27/01/26

How to Choose PVC Windows for Apartment: Checklist of 10 Key Parameters

Replacing windows is a significant investment, so it’s important not to make a wrong choice. Here are 10 criteria to consider.

Profile class and width (from 60 mm for moderate climates). A wider profile provides better thermal and sound insulation. For noisy areas, opt for at least 70 mm.

Number of chambers in the profile (4–5 is optimal for an apartment). Chambers enhance rigidity and insulation properties.

Profile reinforcement (steel insert, 1.2–1.5 mm thick). Ensures resistance to wind loads and deformation.

Type of insulating glass unit (double‑glazed is standard for residential use). Three panes retain heat more effectively and reduce noise. Thickness should be around 32 mm.

Quality of the sealant (silicone or EPDM rubber). It should remain elastic across temperature fluctuations and last for decades.

Accessories . Determines smooth operation, airtightness, and anti‑burglary features.

Sound insulation. Crucial for windows facing roads or busy courtyards.

Ventilation system (micro‑ventilation, ventilation valve). Ensures fresh air intake without drafts.

Appearance and colour (white, wood‑effect lamination, etc.). Should match the interior and building facade.

Certificates and warranty . Confirms quality and entitles you to after‑sales service.

Common mistakes:

choosing the cheapest profile without reinforcement;

ignoring the quality of seals and hardware;

skipping ventilation systems (which later leads to condensation).

Tip for the specification for the measurer: indicate the floor, window orientation, noise level, preferred opening modes (tilt‑and‑turn sashes are more convenient), and additional options (valve, mosquito net).