Hire a website design company for better site

There are so many website design companies around the world, it seems that every person and his dog are installing such a company, in fact someone can offer this service with a laptop, and prices for such services are such as flies, You can take a website for several hundred pounds etc. So what is a website design company different from others?

 What are unique selling points that you are looking for to choose another company for any other company?  This question actually determines the kind of business you are in, for example. If you are a owing fancy homes with many restaurants, you’ll need a bit more apparent than a local dealer like plumber or electrician.