About Sonoma Landworks
OUR STORY
For over four decades, Sonoma Landworks has served as Sonoma County's trusted partner for comprehensive septic systems, excavation services, and landscape supply solutions. Since 1978, our family-owned business has built a reputation for combining technical expertise with reliable service across residential and commercial projects throughout the region. Our integrated approach addresses the complete spectrum of property development needs, from complex wastewater treatment installations to precise site preparation and ongoing material supply requirements. This breadth allows us to support projects from initial planning through final completion, ensuring continuity and quality at every phase.
OUR SERVICES
Septic Systems & Wastewater Solutions
Advanced wastewater treatment demands specialized knowledge and proven installation techniques. Our septic system services encompass traditional tank installations, sophisticated engineered systems, and comprehensive leach field repairs. We work with leading system manufacturers including Infiltrator/Orenco, Norweco, Geoflow and more to deliver solutions that meet both regulatory requirements and long-term performance expectations. From emergency repairs to complete system replacements, our septic expertise covers conventional gravity-fed systems, pressure distribution and advanced treatment units with UV disinfection capabilities. Each installation receives careful site evaluation to ensure optimal function within Sonoma County's diverse soil conditions and topographic challenges.
OUR SERVICES
Excavation & Site Development
Precise earthwork forms the foundation for successful construction projects. Our excavation services range from building pad preparation and foundation excavation to complex grading operations and driveway construction. Specialized capabilities include land clearing, drainage, underground utilities, retaining walls, slide repair, and tight-access excavation, to name few. Site development projects require coordinated planning. Our comprehensive and thoughtful approach minimizes project delays and reduces overall project costs.
OUR SERVICES
Gravel Road Maintenance
Sonoma Landworks has many years of experience improving and maintaining gravel roads, driveways and parking areas all over Sonoma County. Gravel driveways and roads require maintenance as often as once a year. Factors that determine the frequency of maintenance have largely to do with slope and traffic. A steep section of gravel road will require more frequent maintenance. A section of road that is heavily used will require more frequent maintenance. Proper road grading, ditch cleaning and material selection will extend maintenance intervals. Sonoma Landworks will evaluate the current conditions and provide recommendations for long term grading enhancements if needed.
MATERIALS & SUPPLY
Landscape Supply in Downtown Guerneville
Our Guerneville location stocks bulk landscape materials, drainage products, septic system products and construction supplies. Bulk materials include various gravel specifications, organic potting soils and compost, ground cover options, and specialized soils for different applications. Professional contractors and property owners benefit from our extensive pipe and fittings inventory, including ABS, PVC, and corrugated options in multiple sizes. Filter fabric, infiltrators, septic risers/lids and custom concrete distribution boxes complete our septic system supply capabilities. Delivery services extend our reach throughout Sonoma County for projects requiring larger quantities or specialized scheduling. The integration between our construction services and materials supply creates unique value for customers managing complex projects. Materials procurement coordinates directly with installation scheduling, ensuring proper specifications and eliminating costly delays or compatibility issues.