How old are the puppies? What breed are they?
If they're still pretty young (and large breed dogs mature later), I'd say it's a bit soon to start making a fuss. There has to be a certain amount of leaving them to cry, so they get used to being alone. If you don't you end up with a spoiled dog who can't be left.
I used to worry terribly about my current dog kicking off when we left the house, she used to scream her bloody head off. We used to go out for a few minutes and then come back, and gradually build up the time so she got used to it. However, my neighbours were very understanding and by the time she was 4 months she only used to create for about 30 seconds, until I'd gone round the corner, apparently. (It was like separation rage, imo, not separation anxiety!)
If the dogs are being left for long periods and are older, the owners need to address this by going our for short periods and gradually building up the time the dogs are alone until they're used to it. And getting them nice and tired before they go, so the dogs sleep.
If they're not doing any of this, you need to call the council and report as noise nuisance and possibly an animal welfare issue. But do talk to them first, they might not realise.