Contact Us

If you are a new customer in need of service, click here to expedite the process by filling out our online service intake form.

If you are building a new home or renovating your existing home, click here to expedite the process by filling out our online new construction intake form.

Nelson Mechanical Design (NMD) has a new phone system! After dialing 508 696 3120, please use the following extensions:

Service Manager:   please press 1 to reach Marlon Dwyer for all service scheduling and invoicing.  His email is

Bookkeeping:  please press 2 to reach Clara Matherly for all bookkeeping and financial statements.   Her email is

New Construction:   please press 3 to reach Dave Sprague for all new construction projects at NMD. His email is

Mini-Splits:   please press 4 to reach Everett Walsh for all mini-split projects at NMD.   His email is

Human Resources, Marketing, Accounting:  please press 6 to reach Jen Adamson, Chief Financial Executive at NMD.   Her email is

Service Invoice and Statement Queries:    please press 7 to leave a message for our accounts receivable department.  The direct email is

Brian Nelson, please send him email at

Our mailing address is Nelson Mechanical Design, Inc., 8 North Line Road, Suite B, Edgartown, MA 02539

By Phone: 508-696-3120
By Fax: 508-687-9565