Geo Aggregates

About

Geo Aggregates LLC | 1221 N.

Story

Why Select Geo Aggregates?

Competitive pricing along with dedicated employees who are committed to quality products and superior customer service make us the North Coast leader in supplying a full spectrum of washed and unwashed aggregate materials, sand and soils.

We custom crush our products in our own quarries according to Caltrans and ASTM guidelines, allowing us to create special products to meet your specifications.

Our 10 Mile Quarry Wash Plant serves government agencies, businesses, contractors, landscapers, and other customers who need aggregates, sand, and soil products. Come pick it up in your 5 cubic yard or larger truck, or have us deliver direct to your site.

We offer heavy equipment rentals, truck transportation, and specialty services to help complete your project.

Founder Dennis Kirwan was born in Fort Bragg, CA, and started his own tractor business at the age of thirteen. He earned his pilot’s license in high school and flew jets and helicopters as a corporate pilot for 15 years. After graduating with a Business degree from Sonoma State University in 1989, he and his wife, Beth, started Geo Dynamics in Santa Rosa, CA, specializing in vineyard and winery site planning, construction engineering and land development.