Home Blog Double Glazing Or Triple Glazing – Which Will Be Right For Your Home?

Double Glazing Or Triple Glazing - Which Will Be Right For Your Home?

Most replacement window suppliers give you the option of having your new windows triple glazed, as well as double glazed.

This gives you plenty to think about, chiefly, which of the two should you opt for, double or triple glazed windows?

It’s a decision that you mustn’t rush, and should only make once you have made a full assessment of both possibilities. 

Mitchell Glass can help with that by giving you some insight into what double glazing and triple glazing offer in a series of important areas:

Energy efficiency

The U-value of a window tells you all you need to know about its thermal performance – the lower the U-value, the greater the standard of thermal efficiency provided.

On average, a standard UPVC triple glazed window has a U-value of 1.0 W/m²k, making it 40% more thermally efficient than most A-rated windows. Just so you know, all windows from Mitchell Glass are A+ energy rated as standard.


In their promotional material for triple glazed windows, some window companies claim that triple glazing is great for shutting out noise from traffic, and alike. It certainly can be, but it needs to be specified correctly in order to do that.

A triple glazed window must have three panes of different thicknesses, rather than with the exact same thickness. The cavities also need to have varying thicknesses, otherwise it won’t make much difference.


Windows should keep your home secure, it’s one of their most important roles. Whether constructed from UPVC or aluminium, the latest double and triple glazed windows have various secure mechanisms within them. So they can be trusted to protect your property.

This includes a multi-point lock, and they are glazed on the inside to prevent anyone being able to remove the glass from outside of a house. The additional layer of glass that comes with a triple glazed window could be viewed as giving you extra security.


Triple glazed windows are more costly than double glazed windows, but they can help you save more money on energy, justifying their more expensive price tag.

Get some expert advice on double glazing and triple glazing from the team at Mitchell Glass. Our advisors really know their stuff and can be contacted here in a number of ways.

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