Garbage disposals become less advisable and it's a very good idea to have your tenant put an enzyme ( I believe we use a product called Riddex) in the system a short while after pumping.  

For 7984 Them removes wood windows, disposal, removed triple tracks, installed new windows, insulated jams, caulked inside and outside, and wrapped exterior in aluminum.Energyking 100 double hung double pane with grids , half screens, and security locks.