Fence Builders Chattanooga TN | Call Precision Fence

The primary cause is the humid subtropical climate we experience in the Tennessee Valley. Frequent rain, especially during spring and summer, combined with poor drainage in some yards, traps moisture against the wood. This creates ideal conditions for rot, mildew, and warping, particularly if the fence was not installed with proper ground clearance or treated lumber.

Look for soft or spongy wood near the base of the posts, peeling paint or stain, and visible mold or mildew. In neighborhoods like St. Elmo or Red Bank, you might also notice the fence leaning after a heavy storm, which often indicates the posts are rotting below the soil line.

We recommend replacing affected posts with pressure-treated lumber or rot-resistant options like cedar. Our team also improves drainage by setting posts in gravel and concrete, which helps them dry out faster. For severe cases in older Chattanooga homes, we can install a complete new fence system designed to handle our local moisture levels.