John P. Hanagan

John P. Hanagan is a plumber working out of 133 Old Groveland Rd in Haverhill, and the clearest trace of the work is a permit trail rather than a marketing presence: BuildZoom counts 11 permitted jobs — gas and plumbing work in Billerica, Methuen and Westford — spanning 2000 into 2017. No customer has posted about him. BuildZoom's page for the business carries no reviews at all, so there is no public account of how the jobs went. The licensing picture is the thing to sort out before calling. BuildZoom shows a Massachusetts plumber license, #8310, but marks its own license records as not verified, and the same page carries an alert that no active license is on file. It separately lists a home improvement contractor registration (#110618), a gas fitter license (#3631) and a pipefitter master license as inactive, each described as cancelled at some point. None of that settles the question in either direction. If you are considering him, ask for the license number directly and check it against the state's e-licensing board, and ask for references from recent jobs — there is no public history here to lean on instead.