The new-look www.bbr.com will have improved functionality and new features such as a dedicated gifts section.
Visitors will also be able to build up their own wish list on the site and take advantage of the popular searches feature to see what other people are buying.
Other features include an improved search engine enabling customers to find wines by price, country, region and even alcohol levels.
Berry Bros e-commerce manager Charlie Bennett said work had taken nine months to complete.
He added: “Websites have a natural life of about five years so we wanted to renew it and introduce new features and functionalities with it.
"We are not looking to give it a particularly glitzy look, just make life easier for the user."