Your Local Basement Waterproofing Experts in Marietta-Alderwood

For reliable basement waterproofing, Marietta-Alderwood residents trust Three Brothers Waterproofing first. Marietta-Alderwood is a small town in Whatcom County, and its marine / oceanic climate shapes the work we do here.

Across Ferndale to Bellingham, our crews serve Marietta-Alderwood and the wider northwest Washington, tackling the basement waterproofing problems that come with Whatcom County's warm, dry summers and heavy winter rainfall. We know the local homes and route efficiently across all 2 ZIP codes.

Each Marietta-Alderwood job is backed by a written workmanship guarantee and a flat-rate quote you sign off on before we begin - no surprises. This is how Marietta-Alderwood residents trust Three Brothers Waterproofing.