I rank either 1 or 2 on google for leather repair & leather cleaning in my area, I get 1 or 2 enquiries a month from it, now I just forward the email to a friend of mine who just does leather work. He is snowed under with leather repair work but all his marketing effort is aimed at finding it.
As an add on for carpet cleaners I see it a a nice change but not a big part of my income stream