My add on services, ie softwashing / jet washing etc would mostly be down to my website and a small proportion down to referrals.
Window work.
Recently, (several months ago till now) I have been expanding into a new village. That has expanded mostly due to the "village hub" on facebook which I can promote my company or others can refer me.
This is probably 70% me running adverts and putting myself forward on enquiries and 30% where my new customers have recommended me.
This has in a relatively short period of time, built up nearly 2 days of work per month at very good prices (esp for doncaster)