Stabilise loose panels and heavy gates first
Stop work if a fence could fall onto people, vehicles or a public area. Check for buried services before digging around posts.
MOST LIKELY CAUSES
Start with posts, fixings and alignment
Symptom variations Match the movement, lean or latching pattern. ⌄
- Panel moves when pushed
- Gap opens beside a post
- Fixings rattle in wind
- Panel leans at one corner
- Rails pull away from the post
Quick checks Safe checks before dismantling the fence or gate. ⌄
- Check both supporting posts for movement.
- Inspect every clip, screw and rail connection.
- Look for split timber around fixings.
- Check whether the panel sits fully on the gravel board.
- Assess wind exposure and panel condition.
Step 1 — Stabilise the panel Make the smallest safe correction and retest. ⌄
Support it temporarily so it cannot fall while working.
Step 2 — Repair the fixing points Make the smallest safe correction and retest. ⌄
Replace failed clips or screws and repair split rails.
Step 3 — Address post movement Make the smallest safe correction and retest. ⌄
Do not secure a sound panel to a failing post.
Why the problem happens How wind, weight, moisture and fixings affect the structure. ⌄
Fence panels act like sails in strong wind. Small fixing movement quickly becomes larger as holes loosen and rails flex.
Advanced checks Further diagnosis for persistent outdoor faults. ⌄
- Check post spacing.
- Inspect hidden rot at rail ends.
- Assess panel squareness.
- Check gravel-board support.
- Review whether wind gaps are needed.
Tools and information needed Useful items for accurate checks. ⌄
- Screwdriver or drill
- Exterior screws
- Spirit level
- Support timber
- Safety gloves
Parts that may need replacing Common fencing and gate components linked to this fault. ⌄
- Fence clips
- Exterior screws
- Replacement rail
- Post repair spur
- Replacement panel
When to call a professional Conditions that should end basic DIY diagnosis. ⌄
- The panel could fall onto a public area.
- Posts are rotten or fractured.
- The fence is very tall.
- Boundary ownership is unclear.
- Several bays are moving together.
Frequently asked questions Common fence and gate questions. ⌄
Can I just add more screws?
Only if the timber and post are sound.
Should the panel sit on the ground?
Usually no. A gravel board or clearance helps prevent rot.
Why does it keep coming loose?
Wind loading or post movement may be the real cause.