Sullivan Mechanical

Sullivan Mechanical is a Hanover plumbing and mechanical contractor that Tim Sullivan opened in 2001 as a one-person shop, according to a Massachusetts Plumbers trade profile, before building it into the licensed outfit it is today. The company's name turns up on notable commercial work — it was the plumbing subcontractor on the MarketPlace building project for Cardinal Cushing Centers, alongside general contractor Connolly Brothers. Customers writing in 2023 and 2024 called the crew skilled and honest, praising the quality of the work on residential and commercial jobs. The Better Business Bureau gives the company an A+ rating (it isn't BBB-accredited) and lists 24 years in business under office manager Sue Johnston and president Tim Sullivan. One thing worth asking about directly: a federal court record lists T. Sullivan Mechanical Inc. and Timothy Sullivan as defendants in a case brought by a plumbers' union benefit fund — the filing doesn't say how it was resolved, so it's worth raising before booking. For a straightforward residential plumbing or mechanical job, the trade reputation and the commercial track record are real positives here; just confirm current licensing and ask about that filing up front.