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Double and triple glazing vary when it comes to design, function and performance. Double glazing is a sealed unit, consisting of two glass panes with a spacer bar installed between the two. The glazing is sealed together into a single unit, with air and insulating gas trapped in the gap between the two panes. In comparison, triple glazing is made up of three glass panes and features two ‘gas and air pockets’ instead of one. It reduces drafts, and it’s a vast step up from single glazing – which involves a single pane of glass alone acting as a barrier between the inside and outside worlds. As anyone with single glazed windows likely knows, during the cold months, these lone panes can act like chilling units inside a home.
While this is far from an exhaustive list, what we hope it highlights is that double glazing in and of itself isn’t an out-of-the-box product, it’s a technique, and the result of a specific manufacturing method. All three glass packages in the Planitherm range – Energy Standard, Comfort and Comfort Plus – can be used in either double or triple glazing applications. The section of the glazed units should be no greater than 12mm (two layers of glass + cavity). Slim profile double glazing will cost in the region of £600 to £800 to install in an average 6-over-6 sash window. Dependant on the cavity size, glass type and choice of gas fill typical thermal transmittance values between 2.0 and 1.6 W/ SqM/K can be achieved.
Secondary glazing is the perfect solution, protecting your existing windows, improving their lifespan and saving up to 10% more energy than you would with traditional double glazing. With five separate product types to choose from, plus the ability to have custom-manufactured shapes, there is no limit to the aesthetic capabilities of our secondary glazing. Whatever your style of existing window, there is a secondary glazing solution to match.

Maximising energy efficiency efforts is essential within your business so double-glazed windows can help keep energy costs down. Double glazing works to regulate the temperatures inside your building, providing a natural balance of both cooling and insulating benefits, depending on the season. Double-glazing has soundproofing properties which is ideal for premises on busy high streets. The double-layered glass, alongside the soundproofing gases suspended in between, offers impressive noise reduction benefits.

The below table should give you an estimate of how long the installation process will take and the total costs. Tilt and turn windows are usually incorporated into casement window units. The units have a dual-hinge system, allowing them to be opened by tilting inwards from the top of the more traditional side hinge. This makes them ideal if you have young children, as the tilt action prevents anyone from climbing out and having an accident. When buying double glazing, do ensure that BFRC has verified its rating. Designed to fix to your upstand, the Flushglaze Fixed Rooflight has been rigorously tested and certified to many different standards including BBA.

To address this, every sealed unit is built with crystalline desiccant (like what you find in a new bag or shoes) contained in the spacer bar. The desiccant draws the moisture out of the air gap and keeps the internal space between the panes dry. Two panes of glass are sealed in a unit (IGU) separated by a spacer bar. Commercially, double glazing was 'invented' in the US in 1930 by a CD Haven and this was later patented as 'Thermopane' by an Ohio glass company. After this, in the 50s, double glazing began to filter into the homes of Americans. The IGU comprises of two sheets of glass separated by a spacer bar to create an air gap which is filled with an insulating gas.
Made from strong light weight aluminium, it is a slim and discreet, cost effective method of insulating & sound proofing your windows. By fitting our Secondary Glazing you could save around 10% on your heating bills. The Energy Saving Trust states that it is an ‘ideal solution if you are unable to replace your existing windows with double glazing’. Bluemanor Windows is a leading home improvement company, transforming homes in Braintree and across Essex. We supply and install a wide range of double glazed products, including casement windows, sliding sash windows, Tilt & Turn windows, uPVC and aluminium doors. • Triple glazing is more expensive - As triple glazing offers several benefits, it is unsurprising that it comes with a higher price tag than double glazing.
Lifting glass by hand puts unnecessary stress on the pane that can lead to warping and visual defects. We assemble our units mechanically so that panes are lifted evenly using suction cups to ensure no part of the glass is placed under stress to maintain integrity and quality. We construct our units by a robot in an Argon filled chamber to ensure the only thing in our sealed unit is Argon. Other companies drill two holes into the frame and hand pump the Argon which can leave the unit filled with a mixture of air and Argon. By not drilling the frame we maintain the structural integrity and airtight seal of the frame. In the same way, when the warm air from the room meets the internal pane of glass the Argon gas slows the transfer of the warmth from the inside out.

You can fill you home with natural light or maintain your privacy with Endurance’s extensive range of high-performance and decorative glazing options. Customise your windows with a choice of glass and glazing, including obscure, decorative, double glazing or triple glazing. As specialist glaziers, we have over 30 years’ experience manufacturing and installing double glazing with unique and high performance glass.
If measured and fitted correctly, it will essentially form a double glazed solution for your windows - that in turn helps with heat retention, condensation reduction and security. Secondary glazing should always be fitted on the interior side of your window. Triple glazing is generally more efficient at reducing heat loss than double glazing, but it may not always be necessary or cost-effective. In some cases, double glazing may be enough to meet energy efficiency standards, especially if you have other energy-saving measures such as wall insulation. If this applies to you, it’s also worth mentioning that double glazing isn’t where the buck stops when it comes to the best insulative glass options. Technology moves fast, and triple glazing is now a viable option on everything from small windows to large panels.