We had our whelping box in the conservatory in the old house (winter and heated, so no heat regulation problems) which had awoindow from thelivign room to the conservatory. So I let people visit as much as they liked from about a week old, when Mum was settled (In fact, she would probably have welcomed anyone the night of the births! ) but on the understanding they coul dlook at the pups through the window and I would hold them up for them to see, but they couldn't go in the room with the pups until 4 weeks old due to the infection risk.

From 4 weeks, they could go in, shoes off, washed hands. Most people chose their pups at 4 weeks, as all have gone to pet homes.

I preferred it that way as I got to meet the new owners more. Most visited 2-3 times a week before they could even go in with the pups.