Construction activity in Fullerton reflects the city's evolving identity. Mixed-use developments are rising near the Fullerton Transportation Center, aging homes are being remodeled with modern kitchens and accessory dwelling units, and commercial properties are being upgraded for new tenants. Every one of these projects starts with the right building materials, delivered on time and at a fair price.
For contractors, a dependable supplier can be the difference between a project that finishes on schedule and one plagued by delays. For homeowners, the right supplier offers expert advice and quality products that last. Below are ten building material companies that serve Fullerton with strong inventories, knowledgeable staff, and reliable delivery.
Fullerton's Construction and Renovation Market
Fullerton has one of the most diverse housing stocks in Orange County, from 1920s Craftsman homes in historic districts to post-war ranch houses and newer hillside estates. Renovation work is constant, and California's push for more housing has made accessory dwelling units one of the fastest-growing project types in the city.
Builders must also meet California's Title 24 energy standards and strict seismic codes. This makes access to engineered lumber, structural connectors, energy-efficient windows, and code-compliant insulation essential for any project in the area.
How We Selected These Companies
We evaluated suppliers based on product selection, contractor services, delivery capabilities, pricing transparency, staff expertise, and presence in North Orange County and the surrounding region.
The Top 10 Building Material Companies Serving Fullerton
1. Ganahl Lumber
Ganahl Lumber is a family-owned Orange County institution with more than a century of history in Southern California. Its yards offer lumber, hardware, doors, windows, and building supplies, backed by staff who understand local codes. Contractors value Ganahl for its knowledgeable service, dependable delivery, and strong community reputation.
2. The Home Depot Pro
The Home Depot operates multiple stores near Fullerton and offers a dedicated Pro program for contractors. Benefits include volume pricing, job site delivery, tool rental, and online ordering. Its massive inventory makes it a convenient one-stop source for both professional builders and do-it-yourself homeowners.
3. Lowe's Pro
Lowe's provides a broad selection of building materials, appliances, and fixtures, with Pro services that include dedicated account managers and bulk ordering. Fullerton remodelers appreciate its extensive kitchen and bath selections and convenient store locations throughout North Orange County.
4. Builders FirstSource
Builders FirstSource is the largest supplier of structural building products in the United States. It provides framing lumber, roof and floor trusses, wall panels, and millwork, helping builders in Southern California speed up construction with prefabricated components and accurate material takeoffs.
5. ABC Supply
ABC Supply is one of the largest wholesale distributors of roofing, siding, and windows. Roofing contractors in Fullerton rely on its regional branches for shingles, tile underlayment, and accessories, along with rooftop delivery that saves crews significant time and labor.
6. CEMEX
CEMEX is a global building materials company supplying ready-mix concrete, aggregates, and cement. Its Southern California operations support foundations, driveways, and commercial projects, with technical teams that help contractors choose the right mix for strength, workability, and sustainability.
7. Vulcan Materials
Vulcan Materials is the nation's largest producer of construction aggregates such as crushed stone, sand, and gravel. Its regional quarries and asphalt plants supply road projects, commercial developments, and residential construction across Orange and Los Angeles counties.
8. Owens Corning
Owens Corning manufactures roofing, insulation, and composites. Its insulation products help Fullerton builders meet Title 24 energy requirements, while its roofing shingles are known for durability and wide color options suited to Southern California architecture.
9. James Hardie
James Hardie produces fiber cement siding and trim that resist fire, pests, and moisture. In a region where wildfire resilience matters, its products are popular for both new construction and exterior renovations in Fullerton's hillside neighborhoods.
10. Simpson Strong-Tie
Headquartered in California, Simpson Strong-Tie is a leader in structural connectors, anchors, and lateral systems. Its products are essential for meeting seismic codes, and its engineering resources help builders design safer structures throughout earthquake-prone Southern California.
Trends in Building Materials
Sustainable and energy-efficient materials are in high demand, including low-carbon concrete, high-performance windows, and solar-ready roofing. Fire-resistant products are increasingly popular due to wildfire concerns. Prefabrication is also accelerating, with trusses, wall panels, and modular components reducing labor needs on job sites. Digital ordering and real-time delivery tracking are now expected by contractors.
How to Choose a Building Material Supplier
Consider product availability, delivery reliability, and staff expertise. Contractors should look for trade accounts with volume pricing and flexible payment terms. Homeowners benefit from suppliers who provide design advice and installation referrals. Always verify that materials meet current California building and energy codes before purchasing.
Building an Accessory Dwelling Unit in Fullerton
Accessory dwelling units have become one of the most popular construction projects in Fullerton, giving homeowners rental income or space for extended family. These projects require careful material planning, from foundation concrete and framing lumber to roofing, insulation, windows, and finishes. Coordinating with a supplier that offers material takeoffs and staged deliveries keeps job sites organized and reduces waste. Because ADUs must meet the same energy and seismic requirements as primary homes, choosing compliant materials from the start helps projects pass inspections smoothly.
Final Thoughts
Fullerton's construction market blends historic preservation, housing growth, and commercial renewal. The companies above provide the materials and expertise needed to build safely and efficiently in Southern California. Confirm current inventory, pricing, and delivery options directly, and choose suppliers who will support your project from foundation to finish.