When was the final time you had the carpets professionally cleaned? In case you are like the average U . s . household, it was possibly some time in the last yr – and you will probably hold out at least another 12 months to get them cleaned out again. The Environmental Defense Agency recommends floor coverings in residential properties are cleaned each 6-12 months if A couple of or fewer folks live in the home who is non smokers. For larger families with both kids and pets, the EPA recommends a professional carpet cleaning every 3 months.