Windows. Sure, you wash the inside of your windows regularly enough, but what about the outside? If you really want clean windows, you will want to get up to the window and clean it like you would your inside windows.
Ladders, glass, and cleaning just aren’t a combination most people want to take on. Two to four times a year, have professional window cleaners come and take care of them for you.
Gutters. Notorious collectors of leaves, pine straw, dirt, and other assorted odds and ends, gutters can get completely bogged down with debris and need to be cleaned about two times a year.
Like windows, though; taking on the gutters means a ladder—and a mess. Want it done quickly and effectively? Leave it to those who do it for a living!