If properly cared for a chandelier is an investment and an heirloom that can be passed down from generation to generation.
Crystal chandeliers will need cleaning from time to time. Over time dust can make them look dull and drab. However, if chandeliers are dusted regularly with a feather duster or similar, they will not need cleaning for up to a year. Frequency of cleaning will depend on the chandelier's location, amount of atmospheric pollutants, shape and type of crystals.