Stronghold Foundation & Waterproofing

Stronghold Foundation & Waterproofing is a Quincy-based foundation and basement specialist — waterproofing, drainage, masonry, and chimney work — that says it's been family-owned since 1980. Its Massachusetts home improvement contractor license is verified active, and the same license number shows up correctly on its Angi profile. The strongest reviews describe real structural fixes. This spring, a customer whose basement flooded during every rainstorm said the crew installed a full perimeter drainage system and stabilized the foundation walls, with the project lead checking in multiple times to confirm they were satisfied. A similar account from early 2025 described a crumbling foundation letting water in — a technician named Steve walked the homeowner through exactly where the water was entering and quoted a price the customer called fair next to competing estimates. Chimney work comes up too: three Angi reviews from January 2026 described chimney leak repairs and a full chimney rebuild, both finished on schedule. Not every job went cleanly. In a June 2026 review, a customer who paid for both chimney repair and basement waterproofing described dust from the chimney demolition getting into the windows, a furnace and washing machine that stopped working after the basement work, and marks left on the driveway from ladder placement — issues the company addressed by refunding the service calls, and the customer still said the chimney itself looked better afterward. There's little else to flag: the license checks out, the Angi and Google numbers agree, and the one negative account was handled with a refund rather than left unresolved. For foundation or basement water problems in the Quincy area, the specific fixes described here — drainage systems, wall stabilization, chimney rebuilds — are the kind of work this company is actually shown doing.