At SH Siteworks, we provide professional underground utility installation and infrastructure services in Sonoma County, Napa County, Marin County, and across Northern California. Our experienced team installs water lines, sewer systems, storm drains, underground conduits, and utility infrastructure with precision, ensuring every project meets local building codes, safety standards, and long-term durability requirements.

Proper underground infrastructure is critical to the success of any construction or development project. Our operators work closely with contractors, developers, engineers, and property owners to ensure utilities are installed accurately and efficiently—preventing costly delays, rework, or compliance issues.

We specialize in site preparation and underground utility systems for:

✔ Residential developments
✔ Commercial construction projects
✔ Property utility upgrades
✔ New construction infrastructure
✔ Storm drainage and water management systems

Using professional equipment and years of field experience, we ensure every system is installed correctly, inspected properly, and built to last.

From new utility installations to infrastructure upgrades, SH Grading & Excavating delivers dependable results that keep your project moving forward.

📞 Need underground utilities installed? Call SH Grading & Excavating today for a free estimate.