What the Business Profile does well
It is excellent for immediate local discovery, reviews, directions, opening information, photos and quick calls. For many trades it is the first impression before a customer ever opens the website.
What the website does well
The website can create a deeper structure around services and locations, answer objections, show work, explain the process and provide landing pages for advertising. You control the content and internal linking in a way you cannot on a third-party profile.
The strongest setup uses both
The profile establishes local presence and trust. The website expands relevance and gives the customer a better place to decide. Consistent phone numbers, service information, area coverage and branding help the two assets reinforce each other.
What to build first
If a brand-new local business has nothing, a correctly set up Google Business Profile and a lean professional website are both high priorities. If budget is limited, keep the website focused rather than launching twenty weak pages. Add depth as actual search and enquiry data becomes available.
What not to do
Do not create fake locations, buy reviews or invent service areas. Do not build a website that copies the Business Profile word for word. Each asset should be truthful and useful in its own role.