This is great for small repairs. The squirrels around my house like to try and get in when the window is open, and pick small holes with their nails before I scare them away. That is the perfect place for bugs and flies to get into the house. This works great on those spots. The only problem is trying to get to the other side of the screen so you can get them to stick together. If you've got a buddy on the other side of the screen, you can get a nice repair.