Contact Us

EFI’s headquarters is located in Westborough, Massachusetts, with additional office and warehouse facilities in Southborough, Massachusetts and Kaukauna, Wisconsin.

Locations

Headquarters

40 Washington Street
Suite 2000
Westborough, Massachusetts 01581-1088 USA
800-876-0660

Southborough Office

1 Willow Street
Suite 2*
Southborough, Massachusetts 01772-1026 USA
800-876-0660

* some GPS see this as 1 Harvest Lane

Kaukauna Office

2031 Progress Way
Kaukauna, Wisconsin 54130 USA
800-962-7015

Contacts

Utility Customers

866-807-1317
Fax: 508-870-0033 (Customer Service)
Fax: 508-870-9933 (Data Entry)
Email: solutions@efi.org

Homeowners

800-379-4121
Fax: 508-983-7880
Email: customerservice@efi.org

Wholesale Customers

800-876-0660 x1
Fax: 508-870-3106
Email: wholesale@efi.org

Warehouse

508-303-9329
Fax: 508-366-5251 (Warehouse)
Fax: 508-366-8371 (Purchasing)
Email: receiving@efi.org (Warehouse Receiving)