Knights Masonry & Foundation Waterproofing

Knights Masonry & Foundation Waterproofing works out of a Boston office on School Street, taking on the calls that come after a basement floods or a foundation starts to crack. The company says on its website that it's been doing this since 1985 and has more than 40 years under its belt as a family-owned, locally run outfit — though its Better Business Bureau file tells a different story, listing only four years in business and a corporation formed in 2024, a gap worth asking about directly before hiring. On Google, 28 ratings average five stars, and the pattern holds from the earliest reviews on file in 2023 through this year. In the last few months, one homeowner had a stubborn basement leak fixed with a newly installed sump pump and called it a permanent solution; another, a repeat customer, brought them back for both a foundation repair and roof work and said the crew shows up on time and explains what they're doing as they go. Neither left a complaint, and that streak holds across the wider run of reviews, where the recurring subject is foundation cracks, settlement, and masonry and repointing work described as careful and clean. Before booking, it's worth pinning down that founding-date discrepancy, since a company's actual track record matters for warranty and accountability down the line. It's also worth noting that most of what shows up about them outside of Google — a basement-waterproofing directory, a home inspector site — just restates the same 28-review, five-star figure rather than adding independent accounts, and only three reviews have landed in the past six months despite the deeper history. The BBB lists it as A+ but not an accredited business, with a second address in Woburn alongside the Boston office. For a leaking basement or a cracking foundation, the reviews point to a crew that shows up, fixes the problem, and explains it along the way — just get the company's history and the scope of work in writing before signing anything.