Top 7 Best Carpet Cleaner for Stairs Carpets can be really hard to clean, which is why carpet cleaners were invented. However, cleaning carpets on stairs is whole different ball game, because those steps can make it really hard to maneuver with most normal carpet shampooers. Today we are here to help you find the best carpet cleaner for stairs. We’ve got a great buyer’s guide to help you figure out what the most important features and purchasing factors are, plus we have reviewed some of the best possible stair carpet cleaning units out there too.