Yes, and most of tradies do exactly that. Some come in for a set of ute decals and business cards when they first go out on their own, then add workwear and site signage a few months later once the work is coming in steadily.
Because we hold your branding files, adding items later is straightforward. Your new polo will match the decal you ordered six months ago. Your site sign will carry the same logo as your business cards. You do not have to brief anyone again or worry about things looking inconsistent.
Start with what makes sense, financially right now and build from there.
