JM Construction

JM Construction is a Cambridge general contractor whose written record so far comes down to one job, told twice: a flooded basement fixed fast. In a January 2024 review, a homeowner described posting a request on Thumbtack and getting a call back from James within 30 minutes; the crew was digging down to the foundation the next day, and the fix was a full basement waterproofing job replastered with type-S cement. A second reviewer that same month called the basement waterproofing a seamless process that addressed their concerns. Thumbtack's own profile lists James Maloney with 19 years in business and puts the company's specialties at roofing, masonry, chimney work, foundation repair and waterproofing, alongside 26 projects shown on the platform, but the only customer accounts on file are both about foundation and basement waterproofing, so that's the work with an actual track record behind it rather than just a category list. With just two reviews, there isn't much of a pattern to lean on yet beyond that one job going well. For a roof or chimney project, it's worth asking directly about recent examples of that specific work, since the reviews on hand don't cover it. For a wet or leaking basement in the Cambridge area, this is a contractor with at least one detailed, well-documented fix on record and a homeowner who said the pricing was broken down clearly upfront.