Windows are an integral component of a house for various reasons. They ensure safety, privacy, and protection from the weather and intruders and contribute to a home’s aesthetics. This is why replacing old windows with new ones becomes essential when they get worn out or fail to be useful. However, certain mistakes, like those mentioned below, when replacing windows should be avoided to avoid unnecessary expenses and problems in the future. 1. Not choosing the right glass Since the glass is the most important part of a window, one must select good-quality glass. The window is much less durable and unsafe if the glass is weak. It is, therefore, better to avoid single-paned glass for windows for safety purposes. Secondly, the glass quality of the windows also affects the energy bills. If the glass is not of good quality, it will not insulate properly. As a result, heat during the cold season and coolness in the winter will easily escape through the glass. This will lead to high energy consumption and high utility bills. For this reason, it is essential to consider good-quality glass. From a safety and energy-efficient perspective, triple-glazed glass would be the ideal choice for windows. Besides that, one must also consider coating the window glasses so no one can peek in from outside.