Serving Marin • Sonoma • Napa Counties

Call Us Today: (415) 870-5974

About Us

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About RJB Builders

RJB Builders is a trusted general contractor serving Marin, Sonoma, and Napa Counties with a focus on high-quality craftsmanship and reliable project management. From kitchen and bathroom remodels to additions, ADUs, and full home renovations, we bring decades of hands-on experience and a commitment to precision on every job. Our team handles all phases of construction — from framing and siding to concrete, trim work, and finish carpentry — ensuring every detail reflects the client’s vision and exceeds expectations.

We take pride in delivering residential and commercial projects on time, on budget, and built to last. Whether you’re improving a single room or undertaking a complete property transformation, RJB Builders provides the skill, communication, and professionalism you can count on. Contact us today to discuss your project and discover why homeowners and business owners across the North Bay trust RJB Builders for dependable results and exceptional service.
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Why Choose RJB Builders

At RJB Builders, we understand that choosing the right contractor is one of the most important decisions in any project. Our reputation is built on trust, craftsmanship, and a personal commitment to quality that shows in every phase of construction. From the first consultation to final inspection, we take the time to understand your goals, provide clear communication, and deliver superior results that stand the test of time.


We combine proven construction expertise with hands-on project management to make the process smooth, efficient, and stress-free. Every project — large or small — receives the same level of attention to detail and professionalism. Whether you’re renovating a home, expanding your space with an ADU, or upgrading your business, RJB Builders is dedicated to exceeding expectations and turning your vision into reality across Marin, Sonoma, and Napa Counties.

Ready to Transform Your Space?

Bring your dream to life with RJB Builders
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