A Massachusetts specialty contractor founded in 1992, working across thirteen states from New England to Florida. It was the first UL Qualified Firestop Contractor in the country, is FM 4991 Approved, is a charter member of the Firestop Contractors International Association and is an ABAA-accredited air barrier contractor. Holding both firestop accreditations is unusual — the two audit programmes are independent — and the firm also carries out fire door inspection and repair.