Hello BTainter,
Yes, we can help you to maintain your existing website.
Kindly share your existing website URL & requirements in details so that I can get a clear idea about the total scope of the job.
We have very good experience in website designing and development using WordPress, PHP, CodeIgniter, CakePHP, Laravel, MySQL, Ajax, HTML5, CSS3, Bootstrap, jQuery, JavaScript etc...
Let's discuss more details...
Regards
Sukant