If anything, your SEO should improve after we build your new website! As part of our development process, we implement technical SEO such as submitting a new sitemap and Robot Txt to Google Search Console. Upon launch, we have several checks to ensure no previous rankings are lost. These include checking for any broken backlinks as well as checking the URL link structure. However, if you require your new website to rank for specific keywords, we highly recommend signing up for one of our SEO packages, even if this is just for one month to keyword optimise the website.