SEO is about being found when people search for what you do. Start with one clear page per main service. Each page should include: the service name, the location (if relevant), who it is for, and what results it provides.
Use descriptive headings, write a short FAQ section, and keep your site structure simple. Search engines prefer clarity. Also make sure your page loads fast and works on mobile.
Finally, publish helpful articles that answer common questions. Over time, these articles bring in traffic and show expertise. SEO is a slow game, but the payoff is steady inbound leads without paying for ads.