Replacing your old, inefficient windows with new ones is a matter of smart decision-making. A huge part of it is finding the right contractor for the job. Before you sign on the dotted line, however, it would be helpful if you meet and speak with them first. In doing so, you can gain a full understanding of what this home improvement project entails. It also lets you know more about the prospective installer and the variety of replacement windows they offer. Below are three questions you need to ask during the initial consultation.