For the most thorough and detailed excavation and demolition work in Humboldt, few firms can compare to Holtvogt Sand & Gravel. Built with quality as our primary focus, our reputation for flawless work stretches far and wide. With us, you get a service-oriented excavation partner that knows what it means to deliver top notch solutions, meet deadlines, and follow your project specifications. We value your business and will work hard to ensure you call us the next time you have an excavation job.