My two dogs are 2-years old. They are crated when I am gone. When I come home the lab gets so excited he pees on the floor before I can get him outside. What can I do?

I have two dogs; a 2-year old golden and black lab. Both were crate trained since pups, but they've had the run of the house for about 6 months now and I haven't had any problems with anything until now. My black lab seems to get too excited when I come home and he pees before I can let him outside. I'm only gone at the most for 5 hours in a day, and I'm not sure what to do. Should I not leave water for them while I'm gone? The black lab has a tendency to over drink, but I don't want to leave them without water. Should I put him back in his crate?