Trusted Fencing Company in Delta, PA 17314 - Professional hardscapes

The main cause is frost heave from our seasonal freeze-thaw cycles, combined with Delta's clay-heavy soil. When moisture in the ground freezes, it expands and pushes posts upward or sideways. Over time, this can also affect concrete patios and retaining walls. Our solution is to set posts below the frost line (about 36 inches) and use gravel backfill for drainage, preventing movement.

Look for signs like bulging, cracking, or leaning sections, especially after heavy rain or thawing. In Delta, where slopes near Muddy Creek are common, poor drainage often leads to hydrostatic pressure behind walls. If you see gaps between stones or water pooling at the base, it's time for an inspection. We can reinforce the wall with proper drainage gravel and concrete footings.

Our approach is to use a 4-6 inch compacted gravel base with rebar reinforcement and control joints cut every 8-10 feet. This allows for expansion and contraction without cracking. We also seal the surface to prevent moisture penetration. For homes near the Mason-Dixon Line, we recommend a slight slope away from foundations to avoid water damage.