Be aware of the fact that washing machines are not always included in the rent price. Hiring a washing machine will costs approximately €9,99 each month. This price can be divided among you and your housemates. Gruno Verhuur rents the machines at De Waslijn (use integrated Google Translator). You will pay a fixed price each month and do not have to pay for every wash. De Waslijn has a service number, which you can use if your washing machine does not work. This is for free, so you do not have to pay service costs.
Many machines, likes fridges, ovens, and dishwasher are built-in machines. For these machines you do not have to pay extra rent.