California Builders™ is a subsidiary of W. Isaak Construction Inc (WICI)

“We share your concern over the rapidly evolving COVID-19 situation and are staying up-to-date on the latest information available. WICI is working in accordance with CDC and Occupational Safety and Health Administration (OSHA) guidance, which includes any and all state or local requirements 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. ”
— Bill Isaak

We can customize your home or build a new one.

Hello, my name is  Bill Isaak and I’m a licensed, bonded, and professional contractor with over 30 years of experience in Sonoma County and the surrounding areas. 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 effortless as possible and can help design it to fit your budget. My goal is to bring your dream project to completion.

 

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

New Home Construction

Build your new home in Sonoma County with W. Isaak Construction, Inc. We build high-quality new homes and can adjust your design to fit your budget.

Custom Remodels

Custom remodels and home additions. We know your home is a reflection of you. Let us rebuild your home in a way that represents your tastes, reflects your style and fits your personality.

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

  • Residential Design/build; We take you from concept to execution

  • Lifting homes; New foundations, second stories under lifted homes

  • Barns; We lift and remodel barns and outbuildings, converting to livings space

  • Fire damaged home restoration

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/

Your new project can start now —>