Grading, Underground & Site Development Services
KW Construction provides full-service grading, excavation, underground utilities, and site development across the Central Coast, from King City to Santa Maria and throughout San Luis Obispo County.
With a complete in-house fleet and decades of hands-on experience, we support general contractors, developers, and municipalities with efficient, reliable groundwork that keeps projects moving.
Full Site Development
We handle everything required to prepare a site before construction begins.
- Demolition
- Pre-construction site prep
- Rough and finish grading
- Pad development for residential and commercial builds
- Driveway grading and regrading
- Coordination with general contractors and project teams
Whether it’s a custom home, commercial build, or municipal project, we set the foundation for everything that follows.
Excavation & Earthwork
From small trenching jobs to large-scale earthmoving, our team delivers precise, efficient excavation services.
- Mass excavation and earthmoving
- Trenching and backfilling
- Hydroexcavation for sensitive or tight-access areas
- Site clearing and material removal
We bring the right equipment and experienced operators to every job, no guesswork, no delays.
Underground Utilities
We install and connect critical underground systems with accuracy and compliance.
- Sewer lateral installation
- Water service installation
- Storm drainage systems
- Erosion control and site drainage solutions
- Septic system installation
- Dry utilities
We understand the importance of doing it right the first time, because underground work doesn’t leave room for mistakes.
Specialized Utility Services
KW Construction offers advanced capabilities that set us apart from typical grading contractors.
Hot Taps (Live Water Connections)
We are experienced in performing hot taps, connecting to live water lines without shutting down service. This requires precision, planning, and the right expertise.
Natural Gas Line Installation (Veriforce Certified for SoCal Gas)
Certified to install natural gas lines safely and in compliance with all regulations.
PG&E-Certified Conduit Installation Greenbook
Approved to install PG&E conduit systems, meeting strict utility standards and requirements.