California’s Excavation and Engineering Experts
From the California-Oregon Border to Sonoma & Monterey County
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SITE PLANNING
EXCAVATION
GRADING & PAVING
LAND DEVELOPMENT
DEMOLITION
UNDERGROUND UTILITY
MORE…
Trusted Excavation and Engineering Experts Since 2013
Founded in 2013, DW Excavation, LLC brings over a decade of hands-on experience in general engineering and excavation in California. Recognized for our commitment to quality workmanship and outstanding customer relationships, we offer a full spectrum of excavation and construction services. Our team takes pride in building long-term partnerships with homeowners, builders, and developers throughout Sonoma County and Monterey County.
Our core expertise spans site planning, utility trenching, land development, and water management, covering every phase of excavation and engineering. From the California-Oregon border down through Sonoma to Monterey County, we’re proud to serve communities with precision, reliability, and care.
We invite you to explore the trusted companies we work with—and discover how DW Excavation continues to set the standard for excellence across California’s Central Coast.
Companies We Frequently Work With
Comprehensive Excavation & Engineering Services
Proudly serving Sonoma and Monterey County, DW Excavation offers a full range of site development, grading, trenching, and underground utility services tailored to residential and commercial projects.
Site Planning
Site Planning & Permit Services for Residential and Commercial Projects
We provide professional site planning services to help you design and optimize land use before breaking ground, supporting both small and large-scale developments.
Paving Services
Asphalt Paving Services for Driveways, Roads & Commercial Lots
We offer durable paving solutions for driveways, roads, and commercial surfaces, delivering clean finishes built to withstand heavy use.
Grading Services
Precision Grading for Drainage, Foundations & Slope Management
Our grading services in California deliver precise leveling and earth movement, setting the foundation for structurally sound development and effective water drainage.
Excavation Services
Full-Service Excavation for Building Pads, Utilities & Land Prep
We provide expert excavation services for residential and commercial projects, ensuring clean, efficient site preparation throughout Sonoma and Monterey Counties.
Ponds and Road Construction
Pond Construction & Rural Road Building Services
DW Excavation designs and constructs functional ponds and access roads, combining environmental considerations with practical site needs for rural and large-scale properties.
Septic and Trenching
Septic System Installation and Utility Trenching Services
We specialize in septic system installation and utility trenching, delivering reliable, code-compliant infrastructure solutions for homes, businesses, and developments.
Land Development and Clearing
Land Clearing, Brush Removal & Site Development Services
Our land development and clearing services prepare properties for construction by removing vegetation, shaping terrain, and managing all early-phase groundwork.
Eco Remediation
Eco Remediation & Environmental Site Restoration Solutions
We provide environmentally focused remediation solutions to restore and stabilize land, support habitat health, and ensure compliance with environmental standards.
Erosion Control
Erosion Control for Slopes, Stormwater & Soil Stability
Protect your project with our erosion control services—designed to prevent soil loss, manage runoff, and safeguard your site during and after construction.
Demolition and Rehabilitation
Demolition Services & Site Rehabilitation for Redevelopment
Our team handles safe, efficient demolition of structures and site features, followed by expert site rehabilitation to prepare for future use or restoration.
Water Management
Drainage and Stormwater Management Solutions
We engineer and install stormwater systems that reduce flooding risk, control runoff, and meet environmental and municipal standards across diverse terrain.
Underground Utility
Underground Utility Installation: Water, Sewer & Electrical
DW Excavation installs underground utilities—including water, sewer, and electrical—with precision trenching and full adherence to safety and regulatory standards.
Material Supply
Construction Material Supply: Rock, Gravel, Soil & More
We provide and deliver high-quality aggregates and construction materials directly to your site, helping projects stay on schedule and within budget.
Foundation Contractor
Foundation Excavation, Forming & Concrete Services
From residential footings to large-scale foundations, we excavate and prep for strong, stable foundation systems built to last.
Get In Touch
Whether you’re planning a residential build or a large-scale development, DW Excavation is ready to help. Contact us today to discuss your project, request a quote, or schedule a site consultation in Sonoma or Monterey County.
Building Tomorrow's Landscape, Today
Latest Blogs
What Santa Rosa Homeowners Get Wrong About Site Plans
Your Santa Rosa project can look simple on paper and still run into permit trouble before excavation starts. A homeowner submits a plan for an ADU, drainage repair, or foundation
Why New Infrastructure Failures Are Increasing Sewage Clean Up Emergencies in 2026
In the past year, we’ve responded to more sewage backup calls across Sonoma and Monterey County than in the three years before combined. What we’re finding underground tells a consistent
How Do I Get My Site Plan Approved Faster? A 2026 Guide
If you're asking, "how do I get my site plan approved faster," you've probably just been surprised by a permit requirement you didn't expect. You thought a small shed, driveway