I was once a professional mole trapper and I can tell you now that the only way to get rid of moles is to kill them!!
There are various old wives tales and ground thumping devices and smelly things all of which really upset the mole, so all it does is move a few meters away so it cant feel it, smell it or hear it, this could mean just moving the mole around your garden to make even more mess or move it to your neighbours garden.
Buy yourself a few Duffas traps, you can get them in most garden centres, sometimes known as a tunnel trap!! you will need a poking device, as you need to locate the run between the most recent mole hills (i used a steel bar with a larger diameter point so as soon as you pushed the spike into a run, the bar felt free in the run!! This is where you need to set your first trap, never set traps in the mound, waste of time!! the trap needs to be set firm in the ground and lightly covered with soil to prevent light entering. The more traps you put down the better chance of success, don't be tempted to interfere with the traps once they are set, you can see when they are sprung, as the spring pushes up through the soil.