Can anyone help???

We had “a” rat coming in our home for months now and no matter what I do or use it’s just not worked I’m NOT using poison at all.
So far I’ve use snap traps with loads of peanut butter because apparently they love it. It has set them off but I think that’s just with it walking by it maybe.
I’ve got a walk in box kinda trap and it’s not even set off at all this rat has ruined a lot of my kids clothes and ripped up loads of things.
It’s out every night I can hear it.
Boyfriend says he’s gonna cement the holes up... like what’s that gonna do.
Any ideas please ???