You can view the chart below to see how Portland Window Cleaning counts window panes. For accuracy it is best if you count window panes from the exterior of your home. These window panes do not include storm windows. We will clean storm windows on a case by case basis on a one level home only. The prices listed on this website are for vinyl windows only, older aluminum or painted frame windows are accepted only after approval. Homes with divided light windows will need be be evaluated individually before cleaning. Minimum pricing requirement for residential cleaning is $149.