Dynamite waterproofing and masonry

Dynamite Waterproofing and Masonry is a Boston company whose reviews center on one recurring name, Jack, described handling basement leaks, foundation repairs, chimney work, and masonry steps across dozens of jobs. Google shows a 4.7★ average from 74 ratings. The stronger reviews carry real texture: a 2025 review describes a three-day job on a fieldstone foundation that had been leaking with crumbling mortar between the blocks, finished in noticeably better condition; another describes Jack arriving within a specified two-hour window and completing inspections and tests; others describe balcony waterproofing meant to prevent recurring leaks and a walkway repair at an apartment building. One reviewer describes Jack going out of his way to help with a basement issue in a situation where, in the reviewer's words, "anyone else would have walked off the job." A number of the shorter reviews repeat very similar phrasing to each other — two describe a chimney "examined and fixed in no time," and two nearly identically credit Jack with special recognition for fixing or repairing a leak in a basement — which is worth knowing about even though it doesn't necessarily mean anything false, since it sits alongside plenty of reviews with real, distinct specifics. There's also a cluster worth flagging: four one-star reviews arrived within about two and a half weeks in August 2025 — "disappointed," "poor work," "sloppy work," "incompetent employees" — each brief with no detail beyond the complaint itself. It's a notably tight grouping in an otherwise long, mostly positive record, and it isn't clear from the text alone whether it reflects a rough stretch of jobs or something else. Dynamite fits a homeowner with a basement, foundation, or chimney leak who wants a company with a long, largely positive local track record — the specific accounts of fieldstone foundation and balcony work are the most substantive signal here — while being aware that a short run of negative reviews exists in the same period as many of its more detailed positive ones.