Each of the cordless vacuums on our list includes a two-year limited warranty but a quality model should last you significantly longer than that. That said, cordless vacuums do take a beating and you shouldn't expect any model to last much longer than five years if used regularly. This is certainly something to consider when selecting a model.  Having your vacuum serviced after the warranty has expired may not also be worth the money, depending on the particular issue. To suss out any potential lemons, we dig through buyer reviews on multiple retailers to see if any vacuum brands or models have consistent breakage issues, either with the motor or external parts.