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Just a Quote: Expert advice without the hard sell
How is the energy efficiency of windows and doors determined?
The energy efficiency of a window is determined by the particular features of the window frame, the insulating glass sealed units and the seals between the two. We will cover each element of a PVCu double glazed window to assess what makes windows and doors energy efficient and we can cover this by asking a series of questions: –
The ‘A’ rating of a window refers only to energy efficiency
Consumers ought to be aware that the ‘A’ rating of a window or door refers only to energy efficiency and there are many other factors which should be taken into account to determine the overall quality and suitability to individual situations.
Some companies advertising ‘A’ rated windows are playing on the fact that if a window is ‘A’ rated for energy efficiency, it must be better, in every respect, than other windows that are not. An ‘A’ rated window is certainly better than a ‘B’ or ‘C’ rated window in terms of energy efficiency, but just being ‘A’ rated doesn’t mean it’s the best type of window available. There are many other factors to take into account than energy efficiency when deciding which type of window to install.
Sculptured profiles generally look better than plain or chamfered ones, the quality and performance of locking systems differs enormously and the quality of the installation and customer service are also important. All of these factors will affect the cost of replacement windows, as will the installation company’s marketing and selling costs, other overheads and built-in profit margin.