X&F Fences | Trusted Fence Installation in Los Angeles, CA

The primary cause is soil erosion, which is common in Los Angeles due to seasonal heavy rains and the sandy, loose soil found in many hillside neighborhoods like Silver Lake or the Hollywood Hills. Over time, water washes away the dirt around the post base, creating voids that cause the post to shift or sink. Earthquakes can also loosen the soil further, accelerating the problem.

After a quake, check for new gaps between fence panels and the ground, cracked or splintered wood near the posts, and misaligned gates that no longer latch properly. You might also see that the fence is no longer level or that posts have shifted out of vertical alignment. These signs indicate the structure has been stressed and may need reinforcement.

The most effective solution is to install fence posts with deep concrete footings that extend below the frost line and into stable soil—typically 24 to 36 inches deep. For earthquake resilience, we recommend using flexible materials like chain link or wrought iron with reinforced hinges, or adding seismic brackets to wooden fences. This allows the fence to sway slightly without breaking.