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Double Glazing FAQ

Have a question about double glazing? Take a look at our frequently asked questions below.

Q. Is double glazing an efficient choice?

Double glazing consists of two panes of glass that are separated by a layer of air. Compared to single glazing, double glazing has many benefits such as:

  • Keeps warm air in
  • Saves money on heating bills
  • Noise reducing
  • Heightened security

Q. What are the advantages of triple glazing?

Windows that are triple glazed have a third pane of glass. As a result, they insulate your home even more, and also offer higher levels of noise reduction. Some window manufacturers use different types of gas in between the panes of glass which can increase the prevention of heat loss further. 

Typically, triple glazing is more expensive than the double glazing option. As a result, it may be wise to only have them fitted in the coldest rooms or rooms that are exposed to increased noise pollution. 

Q. Will double or triple glazing save me money on my energy bills?

Double or triple glazing insulates your home more, keeping the heat inside for longer. As a result, you can save money on your energy bills. Whether you save money on bills or not, your home should feel warmer inside. 

Q. What are double glazing energy ratings?

Double glazing energy ratings work in a similar way to appliance energy ratings. The scale runs from A++ (the highest rating) to E (the lowest rating). 

Nowadays, building regulations require all newly fitted windows to be at least a C grade. 

Q. Can double glazing help reduce noise?

Due to the fact that double glazing consists of two panels of glass, it should reduce more noise than single glazing alone. Furthermore, triple glazing will enhance noise reduction more, acting as an even better soundproof barrier.

Q. Will double glazing cause condensation or damp?

It is possible that double glazing will cause damp or condensation in the home. This is because double glazing is energy efficient, therefore, it keeps the warmth in and is draught free. 

Older homes were built to breath, as a result, the addition of energy saving measures can prevent any moisture in the air from escaping.

In winter this can cause a problem, because warm air with no way of escaping, will come into contact with cold glass and cause condensation.

There are ways to overcome this problem, such as ensuring trickle vents are present in the frames of your new double glazing. In addition, it is worth considering including the installation of some smaller windows which you can open when required.


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