Usually, it takes around 6-12 months for you to start seeing the full impact of Search Engine Optimisation (SEO) through the amount of enquires you are getting.

Even after the 12 month+ stage, you would usually keep seeing increasing enquires  as you build a legacy within Google and gain secondary keyword rankings.

Some of our clients have been getting more and more enquiries every month for 3 years  without having to increase the amount of money they are spending on a monthly basis (one of the key benefits of SEO).

Timelines do however vary based on the type of SEO you require and many other variables such as your business age, industry, previous marketing efforts etc.

Related Article:  'Are SEO Rankings Guaranteed?'

Local SEO  you can usually start to see results within the first 90 days.

Regional SEO  takes longer and you will usually see results within the first 6 months, this could be as long as 12 months if you are trying to rank in larger cities. 

With National SEO  you shouldn't expect to start seeing tangible results until around the 12 month  mark and if your industry is super competitive this could be closer towards 18 months.

However, if your business is a niche, you can rip the rule book up a little. We have implemented national search engine optimisation  for some businesses and got results within the first 6 months, even in industries that weren't super niche.

It is worth noting that if you are a new business or you have only recently bought a domain name, it is likely that the timeframes of when you start seeing results could be a lot longer.