There are many services provided by SEO firms, but one of the most important is on-page optimization. There are a lot of really bad web pages out there, and they don’t have a fighting chance of getting to the top of the search engines. On-page optimization gives them that chance.
It’s not that the SEO doesn’t like your page - he’s just trying to make it as search engine friendly as possible. Of all the SEO Services offered out there, this is one of the most important because it determines how pretty your site will look for the search engine robots. And believe me, you want your site looking pretty.