“It’ll last a few more years,” every homeowner thinks when they look at their old windows. If the window still looks good from the outside, that does not mean that it has sufficient thermal insulation. Most people are not quite aware of just how much money is literally wasted on poorly insulated windows. If we delay the window replacement for too long, we will certainly save on the wrong side. With GARANT windows you save money and at the same time contribute to environmental protection!