Family Owned • Simi Valley
Building Simi Valley Since 1986
Simi Pacific Building Materials is a family-owned landscape and masonry supply yard serving contractors and homeowners throughout Simi Valley and the surrounding communities.

More Than a Building Materials Yard
A local yard, built one project at a time
For decades, Simi Pacific has helped contractors, landscapers, masons and homeowners find the materials they need to build everything from backyard projects to complete masonry and hardscape installations.
What started with a few extra block and brick set out at the front of a leased Chatsworth yard has grown into a local destination for masonry, landscape and outdoor-living materials.
Our Story
How Simi Pacific Started
The history below is drawn from Joe Cassella’s own account of how the business began.
- July 1981
The Beginning
Joe Cassella was working in masonry and concrete construction for his father, who held a lease on Canoga Avenue just south of Devonshire. The recession hit the construction industry hard, so Joe asked whether they could put some extra block and brick out on the front lot to sell. His father said yes — and that was the start of Pacific Building Materials.
- 1984
The Trailer Years
The lease was ending: the property owner wanted to put up a building. Joe knew the neighbor had a vacant lot with no office on it, so he bought a 40-foot trailer to serve as one and moved the whole business next door over a single weekend. “It was pretty funny seeing the contractors face Monday morning scratching their heads trying to figure out what had happened.” Two years later, the same notice arrived again.
- Late 1985
A Yard in Simi Valley
A salesman mentioned a yard for sale in Simi Valley — Simi Builders Supply. Its owners, Bob and Mary Walters, were looking to retire. After several conversations Joe reached an agreement, and in the last week of December the business began moving from Chatsworth to Simi Valley.
- January 10, 1986
Simi Pacific Is Born
The official first day of business in Simi Valley. With customers who knew Pacific Building Materials and customers who knew Simi Builders Supply — and no wish to alienate either — Joe combined the two names into Simi Pacific Building Materials.
- 1993
The Next Generation
Joe’s son Anthony joined the business as a yardman. He learned to drive the trucks, deliver materials, work counter sales and dispatch the delivery loads. He is now the Manager.
- 2006
Another Son Joins
Joe’s son Vince joined Simi Pacific, learning the yard, counter sales and the daily inventory.
- Today
Still Family Owned
Simi Pacific is still a family-run local building-materials business, serving contractors and homeowners across Simi Valley and the surrounding communities.
I am a proud Father to have them working with me on a daily basis. We take pride in what we do.
Joe with his sons, Anthony and Vince.
A Family Business
Three generations of experience
The experience behind the counter goes back three generations. Joe learned the trade working for his father, a masonry and concrete contractor, and today he runs Simi Pacific alongside his sons — Anthony, who joined in 1993 and manages the business, and Vince, who joined in 2006.
We know many of our contractors by name, and we are equally comfortable helping a homeowner figure out what they need for their first backyard project.
Simi Pacific Today
What we do now



Why Simi Pacific
What you get when you come to us
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Family Owned
Serving the community from our Simi Valley yard for decades.
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See Materials in Person
Visit the yard to compare colors, textures and products before you buy.
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Help From Real People
Talk with a team that works with these materials every day.
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Contractors + Homeowners
Professional material supply, without making homeowners feel out of place.
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Delivery Available
Bulk and palletized materials delivered to the jobsite.
Proud to Support Our Community
Giving back to Simi Valley
Simi Pacific is a proud supporter of:
- Boys & Girls Club of Simi Valley
- Simi Valley Police Department
Come Visit Simi Pacific
The best way to see what we offer is to visit the yard
Walk through the materials, compare colors and textures, and talk with our team about your project.
- Visit Us
- 609 East Los Angeles Avenue
Simi Valley, CA 93065 - Hours
- Mon–Fri 6:30 AM–5:00 PM
Saturday 7:00 AM–3:30 PM
Sunday Closed - Call Us
- (805) 526-0381
