Fence Repair: Fixing Leaning Posts, Pickets & Sagging Gates
A wood fence that leans, has gaps where pickets have popped loose, or a gate that drags the ground is both an eyesore and a security and privacy problem. Most fence failures trace back to the posts, which rot at ground level or work loose in the soil. After a summer storm rolls through, whole sections can lean or come down even when most of the wood is still good.
Fence repair starts at the posts because they carry everything else; if a post is rotten or loose, repairing the rails and pickets attached to it is wasted effort. The fix may be resetting a post in fresh concrete, sistering a steel or wood reinforcement to a post that snapped at the soil line, or replacing rails and pickets that have warped and pulled free. Gates are their own challenge because they sag under their own weight and need bracing or hardware to swing true. Ground moisture, clay soil that holds water, and termites all push fence posts toward early failure, so drainage and treated material matter.
How the job is done
- 1
Walk the line and find the failures
We push on each post and section to locate the ones that are loose, rotten, or leaning. This separates true structural repairs from cosmetic picket fixes.
- 2
Reset or replace failed posts
Loose or rotten posts are dug out and reset plumb in fresh concrete, or a pressure-treated replacement is set. A post that snapped at grade can sometimes be braced with a driven steel anchor.
- 3
Repair or replace rails
Sagging or cracked horizontal rails are re-secured to the posts or swapped for new treated lumber. Proper rail support keeps pickets from drooping later.
- 4
Refasten and replace pickets
Loose pickets are re-screwed, and split, warped, or rotted ones are replaced to match. Using screws rather than smooth nails keeps them tight through seasonal movement.
- 5
Rehang and brace the gate
A dragging gate is squared and fitted with an anti-sag brace or cable, fresh hinges, and a properly aligned latch so it swings and closes cleanly.
- 6
Seal and finish exposed wood
Cut ends and new lumber get sealed or stained as appropriate so the repairs weather evenly with the rest of the fence.
What a pro checks
- A pro checks the post at the soil line, not eye level, because that is where rot and termite damage hide.
- Clay-heavy yards hold water around posts, so adding gravel at the base for drainage helps the next post last longer.
- A common mistake is replacing pickets on a fence whose posts are already failing, which just delays the real repair.
- Setting a post without bracing it plumb while the concrete cures almost guarantees a lean within weeks.
- Gates fail most often from sag, not hardware, so an anti-sag cable across the frame often outlasts simply buying bigger hinges.
- Termite activity near a wood fence is worth flagging, since it can point to risk for the home itself.
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Frequently asked questions
Can a leaning fence post be saved or does it need replacing?
If the post is still solid and just loose in the ground, we can often reset and re-brace it. If it has rotted through at the base, it needs replacing. We check the wood at the soil line to decide.
Why does my gate sag and drag the ground?
Gates carry weight on one side and gradually rack out of square, especially if a hinge post has shifted. We re-square the gate, add a brace or cable, and reset the hardware so it swings level.
Should I repair my old fence or replace the whole thing?
If most posts are sound and only a few sections have problems, targeted repair is usually worthwhile. Widespread post rot or termite damage often makes replacement the better value. The right call depends on the fence, so it helps to have it looked at.
How soon should storm-damaged fence sections be fixed?
Fairly soon, since a leaning section puts extra load on neighboring posts and can pull more of the fence down. Securing it promptly limits the damage and keeps your yard enclosed.
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