Sean Duffy
Principal at H&d Mechanical
Based in Upper Marlboro, United States
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Seniority
C-Team
Department
Construction
Location
Upper Marlboro
Industry
Construction
Company size
24
Contact information
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s•••••••@hdmechanical.net
Phone
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Background
About Sean Duffy
A third-generation plumber, Sean has worked at all levels of the industry, starting out…
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