Your Local Basement Waterproofing Experts in Portland

For reliable Basement Waterproofing in Portland, Portland homeowners trust Three Brothers Waterproofing first. Portland is a large city in Cumberland County, and its humid continental climate defines the work we do here.

From South Portland to Westbrook, our crews cover Portland and the wider southwest Maine, tackling the basement waterproofing problems that are common to Cumberland County's warm summers and year-round precipitation. We understand the local homes and move fast across all 12 ZIP codes.

Each Portland job comes with a solid workmanship guarantee and a flat-rate quote you approve before we start - no hidden fees. That's why Portland homeowners keep calling Three Brothers Waterproofing.