Passivhaus Gruber

Well-fitted, quality windows can greatly improve the energy efficiency of your home. Here’s how to choose wisely Windows are where our homes often lose the most heat, so it makes sense to ensure they’re as energy efficient as possible. As part of our Sustainable Renovation Planning guide, we asked the experts how to choose and install energy-efficient windows, what to know about modern standards of window efficiency, and which other factors to consider before fitting new glazing.