Major maintenance concerns matters such as repairs to roofs, replacement of kitchen components, and outdoor paintwork. Minor maintenance activities include topping up the water in the central heating system, replacing a rubber gasket in the tap, cleaning roof gutters etc. Vesteda is responsible for all major maintenance activities, whereas you are, in principle, responsible for minor maintenance.
The folder 'Het onderhoud van uw woning' (only in Dutch) explains exactly who does what in terms of maintenance and repairs/renovations or replacing components inside and around your home.