If your heater breaks, you call a heater and a/c specialist. If your car breaks down, you call a mechanic. However, the water heater is not an obvious case. If you have an electric water heater, should you call an electrician? If it’s gas, should you call the heating and ac person? Well, the answer is no. If you have water heater problems, you should call a plumber. That’s because the water heater still taps into the plumbing system.