Hi, A basic question: am getting plumber to my flat to replace sealant along one wall where horizontal of worktop meets vertical. Rest looks ok but is many years old. Wondering what consensus is - should I get all of the worktops redone or just the one walls worth? plumber will be there to do washer replacement on tap - so as they have hourly rate figure I may as well if time is left ask them to look at sealant. Best regards and thanks in advance.