Probably not that harmful, but it&#x27;s a liability issue and definitely worth addressing early if the house is to be sold in future.<p>The building I currently work in is going to get some plumbing work done and there is likely asbestos somewhere. The current word from above is that if any asbestos is found during the process the whole bulding will have to be evacuated until somebody from the appropiate authority sign it off as safe. Overeaction? Probably. We know that to cause cancer you need to be inhaling asbesto dust for years.  But the liability is too great that any other course of action would be deemed negligent.