Dog Pooping in House at Night?

I have a 2 year old Bichon Frise. I'll start from the beginning. He has always slept downstairs in a crate which is just big enough for him to turn around in, but I always left the crate door open as he was house trained. Anyway after I had my baby the dog started pooping in the house so I decided to start closing his crate door again at night. It worked fine for a while and then he started pooping in his crate. But he doesn't just poo, he walks in it and then jumps on furniture, jumps up walls, and he even managed to climb on my kitchen worktops one night!

I have always fed him first thing in a morning and again at tea time and he used to poo about an hour after eating. I have started only feeding him in a morning, but he won't poo all day even though he has regular garden breaks and I purposely put him in the garden for an hour or so before bed, but he just won't. It's as if he saves it til we have gone to bed. Can anyone please help me?

By Jade