Hello there large wasp nest... High up in a tree is not usually a problem, but when they build one of these soccer ball sized nests on your deck its a bit more concerning. Wasps and hornets can be very aggressive. I'm not tackling one of these without a well fitted bee suit. This is what some have referred to as a "nope nest". As is in, nope i'm not dealing with that. Smart move, call the exterminator instead. I will put on my "not today" protective layers and go to work. 10 points awarded to those of you that picked up on that Game of Thrones reference. In the end, it's much better to leave these types of services to professionals that have the experience, tools and a touch of crazy to get it done!