Do they look like Spider webs Kelly and what time of day do they appear? What kinds of insects do you feed your Beardy? Have you fed anything in the past that could spin webbing and could some still be hiding in the viv?
What does your enclosure look like? is it front opening or does it have a mesh top that spiders could get into?
A house spider may be in one of the corners of the enclosure or along a ridge etc. It's not necessarily harmful though. Do you live in an area that has venomous spiders that would cause concern? A small house spider is probably feeding on fruit flies or gnats or similar and isn't likely to pose a problem. If you want to get rid of them you could try running the hose attachment from a vacuum around the corners of the enclosure and see if the webs re-appear.