Most cases there are no signs of water infiltration until we remove the window or door and there is a good chance white mold growth is present. All types of mold can cause health problems and structural damage which should be removed as soon as possible.

To learn more click on the link.

https://www.puroclean.com/blog/what-is-white-mold-and-is-it-dangerous/

Solution to cleaning mold off windows.

https://www.greatplainswindows.com/window-replacement/cleaning-window-mold-off-glass-sill-frame/amp/