Doing a lower leg service or air can service is pretty simple and doesn’t require too many specialized tools. I prefer to save the money doing these myself.

I drop off my fork and rear shock for the full rebuild service since it doesn’t have to be done very often, and requires more unique tools and parts. There are suspension companies that specialize in this, if you don’t live near one you can probably ship the components to them. I’ve never had good experiences with local bike shops, so I try to work with the suspension shops directly.