First of all, all a professional web design company Johannesburg have two important pages: About Us and Contact Us. You can learn about the web design company Johannesburg there and contact it if required. These pages are important as you can assess the capability of a web design company Johannesburg by reading its About Us page. If any of these pages are missing when you visit a website, you should be cautious and it is recommended that you avoid doing business with such a web design company Johannesburg. These two pages are vital and must always be a part of any business website.
Another important thing to note is the layout of their website. See, you expect them to create your web design, and if they couldn't even create their personal design creatively, then how could you expect them to give you a professional look. Check and see if they have organized the content and graphics strategically or not. If their own presentation is not good, then they won’t be able to create a nicely organized web design for your business. Their font size, style, graphics, links, etc. should be nicely organized throughout the site.