SRE is a fully licensed, bonded, insured, and OSHA certified excavation company along with a Licensed Timber Operator-A license, providing a wide variety of earthwork services at competitive rates. Contracts available upon completion of estimate. C-12 CA Lic.# 1131717 LTO: A014301 Cut & Fill to Grade Road construction Grading Trenching Paving Erosion control Watercourse mitigation Ditch cleaning Drainage culverts Ponds Rock spreading Stump removal Brush clearing/removal Concrete/asphalt removal Retaining walls Call or text: 707-599-8304