There doesn’t seem to be a warranty to speak of! Lego tends to stand by it’s reputation of solidity! Their website and customer service are more than accommodating for any kind of issue you may have. It offers replacement parts, extra figures, extra accessories. There are even online instructions on how to add to already-existing sets! The number of options out there and superb customer service more than compensate for there being any sort of lack of warranty on the part of Lego.