• CSLB License # 1141734
  • CSLB License # 1141734
Structural Safety Starts Here

Soft-Story Retrofits, Balcony Repairs & Custom ADUs—Done Right

CalPrime is your trusted construction partner for code-compliant retrofitting, safe and durable balcony restorations, and fully permitted ADU builds. We bring engineering precision, seamless project management, and expert craftsmanship to every job—big or small.

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Structural Expertise

From seismic retrofits to ADUs, our licensed team combines engineering knowledge with hands-on construction experience for safe, code-compliant builds.

End-to-End Service

We manage everything from inspections and permits to final finishes—streamlining the entire process with clear communication and no surprises.

Trusted & Local

Proudly serving the Greater Los Angeles area with a reputation built on quality, integrity, and long-lasting results.

About Us

Built on Integrity. Driven by Precision. Focused on You

“We don’t just meet code—we build with purpose, precision, and pride.”
At CalPrime, we’re more than contractors—we’re structural problem solvers. With deep roots in the construction industry and a passion for safe, code-compliant design, we specialize in Soft-Story Retrofits, Balcony Repairs, and ADU Construction across Los Angeles. From initial inspection to final sign-off, we’re committed to quality craftsmanship, clear communication, and lasting results. Our licensed, bonded, and insured team takes pride in doing the job right the first time—because your property deserves nothing less.

CSLB License # 1141734

We are fully licensed and committed to delivering quality work you can trust. CalPrime Construction proudly holds CSLB License #1141734, ensuring every project meets California’s strict standards for safety, craftsmanship, and professionalism.

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CalPrime Services

Expert Construction Services That Strengthen, Improve, and Expand Your Property

At CalPrime, we specialize in structural safety and smart property improvements. Whether you’re protecting your building with a seismic retrofit, repairing a compromised balcony, or expanding your space with a custom-built ADU, we deliver expert craftsmanship backed by experience and engineering insight.

Soft-Story Retrofit​

In earthquake-prone regions like Southern California, soft-story buildings

Balcony Reconstruction

Balconies add beauty and value to any property—but when poorly maintained

ADU Construction

Accessory Dwelling Units (ADUs) are one of the smartest ways to expand

General Contracting

Balconies add beauty and value to any property—but when poorly maintained

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CALPRIME Team

We have talented and creative engineers

Jackson Williams

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Omar Smith

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Lucia Lam

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Why Families Trust Us

Proven Excellence in Every Project

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Our Clients

Trusted By Over 500 Homeowners & Companies

Homeowners, property managers, and developers across Los Angeles trust CalPrime for reliable, code-compliant construction. With over 500 successful projects, our reputation is built on quality, safety, and lasting results. CSLB License #1141734

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Our Mission

To strengthen and protect the homes and buildings of Southern California through expert engineering, high-quality construction, and service. We’re committed to delivering smart, safe, and lasting solutions

Our vision

To become the go-to structural construction partner for homeowners and developers across California, known for our precision, integrity, and ability to turn complex challenges into confident solutions.