Helmer & Sons, Inc. (HSI) is a family owned construction company located in the Napa Valley (Northern CA).  Licensed as both a General Building and Engineering (Sitework) Contractor, HSI has completed projects in Napa, Sonoma, Solano, and Lake Counties since 1975.

With more than 25 years of experience HSI can construct or remodel the school, hospital, or office building you are planning as well as prepare your site for development by completing the grading, underground utilities, and paving.  HSI has completed large and small projects for public agencies, developers, general contractors, small businesses, and homeowners. 

These web pages provide a sampling of projects in progress and completed over the past few years.  For a more detailed listing of projects, clients, and/or references please give HSI a call.

Street & mailing address:

910 Howell Mountain Road North
P.O. Box 868
Angwin, CA  94508

707.965.2425    Phone

707.965.2982    Fax

click here to send an e-mail to Helmer & Sons or check out the "Contact List" page

Last modified: 04/14/2008