Call Us: 707-965-2425


We offer quality construction solutions— but we also believe in earning trust and building lasting relationships.

People and companies who have utilized our services in the past can offer feedback and recommendations about Helmer & Sons. This is a sampling of our clients. Additional references are available upon request.

Adventist Health Clinical Innovations
Attn: JoAline Olson
999 Adams St., Suite 107
St. Helena, CA 94574
(707) 963-3953

St. Helena Hospital Clearlake
Attn: Rex Shepherd
P.O. Box 6720
Clearlake, CA 95422
(707) 994-6486

Napa Unified School District
Attn: Don Evans
2425 Jefferson Street
Napa, CA 94558
(707) 253-3715

St. Helena Hospital & Health Center
Attn: Stan Tempchin
Deer Park, CA 94576
Phone: (707) 963-6495

Pacific Union College
Attn: Lisa Bissell Paulson, Ed.D.
Vice President for Student Services
One Angwin Avenue
Angwin, CA 94508
(707) 965-7362

Phone & Fax

707.965.2425 Phone
707.965.2982 Fax

Visit Us

910 Howell Mountain Road North
Angwin, CA 94508
Link to Google Map →

Mailing Address

P.O. Box 868
Angwin, CA 94508