It looks harder than it is
Most owners assume multilingual SEO means running a second business. In practice it means a small set of properly translated pages, matching profile content, and a plan for handling the calls that come from them.
The work is modest. The reason it stays undone is that it feels unfamiliar, which is exactly why the competition remains thin year after year.
Machine translation is the trap
A page run through automatic translation reads as automatic to a native speaker, and a buyer spending five figures notices immediately. It also tends to miss the terms people actually search.
Human review of the important pages is the difference between a channel that produces booked work and one that produces polite silence.
Intent is often higher, not lower
Someone searching in their home language for a complex service is usually looking for a provider they can talk to comfortably about something that matters.
That is a strong buying signal. In several categories the leads from these queries close at a better rate than the English equivalents, at a fraction of the cost per click.