CMS helps to separate design of web site from its content. It means designer develops a web site and gives it to its owner or manager who can fill a certain design with different content. If necessary the content of web site, its images and graphics can be easily edited without intervention into design of web site. All changes become visible as soon as you make them. (Don‘t forget to reload page after making changes). Even if you are not an expert of HTML coding, you can easily manage the content of your web site yourself.
There are numerous companies out there providing professional designed web templates. There are also site that offer free web templates. Then off course, one cannot expect all the free web templates available on the web site are professional, there are however, some free web templates are designed professionally and optimized correctly. If one is seeking for more professional service and support, one can opt in for premium web templates company. An example will be DeonixDesign where the company offer thousands of professional templates. DeonixDesign work as after user subscribe their service, they can have unlimited access to all the contents available there.