Mon-Fri 8:00am to 4:00pm ET
Phone: 443-949-9842
Fax: 443-949-9863

Mail Us

sduffy@hdmechanical.net
eharley@hdmechanical.net
jkushner@hdmechanical.net

Address

7703 Crain Highway

Upper Marlboro, MD 20772

Contact Us

Address

7703 Crain Highway
Upper Marlboro, MD 20772

Phone Number

443-949-9842

About Us

Founded by Sean Duffy and Erik Harley in 2009, H&D Mechanical is a mid-size mechanical contractor based in Upper Marlboro, Maryland. H&D has an established record of superior work in a variety of settings, including medical, scientific and commercial projects.

Contact Us

7703 Crain Highway
Upper Marlboro, MD 20772

443-949-9842

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