Tonya I think that is you best bet. If it is a cold then all you can really do is keep them comfy for a few days. I would probably vote for the dust from the remodel. I know that Bob take to sneezes if we dust a lot but it is usually gone after a day or two.

If it does keep up I would agree that taking him to the vet was a good bet, if nothing else just to ease your mind.