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Business ProfileHome Builders in Ventura, California

California Custom Builders

Taking Calls in Ventura Today 5.00 (8 reviews)(805) 667-7102

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.

Taking Calls
Taking calls through ProsGrade
Listing details

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

Gina Parcon

California Custom Builders was excellent. My project went smoothly and came out fantastic! Juan, is extremely protessional, conscientious, and hard working. He is extremely thorough and knowledgeable, and stuck to his timeline as much as he could controlled. Everything was transparent. Pay schedule was detailed and forthcoming, and he worked well with all of his subcontractors. I never had to worry because I knew Juan was meticulously overseeing the project on a daily basis. Juan listened and was responsive to every concern. He found reasonable solutions and the lines of communication were always open. For any home owner looking to complete a project of any size, California Custom Builders is the right choice. Prices are fair and you will be able to sleep easy knowing that everything is taken care of. Would absolutely recommend and will use again!
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Barbara Macri-Ortiz

I was very satisfied with the work. The two projects he did for me came in on time and on budget Juan is a solid professional. He understands the ins and outs of the construction business, and he uses his knowledge and experience to help his customers meet their expectations. He listens and is innovative to solve issues, but he is also realistic and doesn't make unrealistic promises just to get hired. Juan's first project was a 900 Sq. foot addition to my daughter's SF dwelling, for a master bedroom & bath, with an enlargement of the kitchen and family room. The kitchen island was a stunning feature. His second project for me was a kitchen remodel and electrical upgrades in my home. I would recommending him whole-heartedly for any project. He is very talented and reliable.
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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

The owner, Juan Lopez, was exceptional at his craft. I work as a maintenance specialist for the Housing Authority of Santa Barbara County and hired him to install screen doors across 150 apartments. He completed the project in record time, installing a total of 300 doors—both front and back. Along the way, I learned several valuable techniques from him, and I now feel confident handling these installations myself. Juan is professional, personable, and takes great pride in his work. The job was done correctly, and nearly a year later, there have been no issues with any of the 300 doors. We will definitely keep his contact information handy for future projects.
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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.