Our Company

Crown Hill Stone Supply’s mission is to provide top quality Natural Stone, Architectural Concrete Products, and Landscape Supplies at the best possible prices.


Our family business started in Vallejo, Ca. in the early 1990’s when a local Napa entrepreneur purchased the business that had it’s roots from the 70’s. The original Landscape supply store and plant nursery operated under the name “Broadway Nursery”. At the time owner Zora Singh Sidhu purchased the business, it had been closed for a number of years and he had to start from scratch. Mr. Sidhu had a real keen business sense, which combined with hard work, honesty, integrity, quality products at fair prices, he was able to make the business successful again.

Mr. Sidhu was later joined by his son Raj as GM in the early 2000’s who is a graduate of Napa Valley College and St. Mary’s college. He holds a BA in Business administration and finance. The company was rebranded under the Crown Hill name with many new changes that followed. A new state of the art trailer haul concrete plant was added to help the small contractor and homeowner do small projects. Later a larger transit truck concrete plant was added to serve the growing needs of the concrete contractor. Many new product lines were added as well to serve the customers better.

In late 2009, Mr. Sidhu passed away and the company was left in the hands of his son, it was a devastating time. But Raj continued to grow the company and finally sold his interest in the company in late 2013. Being a native of Napa and a passion for the building materials industry, Raj along with his wife Sara opened a new company in Napa under the name Crown Hill Stone Supply.

In 2015 Crown Hill Stone Supply began the construction of a show room in St. Helena, CA., complete with over 20,000 square feet of display areas to inspire the landscape designer in anyone. There is also a full retail store with the show room to make it easier for customers further north of the Napa location to pick up materials.

While the Showroom was under construction, a local landscape supply company that has served the Napa Valley since the 1930’s was looking for a buyer as the current owners wanted to retire. A deal was struck and in June of 2015 Clark’s Rock in American Canyon was acquired by Crown Hill Stone Supply. The addition of this great location has vastly increased the products and volumes that Crown Hill Stone Supply can provide for its customers. From this location we are able to create our own soil blends and custom soils for local landscapers as well as for vineyards. We are also able to stock more natural stone and concrete products that were not possible at our Napa or St. Helena locations.


Crown Hill Stone Supply understands that we are part of the local community and only exist because of our local loyal customers. Crown Hill Stone Supply has always donated to local causes including local businesses, schools, churches, local gardens and events. If you are planning a local event that benefits our community we would love to help out please contact us with details.

Clean And Green Fleet

In doing our part to help the environment and air quality, Crown Hill Stone Supply’s entire fleet of trucks are California CARB compliant and use the latest technologies to control pollution. These trucks use advanced exhaust burning technologies called SCR to reduce emissions and pollutants. Crown Hill Stone Supply is also in the process of changing its yard equipment to low emissions diesel and electic units. . We also have a recycling program in place at all three of our locations to minimize trash to the landfills. We believe that all of these steps will help lead to a healthier community while reducing our carbon footprint.

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