The #1 spot on Google's Search Results is the place to be if you're a Small Business. If you want to be number 1, there are a few things you're going to need to do.
Majority of the time I get inquiries regarding my services, it is about Search Engine Optimization and how quickly I can get their website to the front page of Google.
I always respond the same way: I can possibly get you to the front page, but there are no guarantees. I use a method that has proven successful in the past, but I would be lying to say if I do X, Y, and Z, that you would be on the front page in 30 days, 3 months, or 1 year.
I can't make guarantees because Google changes its algorithm regularly and I do not control that algorithm. For example, Google's recent update, Hummingbird, has a focus on "Conversational" search (think "Where can I buy a used Honda Accord?" versus "used Honda Accord"). Google has also released updates which focus on a variety of other aspects and they do not notify you in advance of a change (Hummingbird was actually added in early September 2013, but the public was not notified until September 26th).
Also, a little bit of slippage, whether it is due to laziness (which does happen to the best of us) or a lack of security (as noted in my article on the Perils of Search Engine Optimization) can cause a huge amount of frustration. You were making progress; maybe on page 3 or 4, you stopped posting, and two months later, you're off somewhere in "no man's land" (anything after page 5).
So, answer the question: What is the quickest way to Number 1 on Google?
The quickest way is also the longest way. The people who are number 1 on Google have been working on it for years. Since it pays off handsomely, they will continue to work on it until Google dies off (which won't happen for a while).
There is no quick fix to get to the front page of Google. It requires a lot of work on your part and a lack of work of your competition. You have control over the former and the latter, by nature, tends to happen on its own.
Sure, it does cost a fair amount of money to hire an outside source (like Semishock) to help audit your website and make suggestions to improve it. It is also a proven way to generate more income for your business.
If you need any confirmation, find out who the number 1 competitor on Google is for your industry and ask them if it was worth it. I bet I can guess their answer already.