Water is one of the most common contributors to sagging floors, as moisture naturally migrates through the soil surrounding your foundation. In Alexandria, older drainage systems, proximity to the Potomac River, and periodic heavy rainfall can allow moisture to reach the sill plate, wood beams, and floor joists. These wooden components rest directly on the foundation and form the framework that supports your floor. When moisture repeatedly contacts this framing, the wood begins to deteriorate, leading to loss of strength and the need for sagging floor repair in Alexandria, Virginia.