[alaskayorkie]

I'm just brainstorming here because I've never being in your situation. However, it sounds like they are not having accidents when they're closed in their laundry room because they've learned that is their space, sort of like crate training. But they've learned that everyplace else in the house is fair game.

I'd suggest keeping a close eye on them for a while when they are wandering the house. Occasionally, say "Wanna go outside and pee?" And then take them outside. If they do their business, praise, praise, praise and treat. Don't scold accidents, but take them to the doggie door and let them know that's where you want them to go.

Don't fret. It sounds like they're halfway there, and all it takes is a couple times where they "get it," for them to learn.

Hopefully others will have some more specific tips!