Your Local Basement Waterproofing Experts in Mattawa

For dependable basement waterproofing, Mattawa homeowners choose Three Brothers Waterproofing first. Mattawa is a small town in Grant County, and its marine / oceanic climate defines the work we do here.

From Desert Aire to Schwana, our crews serve Mattawa and the wider central Washington, tackling the basement waterproofing problems that come with Grant County's warm, dry summers and heavy winter rainfall. We know the local homes and route efficiently across all 1 ZIP codes.

Each Mattawa job is backed by a written workmanship guarantee and a flat-rate quote you sign off on before we start - no surprises. That's why Mattawa residents trust Three Brothers Waterproofing.