Refilling argon gas in windows typically requires professional service. Argon gas is injected between the glass panes of double or triple-pane windows to improve insulation. If the argon gas has leaked, a window professional can reseal the window and refill the gas. This process restores the window's energy efficiency and prevents heat loss.

Argon gas is used in double or triple-pane windows to improve insulation. If it leaks, professional services are needed to reseal the window and refill the gas, restoring energy efficiency and preventing drafts or heat loss.