The steps involve a site survey – one of the most important processes carried out to accomplish the job of energy-efficient doors and windows installation. The survey provides us better insights into what kind of exacting requirements a customer has, and what type of solutions would fulfill his or her requirements best. To make the most of energy-efficient doors and windows, it is necessary to see the actual site, take the specific measurement, and then deliver the solution accordingly. The site survey is a part of the installer’s responsibility, and as one of the top green homes grant window installers, AIS Windows carries it out well.