Isabel, for the dogs you will need a pet passport. Basically it is a document that is submitted by your vet to the minister of (I think) foreign affairs. They will have to have a rabies shot no more than 30 days before. If you will be going to the UK there is a 6 week quarantine and you will be responsible for all expenses for the dogs while in quarantine. You can find international movers such as DHL and many others who do furniture, boxes, etc. They can be expensive. We shipped some stuff to Italy and it wasn't much. Weight was around 200 lbs or so and it cost us 1600 plus we had to pay a customs fee when it arrived. You will have to check with your vet to be sure what is needed in case things have changed. And same goes with the movers. But this is what we had to do from Canada to Italy.