The basis of the window is profile. Thermal insulation and sound insulation depend on how many chambers (cavities separated by partitions) in the profile of the chambers (cavities. I am a city apartment for three -chamber windows. Now for plastic windows Yekaterinburg are low prices.
PVC windows are produced both in Russia and abroad. Many foreign manufacturers opened their plants in Russia, so often the windows that were produced in Russia and are a product of Western technologies. The properties of the window are determined by the amount and quality of the additives that are present in the manufacture of the profile. Better additives increase the service life of the window and provide an attractive appearance.
The opinion that it is necessary to mount windows only in the summer erroneous. The materials and technologies used now allow you to carry out installation in the winter. Do not be afraid to freeze. Preparatory work is carried out with closed windows. And the replacement itself will take about an hour, the window opening will be open for 30 minutes. The rest of the process is finishing and cleaning. In addition, in winter, company installers offer large discounts. So it is very profitable to replace windows in winter.
Choose a starting company must carefully. It is best that the window is installed by the company that makes them. In case of preliminary conversation, find out if there is a guarantee and service in this organization. Ask if the organization has an admission to this type of construction work.