In addition to the certificates of conformity, window units must be accompanied by detailed technical documentation and assembly, which facilitates the selection of the most suitable product and the process of installation. Rule two: Certify and Diversify their services. Quality certificate can be accompanied not only products but also services companies, assembly or installation of window units. As a rule, the document provides a window profile producer. This is an additional guarantee of quality installation work. Evidence confirms that processes the assembly window assemblies satisfy the entire list of requirements for quality and accuracy of the mutual arrangement of structural elements imposed upon them by gost, and qualification staff have the appropriate level.

It should be noted, and the fact that such certificates are issued to processors only after a full audit by representatives of the manufacturer of the profile. Assessment subject to processes of window production, manufacturing facilities, staff and service levels, as well as the rate of mining claims. According to Roman , Commercial Director of the Group of Companies propleks, Russia's largest manufacturer of pvc window profile of Austrian technologies: "The introduction of a certification system is a logical step in the development of the window market. We conduct regular surveys professionals okonschikov. Most respondents say the recent increase in buyers' requirements for quality products and are in favor of the need to improve customer service. Availability certificates of compliance from business partners will be for the buyer confirms that when producing companies, refiners have been complied with all regulations and guests and used in modern technology of production of pvc windows.