Re Green Window Works. I suggest the two responses you received are not well informed. Green Window Works can and does successfully fix fogged windows. The seal is not "repaired" in the process but holes are drilled through the glass itself which are later covered with vents. Chemicals are sprayed in to clean and then drive out the moisture retained in the spacer bar between the 2 layers of glass. They give a 20 year written warranty of no moisture. Had widows "fixed' by them 5 years ago still good...no moisture. Give them a try. They claim they will give you your money back if not satisfied. Check out their website...just google green window works. Regards.