Good to know


Windows require regular care at least 1 time per year. Care includes: 

  • Cleaning and lubrication of window fittings (locks, hinges)
  • Adjusting of the window opening

For this purpose:

  • Lubricate all moving parts of the fittings. For lubrication use only lock oil or other lubrication materials that do not contain acid and resin
  • Clean window seals and lubricate them


If functional defets appear, they can be dangerous for people! In this case please do not use the window, close it immediately and contact the nearest sales office.

Window cleaning

For window cleaning use sparing, non-abrasive detergent. In case of heavy dirtying (for example, gypsum or mortar remains) clean the window with plastic or wood spatula. Dust and dirt from drainage slot can be removed by vacuum cleaner just open the window frame. Too clogged areas can be cleaned with a wooden or plastic lath.


To ensure the elasticity of seal lubricate it with silicone oil.

Window can not be cleaned with:
  • Working tools with sharp edges (knives, metal spatula), which can damage the window surface
  • Strong cleaners and mortars (nitrosolvent, means for varnish removal etc.)
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