Quality Constriction in Sonoma County, CA
WELCOME TO CSN BUILDERS, INC.

CSN Builders, Inc. proudly serves the North Bay Area, delivering high-quality construction and remodeling throughout Sonoma, Napa, Marin, Solano, Mendocino, and El Dorado Counties. Whether you’re planning a kitchen or bathroom remodel, a full design-build project, an addition or ADU, or structural work like framing and foundations, our team stays organized, communicative, and detail-focused from start to finish. We work on both residential and commercial projects, helping clients turn ideas into clean, lasting results with a process that keeps timelines and expectations clear. If you’re looking for a licensed California general contractor you can trust for professional craftsmanship and dependable service, CSN Builders, Inc. is ready to help.
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Residential & Commercial Construction

CSN Builders, Inc. provides dependable repair solutions for homes and light commercial properties throughout the North Bay Area, handling everything from water-damaged drywall and ceiling patches to interior wall repairs tied to remodel work. When damage occurs, we remove compromised material, address underlying framing or moisture-related issues as needed, and restore surfaces with clean, paint-ready results—while protecting your home and keeping the job site organized. If you need a reliable general contractor for professional repairs that blend seamlessly with your existing finishes, CSN Builders, Inc. is ready to help.
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Build & Design

CSN Builders, Inc. offers a streamlined design-build process that keeps your project organized from the first concept to the final walkthrough. We help you plan layouts, materials, and scope up front, then coordinate the build so timelines, budgets, and expectations stay clear throughout the job. From kitchens and bathrooms to additions, ADUs, framing, and foundations, we deliver clean craftsmanship for both residential and commercial projects across the North Bay. When you’re ready to start, reach out for a free estimate and let’s build it right.
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Built Right. Planned Smart. Finished Clean.

From design-build to kitchens, bathrooms, remodels, additions, and ADUs, CSN Builders, Inc. delivers dependable craftsmanship for residential and commercial projects across the North Bay. Call (415) 599-6531
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