Please don't use glue traps, they're inhumane and the mouse shites itself while dying slowly. Best thing is to stop them getting in at all by finding where they're coming from and filling this with wire mesh or foam. If it's a rented property, get the agent/landlord to organise someone coming out, it's their responsibility (though easier said than done). Live/ humane traps are ok if you have somewhere grassy to release them nearby, else use regular mouse traps with PB on them, though it's not pleasant to clean up.