Older buildings often have single-glazed windows. Upgrading to double-glazing can bring a number of benefits: it is an investment that will be returned by the reduction in your energy bills, and it has many advantages to offer. While the name suggests that double-glazing has two panes of glass, in reality, there are usually four panes (two outer layers of glass and an inner layer) separated by airspace that can be filled with inert gas or left as a vacuum. It is a technology thought to improve buildings’ ability to save energy.
Decreased Energy Bills  Windows with double-glazing are far superior to single-glazed ones. The movement of heat through glass is slowed down by the second pane, making it harder for heat energy to cross the gap. This results in reduced heat loss and gain, keeping you warm in winter and cool in summer. You will not need your heating or cooling systems as often, so your bills will be lower.
Sound-proofing Double-glazing windows provide more sound insulation than single-glazed windows, so less noise penetrates a home that has double-glazing installed. This is especially beneficial for people who live in neighborhoods or near airports that are noisy. A house with double-glazing provides an escape from the outside world’s loud and chaotic atmosphere. Better SecurityDouble-glazed windows are stronger and more secure than single-glazed windows. Both panes of the glass must be broken before an intruder can enter your house. They are also very difficult to force open from the outside, meaning they provide more security than single-glazed windows. Increased value of your house. Double-glazed windows and doors boost the value of your home. Compared to single-glazed windows and doors, double-glazed ones offer better insulation, soundproofing, and security. These features make your house a safer, more comfortable place to live. Reduced Interior damage Furniture and carpets placed close to windows fade in sunlight, becoming damaged by exposure to UV rays. Double-glazing windows reduce the amount of sunlight and especially UV rays from coming into the house, reducing the exposure of furniture and other possessions, which are then protected against damage.
