How to Fix a Leaning Fence Post

First off, dig up the soil around the fence post to expose the existing concrete base. Mix up some concrete and water in a wheelbarrow and have it ready to go, it should be the consistency of oatmeal. Re-level the fence post and add a support beam to hold it in place.

With the post supported, fill the hole with the concrete compound to about an inch below ground level. Work the air out of it with your shovel to ensure that it fills the hole completely. Once the concrete has hardened, you can add soil and grass seed over top to cover it.

If you’re looking for an alternative to concrete, consider using Sika Post Fix. You’ll need to follow the directions in from the first method to expose the existing concrete under your post. Then, take the bag of Sika Post Fix and break the seal inside, allowing it to mix together. Rub it gently on an even surface to mix it well. The bag will heat up and start expanding.

Cut the bag open and pour it into the hole. It will expand rapidly and harden within 3 minutes. Be sure to hold the post level and still to ensure it is straight. Once it has hardened enough to stand by itself, allow it to sit for about 3 more hours. It will harden completely, and you can cut any excess, above-ground foam with a knife. Then simply fill the top of the hole with soil and grass seed and you’re finished.

If your leaning post has rotted, or you need to install a new one, consider using a ground spike. It’s an easy alternative to concrete or foam, and only requires simple tools.

Simply drive the spike into the ground with a sledgehammer, checking for level every few hits. Once it’s firmly in the soil, you just drop the 4 x 4-inch post into the square hole and tighten the bolts. Once your post is secure, reattach any support boards and then reattach your fence boards and your fence should be good as new.