Ask for referrals

If you have provided a service and your customer is happy with it you should ask for referrals. You tend to get a better response if you are specific in the number of referrals you are looking for. At the end of every job you have completed you could simply ask if the person was happy with the service you provided. If the say yes simply state. “If you know three other people who might benefit from my service could you pass on my business card?”.