13 November 2026
How much peace and quiet do new windows bring? We explain sound insulation classes and dB values and show...
13 November 2026
Which security class do your windows need? We explain RC1, RC2 and RC3 and show which features really stop...
13 November 2026
Double or triple glazing? We compare insulation, weight, light transmission and typical uses and show when triple glazing pays...
13 November 2026
What does the Uw value mean? We explain Ug, Uf and Psi, show typical requirements and use an example...
13 November 2026
VEKA Softline, Salamander bluEvolution or Aluplast IDEAL? Frame depth, chambers, seals and Uw values of the most important PVC...
13 November 2026
PVC, aluminium or wood? We compare insulation, maintenance, price and typical uses and show which window material suits your...
13 November 2026
Advice, survey, quote, production, delivery and installation: this is how ordering windows from Aristofenster works, step by step.
13 November 2026
Why windows from Poland are often cheaper, which profile systems are behind them and what to check in the...