Not all water damage announces itself. A Sierra Madre mid-century home experienced what the owners thought was occasional dampness near their bathroom, but six months later, when selling their home, the inspector discovered extensive subfloor rot extending eight feet beyond the visible moisture. The hidden leak had compromised floor joists, damaged adjacent walls, and created mold growth inside the wall cavity. What could have been a straightforward repair became a major restoration project because the warning signs—slight floor softness, a musty smell after rain, minor tile grout cracks—went unaddressed. Leo’s work included structural repairs, subfloor replacement, moisture remediation, and complete floor restoration that saved the sale but highlighted how expensive delayed action becomes.