I will optimize google my business profile for local SEO and gmb maps ranking

There is no fixed time for result in SEO. It depends on your business competition, keywords difficulty etc. Normally Google takes almost 5 to 7 weeks to start indexing and showing results slowly.

SEO is digital marketing of your Business. More you keep doing it more you grow, out rank competitors, rank your keywords and generate leads. SEO gives non paid organic traffic so it's not one time thing.

SEO experts don't guarantee results because there are alot of factors that are responsible in ranking. We are ranking epxert and we can apply the best possible strategy that helps to improve ranking. SEO is on going process. More you keep doing it more you grow and outrank competitors.