Remove the countertop - Most countertop surfaces rest on a plank of wood at this point attached for the base cabinets using screws, but organizations which are nailed and glued for the cabinets. Get into the base cabinet and unscrew or pry the nails off. You ought to be able to lift the countertop away. If it doesn't come off, try tugging it off repeatedly, applying an upward force on all sides u