Water damage due to an ice dam during one winter weather thaw in West Hartford, CT. After the recent snowstorms, we've received many phone calls from people with water damage due to ice dams in their homes. A roof leaking water into your structure’s interior walls, ceilings, and floors is not a great picture. Ice dams are a leading culprit for water leaks during the winter seasons. They form when heated air melts roof snow above and behind the dammed up ice. When the trapped water cannot safely flow or run off the roof, it can backflow under the roof's shingles and into the structure's interior areas. These homeowners had water leaking down through their walls. SERVPRO had to cut the affected walls under the windows to prevent mold from developing; protecting the hardwood floors.