We would HIGHLY recommend Santa Cruz Plumbing. They are responsive and reliable!
A couple weeks ago we had a water line burst that ran into our water heater, which started flooding the garage. We are renters, so we called our emergency line and was told the plumber (another Santa Cruz area plumber) would get back to us. After 15 minutes went by and while water filled the garage, we gave up and called our own plumber - Santa Cruz Plumbing. They responded quickly, and their technician Chris was at our house within 15 or 20 minutes. He assessed the situation and knew exactly how to fix it. In less than two hours, it was fixed (along with another valve that he tested to make sure everything was working)!
As a side note, the other plumber who we called first and told them it was an emergency didn't even call us back for over an HOUR. And that was just to schedule a time for the technician to come out. Santa Cruz Plumbing and Chris had everything fixed before we would have even seen the other company.