Hi Peter, we are very satisfied with the work and customer service @ Dual Panes Solutions, Mesa ,AZ. Its best to call them for pricing based on what degree of fogging /etching you might have. They charge $150. / window for removal, de fog reseal glass using a butyl sealer and replace with a non silicone sealer. We do have some etching that is not noticeable on the door window. The horizontal top window does have a very noticeable amount of etching so we opted to have it replaced with dual pane tempered glass. Cost is a $415. We recommend them highly.