People ask us this question all the time, here is the answer:
It depends greatly on your particular situation. Those with children, pets, or large families will need more frequent cleanings. Some carpet manufacturers in fact require carpet cleaning every 12-18 months to keep the warranty in effect. Commercial cleaning often needs to be setup on a regular maintenance program in order to properly maintain it.FYI:    If you putting in new carpet make sure you read the warranty.    Ask about what kind of vacume you should use on   the carpet.service area:powell, dublin, westerville, delaware, lewis center, sunbury, mt vernon, marion, johnstown