Connolly Construction Co Inc

Connolly Construction Co Inc is a general contractor working out of a PO box in Clinton, Massachusetts, run by William "Bill" Connolly Jr. BBB records put the business start date at January 1983, which makes it one of the longer-running contracting names in central Massachusetts at 43 years. Its credential holds up where it counts. The Massachusetts registry carries Home Improvement Contractor registration 109993 in the company's own name and shows it active; BuildZoom independently lists the same number and says it verified the registration active as of June 2026. Two sources landing on the same registration number, one of them the registry itself, is about as clean as a licence check gets. The traceable work is thinner and points somewhere specific. BuildZoom shows two permitted projects, both commercial: a $275,000 renovation of about 3,000 square feet of retail space with siding work in West Springfield in 2014, and a 20-by-40 canopy installation in Northampton in 2013. Those are western Massachusetts jobs and light-commercial in character, which is worth knowing if you are hiring for a house in the Clinton area — ask directly about recent residential projects and where the crew is working now. On the homeowner's side of it there is nothing yet. BBB lists the company as not accredited and "Not Rated" because it does not have enough information, and no customer reviews have surfaced on any source. For a company this old that mostly means it has never leaned on directories for work. Ask for several references from recent residential jobs, confirm registration 109993 yourself on the state's Contractor Hub, and get scope, price and insurance certificates in writing before anything starts.