There are two fairly new, and very important conditions existing in the world today that have not only made the carpet cleaning industry a "billion dollar business," but also practically guarantee your success as an entrepreneur in this field.
First, almost all homes and office buildings built since 1960 have wall-to-wall carpeting. Secondly, the replacement costs and the cyclical faltering of the national economy have caused people to want to make what they already own last longer, especially in the case of carpeting, which is a sizable investment.
Most businesses employ janitors or janitorial services to
vacuum their carpets after hours daily, and then "master" carpet
cleaners to deep-clean them every three months or so. Homemakers
also generally vacuum their carpets perhaps several times a week,
and then hope to deep-clean every spring or fall, depending on the
kind of household traffic, and on their budgets.
It's true that people everywhere try to save money by handling
these jobs themselves. However, empathy with the people, and an
understanding of this trend, should be neither cause for alarm nor
a deterrent to your success in this business.