Short answer
Google's term for “a business that visits or delivers to customers directly but doesn't serve customers at their business address”: a plumber, say, or a mobile dog groomer. On a Business Profile it shows the areas you serve instead of a street address.How it works on your profile
Instead of showing an address, a service-area business lists where it works. Google's instruction: “If you don't serve customers at your business address, remove your address and only enter your service area” ( Google Business Profile Help). You can add service areas by city, postal code or region, up to 20 of them.
Keep the area honest. Google says “the boundaries of your overall area shouldn't be more than about 2 hours of driving time from where your business is based.”
Does it hurt your visibility?
Hiding your address is what Google asks service-area businesses to do; it isn't a penalty. Google ranks local results on relevance, distance and prominence (Google Business Profile Help), so the same things matter as for a shop: a complete, verified profile, the right category, and reviews. What changes is that customers see where you work rather than where you live.
Examples
- Trades that work at the customer's home: plumbers, electricians, cleaners.
- Mobile services: mechanics, groomers, tutors who travel.
- Businesses that deliver but have no counter for customers to visit.
If customers can visit you somewhere, you aren't a pure service-area business; that location can be shown. Should a home address be shown?