Sash windows in London have been around for over 300 years, yet continue to be a popular style of window for the area. There are several reasons for this. One is the reality that there are several kinds of sash available.
A sliding window with weather stripping. Sliding windows can either come in a hung, or horizontal slider. - See more at: http://www.ecolinewindows.ca/find-out-the-cost-of-replacement-windows/#sthash.bVNZthxA.dpuf