Make a hover button clickable

I’m trying to make the 3 main buttons (Home Security, Business Security and Fire Systems)in the middle of the page clickable. Right now, all they do is change color to blue when you hover. I would also like the icons below them to be clickable as well. I would like them to go to there proper page Home Security –> http://willamettevalleysecurity.com/security-systems/

and so on and so forth…