Sierra Pre-Casting Company Company: Sierra Pre-Casting Company Contact: Guy Ostenson Address: 10239 Ophir Road City: Newcastle State: CA ZIP Code: 95658 Business Phone: 1 530 885-3472 Business Fax: 1 530 885-3492 E-Mail: osierraprecast@aol.com CSLB Number: https://www2.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=417533 Specialty: Concrete, Precast, Ditching & Trenching Contractors, Earth Moving Equipment, Excavating, Commercial, Excavating, Residential, Grading, Commercial, Grading, Residential, House Pads, Ponds, Pump Sales & Service, Septic Systems & Excavating, Septic Systems, Sand Filtration