New Generation Window Cleaning started as a office cleaning company in 1978. Window cleaning was a sideline at that time. It did not take long though for window cleaning to become an important part of our business. Now in 2019 window cleaning has become 95% of our total business. So window cleaning is no longer a sideline for us, it is our primary business. In the early days most of our window cleaning business was in Reading, MA. I grew up there and word got around. Then we started to expand into North Reading, Andover, Lynnfield and Middleton.