
DESIGN + BUILD
Since 1977
Service: Room Additions
We Visualize & Design
Room Additions
Experience the value of our rapid concept & 3D Design. Know your projects total costs + see your project. Before $pending money.
We Build
Room Additions
Cost effective, inhouse craftmanship from concept to completion. No delays, No job hopping and No excuses. We also quote plans you have.
We Guarantee
Your Room Addition
Since 1977 our family has built projects with our own hands. We Guarantee all work done on your home for decades to come. Plain & Simple.
About Us
Since 1977
We’re an family owned & operated general contracting company, and have been remodeling Orange County, California since 1977. We specialize in design & build room additions, and also build room additions drafted by others. We offer affordable, inhouse craftsmanship from concept to completion with 40 years of happy customers to show for it.
Decades of experience, and the proven value of our rapid 3D design & building information models set us apart from our competitors. You will know your projects total build cost, and see how your project could look & feel before $pending a dollar and getting $tuck with $tatic plans that you don’t want to build. Our written, detailed quotes are free. Start Your Free Quote Today.
Design + Build
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Testimonials

So professional. They clean the job site everyday. They were accommodating to our needs. Had great communication all along the way. I would hire them again without a doubt
Kelli M. San Clemente, CA

This company is the best I have ever worked with. Wish I used them to build my home. Great service, On Time! and did work that wasn't in the scope of the project. Unreal! Thank you Jonathan
Derek M. San Clemente, CA

John Jacobs Construction kept their word throughout the project. Their craftsmanship and attention to detail was second to none. John Jr. was the first on the job and last to leave every day. They made extraordinary efforts to minimize dust and cleaned the job site daily before days end. My wife and I are thrilled with the results and highly recommend this company.
John F. San Clemente, CA

Where can I start....far and above the best contractor I have ever used. John and his father were nothing but professional and honest throughout the entire process. All of Johns work was of the highest quality, John completely satisfied my difficult tastes, and did it all with a smile. John was always respectful of my home, and my family's space. His daily work was cleaned up after each day, to the point that we could live in the home while the work was going on. I would highly recommend John Jacobs Construction, please feel free to contact me for a referral.
Michael G. San Clemente, CA