Fence Contractors San Bernardino CA | Call Bolanos Landscaping Services

The primary cause is the extreme heat and direct sunlight in San Bernardino, which rapidly dries out the wood, leading to uneven moisture loss. This makes boards shrink, twist, or bow. Additionally, temperature fluctuations cause expansion and contraction, while soil erosion around posts can destabilize the fence, exacerbating warping. Using pressure-treated or composite materials and proper sealing helps mitigate this.

Look for visible signs: leaning or tilted posts, cracks in the concrete at the base, or exposed roots around the post. After rain, check for pooling water or washed-out soil near the fence line. If the ground feels loose or spongy around a post, erosion has likely compromised its stability. Early detection prevents costly repairs.

We install deep concrete footings (at least 2 feet) to anchor posts securely, and we add gravel or drainage pipes to divert water away from the base. For existing fences, we can replace warped boards with heat-resistant materials like cedar or vinyl, and reinforce posts with steel brackets. Our masonry team also builds retaining walls or concrete collars to stop soil erosion around posts.