Email at joel@joeldyck.com works just as well for a longer question or for attaching documents, such as a property tax assessment or old inspection report, ahead of a first conversation.
Whichever channel you use, expect to be asked a few basic questions up front, your timeline, your property, and what you are trying to figure out, so the first real conversation can be specific rather than generic.
None of these channels require any commitment before you talk to Joel directly. Get your hand-reviewed valuation from Joel Dyck.