I should also point out 99% of people use me again after finding me
I know you are probably just being a bit facetious, and you probably do get a lot of callbacks. However, 99% is an unbelievable recidivism rate. Unless you have a captive audience, we are in way-too-competitive of an industry for this to be true. Hyperbole aside, you should be measuring this. Tracking repeat rate helps you see trends in your own customer base. Then the moment you decide to track it, you will find out that it is more difficult than you thought (especially for residential work). It is not just the number of total customers you have seen divided by the number of customers you have seen more than once.
How long of a period to you pick, for example? When you get a new customer, they don't call you back immediately, so do they count
against your repeat rate? Plus, residential customers will never call you up and tell you that they have moved on to someone else. You have to just notice that they haven't called you back in a while. How long is a while? 6 months? 12 months? 24 months? "Low risk" customers might only call you once every 2 or 3 years, while "high risk" customers might call you every few months. How do you account for that? Business customers need you regularly, maybe every single week. Do they automatically increase your repeat rate? Maybe business customers should be left out of the equation altogether?
Anyway, I guess I was feeling picky this morning. I know when I first started I wanted to keep track of a bunch of different things, among them, callback rate / repeat rate / recidivism. In the end, I decided that I couldn't really track this accurately, so I measure two numbers, and update them once per month.
"Total" repeats = total number of customers i have ever seen divided by total number of customers who I have seen more than once.
"Seasoned" repeats = Total number of customers I have had for at least 12 months divided by number of THOSE customers who I have seen more than once as of now.
I watch both of these numbers from month to month to see if they are going up (= good) or down (=bad). Then, I try to analyze why that might be so.
I know, I know - I need a hobby.