
About Westward Builders
Providing Top-Notch Solutions & Seamless Client Experiences Since 2017
At Westward Builders, we are a family-run general engineering and construction firm based in San Rafael. Since opening our doors in 2017, we’ve combined our decades of hands-on experience, extensive resources and equipment, and no-nonsense approach to provide our clients with consistently outstanding results.
We believe that our work is about more than building structures. Our licensed and insured team strives to establish long-lasting relationships, treat people fairly, and solve challenges others might shy away from. These things have allowed us to earn the confidence of countless property owners across Marin and Sonoma counties.
Contact us online or call (415) 968-1090 to learn more about us and how we can bring an upcoming project to life. We start jobs with free, detailed estimates. Plus, we offer bilingual services in English and Spanish. Hablamos español.


The Westward Builders Difference
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Local & Trusted
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Trained & Experienced Team
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Materials Knowledge
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Transparent Communication
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“Christophe M.
Westward Builders just finished a wonderful construction for a new studio on a hillside. A big part of the job was excavating the hillside and building a huge retaining wall. We did not even dream that it could go so smoothly and be so aesthetically p
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“Fully satisfied with a major culvert collapse/repair. A very challenging project that required substantial excavation and driveway demolition. They offered a creative solution to minimize disruption. Reasonable cost and an outcome that exceeded my expectat”Peter J.
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“Excellent service and top-notch work. Westward Builders replaced the siding of my home and updated the drainage. Highly recommend!”Alex R.
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“Westward helped me with a new retaining wall. They were fast and efficient. Transparent about spending. The new wall looks amazing. Thanks to the whole team.”Ryan K.


- Marin County
- San Rafael
- Sonoma County
Credentials that Inspire Confidence
With a track record spanning more than five decades, our team offers unparalleled expertise across every facet of construction. Our knowledge of materials, from wood and concrete to soil and drainage systems, gives us the insight needed to solve tough challenges that other contractors won’t touch.
We’ve successfully completed projects ranging from foundation repair and structural shoring to retaining wall design, waterproofing, and custom remodeling. Our reputation as problem solvers extends to complex hillside and landslide prevention projects. No matter how technical or demanding the task, Westward Builders has the experience and dedication to deliver results that exceed expectations.
As part of the Marin H2O family of companies, Westward Builders collaborates with three other trusted brands to deliver complete residential and commercial solutions. Backed by the strength of Marin H2O, we deliver expert services that meet our clients’ wide-ranging needs.
From Concept to Completion, We Have You Covered
We are proud to handle every stage of a project in-house, including planning, permitting, engineering, design, and construction. Doing so ensures seamless coordination that keeps projects moving without surprise hurdles or unnecessary complications. Whether you’re starting fresh with new construction, needing to address an urgent property issue, envisioning a transformative remodel, or undertaking another project, count on us for top-quality workmanship with unmatched efficiency.