California Custom Builders
California Custom Builders
California Custom Builders provides general contracting for substantial residential and commercial projects in Ventura and throughout Ventura County. Its work spans custom homes, additions, ADUs, whole-home remodels and commercial construction, with preconstruction and design coordination before the build begins.
Last Updated October 4, 2026.
Business Highlights
- The company lists California License 929421 and identifies itself as licensed, bonded and insured.
Service Area
Ventura County, Ventura, Oxnard, Camarillo, Ojai, Santa Paula, Thousand Oaks, Simi Valley, Santa Barbara, Goleta, Carpinteria, Malibu, Westlake Village, Agoura Hills and West Los Angeles.
Local Business Taking Calls
California Custom Builders is one of 5 home builders ProsGrade lists in Ventura, California.
5 services listed, including Custom homes, Home additions and Accessory dwelling units. Open weekdays, closed on weekends. Rated 5.0 from 8 reviews.
- Verified listing details
- Service information
- Customer review signals
- Photo gallery
- Public contact information
- Published local profile
How This Business Compares
How California Custom Builders compares with the other 4 home builders on ProsGrade in Ventura, using public Google ratings and review counts.
- Rated 5.0 on Google, at or above the 4.7 average of other Ventura home builders on ProsGrade.
Services Covered
5 services- Custom homesGround-up residences planned from feasibility and preconstruction through delivery, with coordination among owners, architects, engineers and trades.
- Home additionsMajor additions can include primary suites, kitchen and living-area expansions, and second-story work. The team coordinates structural work, utilities and finishes with the existing home.
- Accessory dwelling unitsAttached and detached ADUs, garage conversions and interior conversions, managed from site feasibility through construction.
- Whole-home remodelingMajor renovations can bring structural reconfiguration, building systems, kitchens, bathrooms and interior finishes together under one construction plan.
- Commercial constructionCommercial renovations, tenant improvements and multi-trade construction, including accessibility upgrades, restroom modernization and phased work at occupied sites.
Reviews
What customers say
Customers praise Juan’s professionalism, with one review also noting communication and coordination across trades and inspectors. A housing authority maintenance specialist reports a 300-door installation across 150 apartments, with no issues nearly a year later.
Customer Reviews
Barbara Macri-Ortiz
Skylar Star (symfany)
Fantastic job on rebuilding my home after the Thomas Fire, couldn't be more grateful.
Alex Gallegos
Professional, respectful, on schedule, organized, cleanup after. Good communication and coordination with all trades and inspectors. Very nice work.
Kevin Steller
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Frequently Asked Questions
What does preconstruction planning cover?
The team reviews site and project constraints, develops cost information and coordinates with the design team before construction begins.
How does the team plan a major home addition?
It reviews structural, utility, access and occupancy constraints, connects design decisions to budget expectations and coordinates new work with the existing home.
How are commercial projects planned around a property's operations?
The team coordinates scope, access, phasing, protection and schedule around the property's needs.








