact to level off, the glass was tested in the same manner.
The technical makeup of the glass was: 3mm Planibel A/8mm air with Argon/3mm Planibel A/8mm air with Argon/3mm Planibel A/8mm air with Argon/3mm float.
As can be seen, this not only has bulk but also weight, of which I shall discuss later.
What did the thermal camera tell us? The figures speak for themselves: a surface temp of 17.7 °C was shown and at one point this dipped to 16.2 °C. Undoubtedly, this showed a significant difference from House 1, and this would reflect in a possible saving of up to 31% on energy costs by cutting heat loss through the glass as opposed with a normal double-glazed unit.
Quattro can make a surprising difference to your energy bills and the peace and quiet of your home. And it’s available at the price of a normal quality window.
The Quattro Window is available in a stunning range of styles, finishes and colours, giving you premium performance without compromising on appearance. Visit our showroom to see the quality for yourself and find the perfect look for your home.
Quadruple glazing uses four panes of glass rather than two or three, creating additional insulating cavities within the sealed unit. That extra build-up helps reduce heat transfer more effectively and can also improve acoustic performance, making it a more advanced overall glazing specification.
The Quattro Window has been associated with exceptionally low U-Values, with quoted figures around 0.35 W/m²K. In practical terms, that places it well beyond standard double glazing and ahead of many triple glazed systems when it comes to reducing heat loss through the window.
U-Value measures how readily heat passes through a building element. The lower the U-Value, the better the insulation performance. When comparing glazing systems, it is one of the clearest ways to understand how effectively a window is likely to retain heat within the home.
By using four panes of high-performance glass and multiple insulating spaces, Quattro slows the transfer of heat from the inside of the property to the outside environment. That can help maintain a more stable internal temperature, reduce cold spots near the glass and improve overall comfort during colder months.
A standard argon-filled double glazed unit can offer solid thermal performance, but Quattro is designed to go substantially further. With additional panes and insulating chambers, it can achieve markedly better heat retention and significantly lower overall heat transfer through the glazed area.
Yes. The multiple panes of glass and additional cavities help reduce the transmission of outside sound, making Quattro particularly effective where traffic noise, street noise or other external disturbance is an issue. For many homeowners, the acoustic improvement is one of the most noticeable benefits.
The testing indicated a clear progression in performance from standard double glazing through to higher-specification glazing systems, with the Quattro configuration producing the strongest thermal result of those compared. The findings supported the view that Quattro offers a substantial reduction in heat loss through the glass.
That is one of the more striking claims associated with Quattro. Testing commentary suggested that, in the right configuration, its thermal resistance could move surprisingly close to that of a standard insulated wall, which is highly unusual for a window system.
Yes. Enviro can talk you through the practical differences between double, triple and quadruple glazing in terms of insulation, sound reduction, specification and likely cost, helping you choose the option that best suits your home and priorities.
Enjoy exceptional warmth, impressive sound reduction and premium window performance for far less than many people expect.
