Welcome! California Builders™ 1980 DBA, is the name W. Isaak Construction Inc (WICI) brought back to honor Cofounder Joseph J Cerda and to welcome permanently Ralph Evans and Family Co-Operators.

(WICI) Now California Builders is working in accordance with CDC and Occupational Safety and Health Administration (OSHA) guidance, which includes any and all state or local requirements as and when applicable to provide you, our associates, and staff with the highest standard of service. We don’t take this responsibility lightly and we thank you for the opportunity to serve you.
— Ralph Evans Bill Isaak

We can customize your home or build a new one.

Hello, my name is Bill Isaak, my managing Associate is Ralph Evans. Together we are California Builders. We are fully licensed, Insured and bonded in California State. Our Contractors Lic # B753653. With our long time developed team of experts, we have all it takes both legally and diverse skills to cover and successfully build in all areas of work that we perform as professional contractors’ builders’ remodelers. We have well over 40 years of experience and work in Sonoma County and some surrounding areas. We invite you to call our references the few that were not introduced by a friend to ensure your confidence. We offer a complete team of industry veterans that are adept at making the construction process run smoothly - from start to finish. We strive to make the project planning phase as well as construction start to finish as effortless as possible and can help with design to fit your budget. Our goal is to bring your dream project to completion and have fun doing it.

 


We can do a variety of projects, remodels, additions or new construction.

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New Home Construction

Build your new home in Sonoma County with W. Isaak Construction, Inc. DBA California Builders. Ralph and Bill build high-quality new homes and work comfortably with even the most discriminating Customers that quite often end up as a friend! We are experienced with many budget levels and will adjust your design to fit your budget.


Custom Remodels

Custom remodels and home additions. We (Ralph and Bill) know your home is a reflection of you. Let us rebuild your home in a way that represents your tastes, carefully listening to ensuring you end up with chosen style. We are comfortable working alongside with your architect,. If you have not arrived at this point, please let us help you locate the type of designer to suit you and your special project. When we are involved early on you benefit from our experience as a discerning “partner”. We then are more effective at initial cost management and many times help streamline the design stage as we excitedly help in creating your vision.


Specialized Construction Services

  • Residential; Remodels of all sorts, Additions, Window and door upgrades, Decks, & Fences

  • Light commercial & winery buildings

  • Specialized crew in termite damage, moisture and rot repair  

  • Earthquake retrofit as part of an existing project.

  • Residential Design/build; We connect you with a licensed architect and help to take you from concept to execution

  • Barns;

  • Fire damaged homes'; Custom restoration matching existing, after the remediation is completed. We can advise you of reputable remediation/cleanup companies if necessary. Then rebuild soon after cleanup is performed and completed when permitted plans allow us to start. We offer to obtain construction permits and handle all the trades and building officials if you wish.

Client Testimonials

HGTV  “Curb Appeal: The Block” 

”With HGTV’s stringent schedules and tightly controlled budgets, I ask a lot of the professionals who work with me on “Curb Appeal: The Block”. Bill and his team managed to build one of our more ambitious projects on time, on budget, and most importantly, with positive attitudes and smiles on their faces - every day on the job.  Truly a pleasure to work with, I would recommend W. Isaak Construction, without hesitation, to anyone with an eye for quality and value. I  very much look forward to working with him again.”
— John Gidding, http://www.johngidding.com
You and your guys are really knocking this out. I have to say, I’ve worked with a lot of builders and remodelers over the years and the way Issak Construction communicates with their crew is so much more even tempered and respectful than others in the trade. It makes me feel good about everything we are doing here.
— Scott M. Barr, http://www.ca-mentor.com/careers
Pacific Property Development, Novato 

“Bill Isaak’s company has worked for me on four projects over the last 10 years. They have ranged from whole house remodeling, new home construction to townhouse subdivisions. I have been very happy with the results, that is why I have continued to use them. When problems arise (and they always do in construction) they have handled them quickly and cost effectively. I am a tough critic to please (I too am a General Contractor). I will continue to use Isaak Construction.”
— Doug Olsson
Lail Design Group, St. Helena

“Mr. Isaak was able to put together a very professional team of players to accomplish a very difficult project. I was very impressed with management, and would not hesitate to refer his company to any of my future clients.”
— Jon Lail, http://www.laildesign.com/