If you bought a Croft Door, you got the worst made, cheapest piece of junk door made in the history of the door industry. If you have a dual glaze model that the glass is fogging up on, you could buy a similar cheap entire new door unit from a Home Depot type place. Take the glass out of one of the pannels and put it in your door. They come in standard sizes, 34x76, 46x76. You could buy a new cheap unit for $125-$200. Any glass shop would charge you $200 to replace one piece. The difference is the cheaper doors use 1/8 plus 1/8 glass. Better doors come with 3/16 plus 3/16. 5/8 overall. If you get a glass shop to put in new glass try to get a warranty. Most of the places that sold Croft Doors do not sell them anymore or have gone out of business. No door company would have sold Croft products. Only discount chain Home Club type places.