Built for owners, architects, and builders.
4C manages a coordinated, end-to-end process from design through installation, helping owners, designers, and builders reduce complexity, improve certainty, and deliver better projects.
One process, three sets of benefits.
Owners + Developers
Earlier cost certainty, faster dry-in, lower carrying costs, and one accountable partner through installation.
Architects + Designers
Design flexibility, proven details, direct access to our design team, higher performance, and lower embodied and operational carbon.
Builders + GCs
Fewer trades and suppliers, one coordinated scope with a system-wide warranty, greater certainty for following trades, and a faster path to dry-in.
Plus a network of material & product partners.
Alongside owners, architects, and builders, we work with material and product vendors whose offerings integrate into our component systems.
Material & Product Vendors
Integrate your product line into our component systems, alongside partners like ROCKWOOL and DuPont ArmorWall.
De-risked delivery for developers
Reduce construction timelines on infill, ADU, and multifamily projects with a documented, repeatable process and a lower embodied-carbon footprint. See our sustainability data.
Technical training & support
Our engineering team trains your crew on both component systems and stays involved throughout the process, from configuration to installation.
From application to your first project.
Read more about our mission and the four pillars behind every partnership on our About Us page.
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Apply
Tell us about your firm, license, and the kind of projects you typically run.
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Review & onboarding
We confirm licensing and project fit, then walk you through our end-to-end process and how it integrates into your workflow.
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First project support
Our team supports your first project end-to-end, from configuration to delivery scheduling.
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Ongoing relationship
Run future projects through our process with priority scheduling and direct engineering support.
Trusted by architecture, engineering, and materials partners.
We already serve owners, architects, and builders across most of California, including active work in the fire-rebuild communities of Altadena and Pacific Palisades. See the full list of California locations we serve.












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