Valid HTML and CSS
As standard your site is built from the ground up using the least amount of code as possible.
Technology is used that can degrade gracefully to allow users and the search engines to find and use your site without compromise. Web page's are built to the highest web standards, I build web pages (where practical) are quick loading, resizable, printable and accessible for all users.
I've built sites to the highest level of accessibility (Triple A compliant), this year I've built a site for a London Council (Double A).
I've built sites that have needed to work on mobile or ipad (either specifically or as "responsive design") whatever your challenge, all you need to know is .. I build websites that work.