Tandem Services

A Groveland operation with a longer permit trail than public profile. BuildZoom lists Tandem Services at 10 Merritt ave with John Ferguson as owner, and the permits on file sketch the range of work: a full bathroom put into a basement in Beverly in 2014, a $21,000 upper-deck reframe with composite decking and railings in Malden, a residential electrical permit in Haverhill for a kitchen and bathroom remodel, and a trench permit in Lancaster in 2024. Pulling permits in four different Massachusetts towns over a decade counts for something; plenty of small operators skip that step. What to settle before hiring is the registration. BuildZoom shows Massachusetts license #176762, a general contractor / home improvement contractor registration, as inactive — expired 09-24-2025, rechecked as expired in May 2026, and noted as having been cancelled at some point. That is the directory's reading of the state file rather than a confirmation, but home improvement work in Massachusetts is not one of the specialties exempt from registration, so a lapsed one matters. BuildZoom scores the company 0 for that same reason, and nobody has reviewed it there. So: ask whether the registration was renewed and under what number, check it yourself with the Massachusetts Office of Consumer Affairs and Business Regulation, and ask for references from the past year or two, because there is no public review history to fall back on.