Joshua,

Here's just one way to enhance your business. Hire and train someone to actually do the curb painting. They get a percentage of each job they do. Now you are freed up to go door knocking if that is your method.

You could also invest in a couple of direct connect type phones so you can call your employee to come to a particular location to provide same day service if that is what your client wants.

You will grow from there. As you grow hire an additional person and pay them a percentage of the call. Then you can expand into other areas of business.