With almost 90% of UK homes already having double glazing, many of us are considering if triple glazing might be the the next step in improving our homes. With so much emphasis on the energy efficiency of our homes, it seems like a natural progression to install windows that offer the very best in energy saving – but are they really worth that extra expenditure?

How much more will triple glazing cost?

Standard double glazing units will usually cost between £2,000 and £3,000 to install for an average terrace home, while triple glazing might increase that bill to £5,000 or more. In general triple glazing will cost around one third more with a standard £350 double glazed window increasing in price to around £500. So, as you can see, the choice to move to triple glazing needs to be carefully weighed up.

Energy efficiency and cost savings

According to the Energy Saving Trust home owners that switch from single glazing to double glazing can save around £160 per year on their energy costs. This would allow the investment in the windows to be paid off over 12-13 years. Not too bad when you consider that these windows will usually last for upwards of 20 years.

The payback time on triple glazing with its triple A rating is not thought to be that much improved. In fact triple glazing offers around a 2 degree interior difference in your home – not necessarily enough to cause a huge improvement in energy bills. The main issue is that triple glazing units are still installed into essentially draughty homes and they will work better in new homes with excellent insulation levels.

However there are a number of other important advantages.

Triple glazing is known for being acoustically superior to double glazing and will offer much improved noise reduction. Making it a great choice for homes on busy roads.
If you are building a Passive Haus or energy efficient project, triple glazing is the only way to match window u-values with the walls.

Triple glazing offers better security as it is virtually unbreakable. Some double glazing units also have an exterior bead allowing the panes to be removed easily.
That extra 2 degrees can make all the difference in places where the temperature is moderate. In terms of pure comfort, triple glazing may be ideal.

So it seems that if your home is well insulated and you wish to add to that effect, triple glazing could be a great investment. While the financial rewards may not be as great as you might think, it is a perfect way to reduce your carbon footprint and to ensure a peaceful night’s sleep for the whole family.