Consider putting in a formal referral program in place
Encourage people to refer you and they get X% off
the next time.
Also I have also seen companies successfully use a discount off
the quoted price to encourage a referral.
You could say to them,
“BTW there is a 30%
for you if you can refer me to 3 people" (which means pass on their info, or send
an email to that person and CC you with an intro).
Nowadays referrals need
incentives.
Ask them to share (and make it easy for them)
Ask your clients to share your message on social
media. Give them the blurb ready to go, “your story in 1 paragraph”. So all
they need to do is copy and post to their facebook. Make it easy for them to do it. If they are happy customers
and loved your service they should have no problem doing this.
A contest
Or run a competition. Ask your old clients, even
your facebook page audience, and tell new clients that they could be in with a
chance to win a free $150 groom for their pet. All they need to do is like and
share your post and they are in the contest.
Best of luck with it.