About SUMI Builders

— About

SUMI Builders is a full-service general contractor serving homeowners throughout the Bay Area. We handle projects from early planning through final completion — including custom home builds, whole-home renovations, additions, and interior remodels.

With a focus on honest communication, organized project management, and high-quality workmanship, we make the construction process more clear, efficient, and dependable.

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— Our Team

Built by people who care.

Our founding team possesses deep industry expertise in construction management. CEO Zhuoyuan Li, a Purdue University graduate in Construction Management and Data Analytics, has over 7 years of experience managing construction projects, focusing on day-to-day jobsite management and improving work efficiency. Co-founder Zelong Li has been deeply rooted in the industry for over 10 years, offering extensive experience in on-site construction management and delivering projects from start to finish. Leveraging our solid technical expertise, the team is dedicated to providing clients with efficient, high-quality construction services.

Together, our team has completed 65+ projects across the Bay Area, working closely with trusted designers, architects, engineers, and subcontractors. We believe that successful construction is not based on guesswork, but on a reliable system: clear planning, accurate communication, disciplined execution, and strong quality control.

At SUMI Construction, we combine practical field experience with modern technology and data-driven thinking to improve how each project is managed and built. From design coordination to construction delivery, our goal is to minimize mistakes, control details, and bring every project as close as possible to the original design vision.

Our mission is simple: to take every project seriously, build with integrity, and deliver work our clients can trust.

Our Process

What to expect

  • We meet to understand your goals, site, and budget — and walk through how we work, what's possible, and the next steps.

  • Together with your architect (or ours), we develop scope, drawings, finishes, and a clear path to permit.

  • A line-item proposal and contract aligned with your scope, schedule, and budget — clear pricing, no surprises.

  • Organized site management, weekly progress updates, and a single point of accountability throughout the build.

  • A detailed punch list, final cleanup, and warranty documentation before keys change hands.