Yes, but first turn those blinds to the horizontal open position, because closed blinds increase resistance and is harder on the strings. You don't want to restring them any more often than neccessary. Use both hands, one favoring each side, and lift with an equal amount of force. They are intentionally adjusted to be hard to get up so they don't fall down by themself. Especially the one on the door. You don't want it coming down inch by inch every time you slam the entry door. Tight metal blinds also eliminates rattling.
