What is the difference between double and triple glazing?

The extra window pane within the design of Triple Glazing not only enhances heat retention within your home, but also makes the window even more secure within its frame.

Everest Triple Glazing has been awarded A++, the highest possible energy rating. By keeping heat inside, you can save money on your energy bills too. To demonstrate how Everest Triple Glazed Windows compared to standard double glazing, we conducted a thermographic survey to put them to the test. To view the results of this survey click here.

Everest Triple glazing is the:

1. Warmest

Whether the heat generated by the sun or created within the home, the extra pane in our windows helps to maintain that warmth and our new A++ rated windows help maximise energy efficiency.

2. Safest

Every little detail that deters intruders from your home is a bonus. The extra pane makes these windows a lot harder to break, giving you and your family extra peace of mind. What’s more, our windows each come with extensive guarantees.

3. Toughest

Our triple glazed windows feature GrabLock, our most secure lock yet, as standard. Made with the finest materials on the market, their resistance is unparalleled.

What should I look for in a good triple glazed window?

There are a variety of features that make up a good triple glazed window. It is the combination of each of these features that help make Everest Triple Glazing our best window yet.

• Sealed units filled with two chambers of argon gas
Argon gas is heavier than air and acts as an insulator, blocking out noise as well as the cold air.

• Two coatings of low-emissivity (Low E) glass, which keeps the heat inside
Low E is a microscopically thin coating that allows heat past the window from the outside and reflects heat back into the building from the inside. This saves a great amount of energy and will help save on heating bills.

• Low iron glass
The outer pane of an Everest Triple Glazed Window is clearer and increases light transmission from the outside, optimising an additional solar heat gain.

• Warm edge technology spacer bars separate the panes of glass
These are made from a plastic insulating composite material that acts as yet another barrier to heat loss.

• Internal glazing bead
This offers added security as it prevents the removal of glass from outside.

• Tried and tested uPVC profile
We use the same frame profile as our popular double glazed window and, depending on your needs, you can select from a wide variety of our high performing casement range.

What key questions should I be asking?

When talking to a triple glazing installer, it is important to ask the right questions to ensure that the windows are of the highest quality. Make sure you ask the following:

1. Are your triple glazed windows A++ rated?
Do not underestimate the difference between A, A+ and A++. If you take a look at the WER Rating then you’ll notice a score of zero gets an A, a score of 10 gets an A+ and only scores over 20 are awarded an A++. With an A++ window you benefit from more of the sun's free energy as the window allows in more heat than it loses.

2. Are the windows reinforced as standard?
If not, then you will find that you’ll either be charged more to get them reinforced or you’ll end up, once again, with an inferior product. Our windows come fully reinforced and with toughened panes; just one reason we are allowed to say we “fit the best.”

3. What guarantee do you offer for sealed units and discolouration?
Other window companies will often speak only of the windows themselves and ignore other relevant details. Everest offers a Lifetime Guarantee on both sealed units and discolouration, meaning you never have to worry about our windows once installed.

What can I look forward to with an Everest Triple Glazed Window?

At a time when energy prices are going through the roof, fitting your home with new Everest Triple Glazed Windows can improve your home’s energy efficiency compared to standard double glazing.

Triple glazing has been used in colder regions, such as Scandinavia, for decades. Helping home owners endure extreme winter weather. Whilst we might not experience the same severe conditions, we do still suffer from harsh winters and increasing energy prices. 

Insulating other areas of your home, such as the roof, walls and floor can help, but neglecting your windows can result in cold spots and condensation. That’s why Everest Triple Glazing is designed to provide high thermal insulation, keeping your home warmer and saving you money on heating bills.

Everest have been awarded an unprecendented A++ energy rating for our triple glazed windows, and of course, they come with all the security benefits that you’ve come to expect with our products.