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About KC Custom Builders

More Than a Contractor.
A Partner in the Process.

Nathan Casey: Founder & Lead Builder

Meet Nathan Casey

KC Custom Builders was founded in 2006 to deliver a higher standard of building in the East Bay. What began as a small carpentry business has grown into a respected residential construction firm specializing in large-scale remodels, custom new homes, additions, and ADUs. The company’s work is defined by precision, clarity, and a commitment to lasting quality.

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Who We Are

A Foundation in Craftsmanship

Founder Nathan built his career as a finish carpenter, learning early on that the best results come from a disciplined process and an unwavering attention to detail. Those principles continue to shape every project. KC Custom Builders is not structured for high-volume, standardized work. Each build is tailored, thoughtful, and executed to meet elevated expectations.

Built on Continuous Improvement

Nathan’s approach is driven by curiosity and a deep respect for the craft. He’s committed to advancing building science, exploring smarter construction methods, and integrating efficient solutions. That focus on technical excellence ensures every home is built to perform as beautifully as it looks.

A Boutique Builder

KC Custom Builders is intentionally kept small to maintain direct involvement and high-quality execution on every project. Clients work with a team that values clear communication, organized processes, and reliable follow-through. The result is a building experience that’s straightforward, well-managed, and highly refined.

Meet the team

A Team That Delivers

Behind every project is a trusted team of skilled professionals who take pride in their work. The company’s culture emphasizes professionalism, respect, and accountability — qualities that are reflected in both the process and the finished product.

Indira Marley | Office Manager

Indira manages client communications, schedules, and project logistics, keeping every detail organized and transparent. She coordinates subcontractors, designers, and permitting while ensuring estimates, billing, and operations run smoothly. Her efficiency, reliability, and expertise ensure projects progress seamlessly from start to finish.

Jesse Baker | Project Manager
Jesse brings extensive construction experience, starting as a finish carpenter and progressing to project management. He combines detailed trade knowledge with strong organizational skills to oversee timelines, budgets, and project execution. Clients and the team rely on him for clear communication, precise craftsmanship, and keeping projects on track.
Jesus Sandoval | Project Manager
Jesus specializes in technical building details and high-end construction, from framing and waterproofing to managing additions and ADUs. He is detail-oriented, budget-conscious, and forward-thinking, ensuring projects are built efficiently and to the highest standard. His calm, methodical approach keeps both teams and projects coordinated and on schedule.
Partners We Work With

At KC Custom Builders, we believe exceptional homes are created through exceptional partnerships. That’s why we collaborate with a select group of interior designers who share our passion for craftsmanship, creativity, and client-centered design. Together, we transform vision into reality—bringing beautifully crafted, highly personalized spaces to life.

We offer home remodeling and new home construction services in the following areas:

Ready to Get Started?

Have a project in mind? Whether you’re still gathering ideas or ready to start planning, we’re here to help. Let’s talk about what’s possible.

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