Did you know that 20% of your homes heat is lost through the windows and doors? Double glazing can cut heat loss by half, saving you money on fuel bills and reducing your carbon footprint.

What is double glazing?

Window frames contain two panes of glass, with an air filled cavity between them which acts as a natural thermal barrier. Double glazing therefore improves the U-Value of your windows, which measures the rate at which heat is lost through them. The cavity between panes can also be filled with a gas such as argon, which is even more insulating. Sometimes the glass is coated to further prevent heat loss and increase durability.

What are the benefits of double glazing?

Installing double glazing can save you money on fuel bills and could increase the saleability and value of your home. According to the EST, glazing can save you up to £135 a year on your heating bills; it can also cut your home’s carbon emissions by around 720kg a year, significantly helping the environment.

Double glazing is also a good way to increase your home’s security; an extra pane of glass not only makes it more difficult for an intruder to break in but acts as an instant deterrent, providing you with peace of mind. Glazing also provides sound proofing, noticeably reducing noise pollution, especially if you live near a main road.

Many un-glazed homes suffer from damp caused by condensation. This occurs when warm, wet air meets the cold surface of the window and turns to water. Glazing helps prevent this by keeping the inside pane of glass at a similar temperature to the room.

Secondary Glazing

Secondary glazing is an ideal solution for homes where double glazing has been refused planning permission – such as in listed buildings. This involves adding an extra pane of glass to an inside window frame. This is a less costly option but also less effective, saving only around £65 a year on fuel bills and half a tonne of CO2.

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