You may get a better response if you post directly in the carpet cleaning section but as I'm here;
Some customers only want carpets cleaning when they move out of a rented property and resent every penny they spend on it.
Others will want their carpet doing once every five years, or more, when its got to a state where they can't ignore the state of it any longer
And yet others will have their carpets cleaned every year without fail, even though they have a pretty much immaculate house, and call you to deal with any spills inbetween.
As your business grows you aim to get the repeat business from customers who are happy to spend on a premium service from a carpet cleaner they trust to do a good job at a price they are comfortable with.
*there are more than three types but you get the idea