Hi Marianne. It looks like you want to replace your channel balances as well as your top sash guides. The channel balances are the 'rods' on the sides of the sash. They are spring-loaded mechanisms that allow the window to open and close at will. We can certainly replace these for you, but we will need to see one of the balances removed from the windows. Photos of any attachments at either end of the balance would be helpful. Please keep in mind that these balance types might differ for different-sized windows, so if you have to replace multiple sets be sure to account for possible differences.
For your top sash guide, could we have a full picture of one removed from the window, with mugshot photos of the front and side? Many thanks.