Disabling “tel” tag for MacBook

Hi,

I would like to know if it is possible to disable the “tel” tag a website. The tag is actually meant for mobile users to make a call on the go. But while on Mac, it opens FaceTime and on Windows, it does nothing. It’s my Burlington based plumbing company’s website, http://www.plumbwize.ca/

Is there a way to fix this other than removing the tag?