Keller Waterproofing & Foundation Specialists

Keller Waterproofing & Foundation Specialists is a locally owned, family-operated basement waterproofing and foundation repair contractor serving Boston, Somerville, Worcester, and surrounding New England, self-reporting service since 1972 and stating it uses its own trained crews with no subcontracting. The company holds Massachusetts HIC #153750 and has been BBB-accredited with an A+ grade since 2006. The review record is deep and unusually trust-focused: several reviewers, across 2022 through 2025, describe owner Jim Keller or his crew visiting for an estimate and telling them they didn't actually need the work, or recommending a simpler fix instead of a bigger sale. Recent 2026 reviews describe exterior foundation wall waterproofing and a basement that stayed dry through torrential downpours, and the multi-year history includes French drain and sump pump installations, foundation and footer repair, and comprehensive drainage solutions for chronic water problems. Worth asking about before booking: a 2023 review describes a no-call, no-show for a scheduled walkthrough after the reviewer had held off other contractors expecting the company's strong reputation to hold. For homeowners with a wet basement or foundation issue, the depth and consistency of this review record, along with the repeated pattern of honest, non-oversold assessments, is a strong signal — worth confirming the company's exact tenure directly, since the BBB profile and the company's own website give different figures.