Double-glazed windows with low emissivity (low-e) glass, insulated frames, and a high energy rating are the most energy-efficient windows in the UK. They reduce heat loss, lower energy bills, and help to lower carbon emissions.
The time it takes to install windows depends on various factors, such as the number of windows, their size, and the complexity of the installation. Window installation can take 1 to 3 days on average, but it's best to check with your installer for a specific timeline.
Some signs of poorly-installed windows include air leaks, drafts, difficulty opening or closing, water damage, condensation, and increased energy bills. If you notice any of these signs, having a professional check your windows is best.
There are two primary methods for installing windows: