Northern California's Premier Supplier of Lightweight Aggregate & Concrete
For more than 50 years, Clearlake Lava has supplied contractors, municipalities, landscape yards, and other valued customers with quality aggregate and concrete products. We have worked with clients to identify and supply the product(s) which meets the specifications of their most demanding projects
Concrete
Redi-Mix Concrete Solutions
For Every Application
Our 3 Redi-Mix plants can produce and deliver concrete anywhere in our service area with our diverse fleet, capable of completing the most challenging of jobs. We are well versed in tailgating, line and boom pumps, curb machines, and much more.
Aggregate
Aggregate Lava Stone in a Wide
Range of Colors, Sizes and Mixes
Clearlake Lava mines aggregate out of three quarries in Lake County, California. Our aggregate products are carefully sorted to meet any job specifications including landscaping, drainage, filtration media, lightweight fill, geotechnical engineering, and C330 lightweight concrete projects.
About Clearlake Lava
Serving Northern California for
More Than 50 Years
Clearlake Lava was founded in the 1960s as Lake County’s premier decorative rock supplier. We now not only provide decorative, but structural lightweight aggregate as well. We also supply Redi-mix products with our three state certified batch plants located in Lower lake, Middletown, and Williams.

Today we proudly serve an
ever-expanding clientele of contractors, municipalities, landscape yards, and homeowners
Our dedication to delivering superior products—as well as our team and in-house laboratory technician—has given us the opportunity to partner in some of California’s most notable construction and development projects.