The content of a site can be very rich. But the first thing that the user judges, before even the merits of your products or your services, before even the wealth of your site, are:

Quality of the graphics, speed of loading of the pages, compatibility with the main navigators, with different computers...

€50.00 per hour for redesign of any older site which could include an entire "new look" or just updating information because your original designer/webmaster is no longer available to make changes for you.  This service is available on an "as needed" basis.