Licensed General Contractor · Contra Costa County
General Contractor in Walnut Creek, California
Walnut Creek homeowners and businesses expect quality — and that's exactly what Otto & Sons delivers. Whether you're renovating a home in the Saranap neighborhood or building out a commercial suite near downtown, we bring licensed craftsmanship and direct owner communication to every project.
CA Lic #1104751
General Building License
$1M
Liability Insurance
Top 2%
CA Contractors (BuildZoom)
5.0 ★
Yelp & Angi Rating
What We Do
Construction Services in Walnut Creek
From small service calls to full commercial builds, Otto & Sons brings the same level of care and direct communication to every Walnut Creek project.
Residential Remodels
Kitchen renovations, bathroom upgrades, room additions, and full home remodels built to last.
Get a QuoteCommercial Tenant Improvements
Retail storefronts, office renovations, and restaurant spaces — on time, on budget, code-compliant.
Get a QuoteCommercial Ground-Up Builds
New commercial construction from foundation to finish with full project management.
Get a QuoteConcrete Work
Foundations, driveways, patios, retaining walls, and decorative stamped concrete.
Get a QuoteService Calls
Repairs, inspections, and smaller jobs handled with the same professionalism we bring to every contract.
Get a QuoteWhy Walnut Creek Clients Choose Us
Direct Access to the Person Building Your Project
When you call Otto & Sons, you talk to Alani Tangitau — the owner, the licensed contractor, and the person who shows up to your Walnut Creek project. No layers of project managers. No subcontractors passing messages.
We hold CA General Building Contractor License #1104751, carry $1 million in liability insurance, and maintain full workers’ compensation on every job. Our BuildZoom score of 114 puts us in the top 2% of California contractors.
Licensed & Insured
CA Lic #1104751. $1M liability + workers' comp on every job.
5-Star Rated
5.0 on both Yelp and Angi with verified reviews.
Direct Communication
You speak with the owner — not a call center or sales rep.
On-Time Delivery
Realistic schedules set upfront and honored on every project.
Free Estimates
Start Your Walnut Creek Project
Call us or submit the online form — we typically respond within 24 hours. All estimates are free and no-obligation.