Work done in an old hardware store in downtown Granollers. It consisted of the exchange of 10 old wooden windows and single glazing, very deteriorated, with new aluminum with more modern materials, manufacture ourselves. The new structures were made of aluminum with anodized finish, the Stilo-50 series and glass camera 4/12/4 composition, divided into two upper fixed lower two fixed and two sashes in central. The structures were sealed with polyurethane foam sheet lined with neutral silicone sealed. During installation we had to cut a piece of street due to the poor state of the old structures, everything else was as expected. For installation and eviction of old material took two days out of four workers.