Not always. It will depend on the size of the slipcover itself. If it is larger in size, then there’s a good chance that you might need an extra set of hands to help you get the job done. But if you are tackling it yourself, it can be a challenging task that may take you longer than it should. If you are switching out a slipcover, you may need someone to make sure that everything is well-covered and evened out. It doesn’t matter what size it is. But you’ll want a good set of eyes to make sure that everything is straight.