A service website should answer the visitor’s first questions quickly: what you do, who it is for, how much it roughly costs and how to contact you.
The strongest structure is usually simple: hero, services, proof, pricing, work examples, a short process and a contact form that creates a useful request instead of a vague message.
For SEO, every service should have enough clear text to describe the offer in human language. Good headings, fast loading and real contact paths matter more than decorative noise.