Condensation between panes means the seal has likely failed. Try ventilation or a dehumidifier, but if misting persists, the unit should be replaced.
Argon gas between panes slows heat transfer and absorbs sound. This keeps your home warmer and quieter, ideal for energy savings and noise reduction in busy areas.
Most last 20–30 years with quality installation. If you’re seeing mist, draughts or stiffness, they may need replacing.
Double glazing is usually 20–28mm thick. The optimum for insulation is 24mm, which we use in most installations.