Verified record
E.M. Duggan Inc. is a Canton, Massachusetts mechanical contractor with roots reaching back to 1891. Its documented work spans plumbing, HVAC, gas and piping, sewer laterals, boiler and water-heater work, and fire suppression, serving commercial and other larger projects. BuildZoom lists 191 projects, a 97 score, and verified active licensing status, while trade coverage describes the company as a fifth-generation family-run contractor. The public material is professional and project based rather than a customer review history. E.M. Duggan may fit substantial plumbing and mechanical work. Confirm the exact division, permit responsibility, project schedule, and warranty for the proposed job, particularly where plumbing, HVAC, gas, or fire protection systems overlap.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Duggan E M Inc Plumbrs. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$290 – $710
Typical plumbing job around $500
“As E.M. Duggan celebrates 135 years, the company finds itself at a rare intersection of history and innovation.”
“E.M. Duggan Inc. announced the launch of Duggan Innovative Solutions (DIS), a specialized division”
“Contractor of the Year: E.M. Duggan | phcppros ... Few mechanical contractors have sustained a legacy quite like E.M. Duggan. Founded 134 years ago, the Canton, Massachusetts–based firm, has seen its markets change many times over. Yet it’s the company’s ability to embrace change that continues to define it. Under the current leadership of Principal Len Monfredo and his executive team, including Rick Dorci, Kevin Walsh, John Kulibaba and several division heads, the organization has continued to strengthen its performance and strategic direction. ... E.M. Duggan remains a family-owned operation”
“A fifth generation, family-run mechanical contractor dating back to 1891”
“In 128 years and five generations, Canton, Massachusetts-based E.M. Duggan Inc. hasn’t lost its business principles or its family-friendly culture. The mechanical contracting company specializes in plumbing, HVAC, and fire protection and offers preconstruction, CAD, and prefabrication services to its clients in the commercial and industrial markets. ... Founded in Boston in 1891 by Edward M. Duggan, the company started out as a mom and pop shop. Once Edward Duggan passed away, the family decided to move the business to the suburbs of Canton, Massachusetts. ... In 1967, E.M. Duggan was one of t”
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1 change recorded — last scanned Sep 9, 2026.
Transparent diagnostics5.0
Quoted price holds5.0
Midnight and weekend help5.0
Same-day and weekend calls for burst pipes and lost heat5.0
Broad plumbing and HVAC range5.0
Rapid response5.0