If your tenants would like their windows "winterized," do not hesitate to contact Campus Handyman - aka the #1 home maintenance service provider for your rental property around Columbus, Ohio! While even brand new windows can let in some cold air, a simple solution is to install tight fitting plastic insulation over the window. This is a simple and affordable way to cover just the windows in need. We do this for many of our clients and tenants and we'd be happy to do it for you. Do not hesitate to contact Campus Handyman today!.