Actually, it's not bad. The house needs a lot of work anyway, such as new roof, trim, siding or painting etc. It has been REALLY neglected. But from the bees, no problem. I opened up the stud spaces where they were, removed them, scraped out the remaining bur comb and propolis, spraypainted and stuffed the cavity with insulation. Replaced the cut siding and caulked. Good as new(or at least as good as it was!).