This sounds like the normal mess that comes with having guinea pigs. What is your cage set-up? Having appropriate sized cage walls can help a bit with keeping most of the mess in the cage (as opposed to on the floor), but they will kick some out and some will fall out while cleaning the cage, etc. It is best to spot clean (poo pick from fleece and where ever else necessary) daily. Remove any wet bedding at least once per day. Full cage clean at least once per week. Regular cleaning keeps your pigs healthier, but will also cut down a bit on the mess. There are a lot of UK members with more experience than me, but given the time difference they are likely sleeping now. They will be along when they can and will hopefully have more advice for you.