Fences are constructed to support themselves with posts that are placed every so many feet depending on the height. However, when the fences are located in certain areas with strong winds, a little extra support might be required. You can help anchor the fence by attaching it to the wall of a building when it comes in contact with one.
Slip C-shaped brackets over the post and up against the wall if it is a chain link fence; use a square-shaped bracket if it is a wood post.
Mark with a pencil where the screws should be located, and then take the brackets out.
Drill pilot holes into the wall. For concrete or brick walls you will need to use a masonry bit. The pilot hole needs to be smaller in diameter than the screws that will be used.
Place the brackets back over the posts and situate them over the pilot holes.
Drill in 3-inch screws to attach the brackets and the post to the wall. Two brackets will secure the fence fairly well but three is better.