SEO is a marathon rather than a sprint. You may not start seeing results for the first few months as it takes a while for Google to find, index and start ranking any changes made to your website. At Ladybird SEO, we usually offer packages that are a minimum of 3 months, this is because anything less than that will not be enough for significant changes to your Google ranking. SEO work is never "done", adding more content such as blogs is always the best way to maintain your rankings. However, as far as the main pages on your website are concerned, re-structuring them for local SEO can vary in times - it really depends on the amount of pages / services / products you have and want to rank for.