Double Glazing Vs Triple Glazing

Last updated on November 3, 2023

Both double glazing and triple glazing can help keep the heat in, improve your home’s energy efficiency and ultimately lower your heating bills. But how do these options compare and why might you want to opt for one or the other? Let’s take a look at the pros and cons and costs of double and triple glazing!

Pros and Cons of Double Glazing

Starting with double glazing, this involves the use of two panes of glass within a window, making it (and triple glazing) a form of insulated glazing.

Naturally with two panes of glass, double glazing can keep the heat in better than single glazing. In fact, double glazed windows are approximately 75% to 80% better at keeping the heat in. Of course, one clear disadvantage of double glazing is that they will not keep the heat in as much as triple glazing.

With that said, double glazing is less expensive than triple glazing. On average, double glazing costs around £250 to £850 per window depending on the type of window being used. When we say type of window, we are referring to the material of the frame used.

Lastly, it can be argued that double glazing offers more value for money since going from single to double glazing offers a greater leap in improved household energy efficiency than switching between double and triple glazing.

Pros and Cons of Triple Glazing

Moving on to triple glazing, as you’d imagine, these windows feature three panes of glass, adding extra energy efficiency.

Triple glazing is 30% to 50% better at keeping the heat in than double glazing. So, while this is not as impressive a leap as going from single to double glazing, it puts triple glazing in a clear superior position over double glazing.

Of course, one of the key downsides of choosing triple glazing is the cost. On average, triple glazed windows cost about £400 to £1,100 per unit. If you have the money, triple glazing is a better option but for those on a more limited budget, as mentioned double glazing arguably offers greater value for money.

Should I Opt for Double or Triple Glazing?

Whether you should go with double or triple glazing will depend on a range of factors such as your budget and the extent to which you wish to improve your home’s energy efficiency.

By looking at much you have to spare, you should carefully weigh up both options. You may want to even seek quotes for specific double and triple glazing jobs so that you can compare those actual quotes before making a decision.

Whatever the case, switching to double or triple glazing from single glazed windows will help your home keep warmer for longer, lowering your heating bills and, in turn, potentially reducing your carbon footprint.