We have older double pane windows at our house. I have two that when it gets cold get moisture between the panes and looks like crap. It appears it's caused by a faulty window seal. Anyone delt with that before??
When we sold our last house had two windows changed out for that, pretty expensive. Don't know if that's repairable, might depend on the window. Have a buddy who just put in all new on his place, gas charged and pretty complex so probably depends.