One way of getting directions to a client's house is by clicking the pointer icon next to the address of the client on the client's information page.
To get to the client's information page, simply click on the desired client and it will redirect you to the client's information page. There you will find the locations card.
After clicking the navigation icon next to the client's address, you should get redirected to the map with directions on how to get to the client's address from your location.
