Great, that's how everything starts.
(ALWAYS!) do your best so word of mouth may do it's magic, and in no time you'll be washing and waxing every car in your town.
Actually I have a customer (medical doctor) who keeps saying it's more difficult to get scheduled with me than with an orthopedist (mostly looked after medical consultant here) ahhaha
Obviously this is a funny comment, but for you to see how I've started with my own business some time ago just like you're doing now.
This market may be full at first sight, but it really lacks QUALITY professionals that may came to a discussion forum like this searching for top quality information to back up their (also top quality) work.
Seeing this thread give me great remind on my start... so good feeling remembering that.
Heaven is your limit,
You've done an awesome job.
Thanks for sharing.
Kind Regards.