Design-Build Constructionin Northern California
Design-build means one contract and one responsible party from concept through keys. No architect blaming the contractor, no contractor blaming the drawings — one team that designed what it's building and priced what it designed.
Licensed & Insured · CSLB #1130548 · 5.0★ on Google, Yelp, Thumbtack & Angi

The Work
Done Right, Documented, and Inspected
For commercial TIs, ADUs, and custom homes alike, design-build is consistently faster and ends closer to the original budget, because cost feedback happens during design instead of after bids come back high.
Every project runs under Sarmento Bros. Construction Inc. — CSLB #1130548, fully insured with general liability and workers' compensation. Based in Manteca, we serve businesses and property owners across the Central Valley, East Bay, and greater Northern California.
What We Handle
- ✓ Concept design and space planning
- ✓ Budget-checked design development
- ✓ Engineering and permit drawings
- ✓ Fixed pricing before construction
- ✓ Construction under the same contract
- ✓ One point of contact start to finish
Service Spotlight
A Closer Look at This Service

How It Works
A Straightforward Process
01
Walk & Scope
We meet at your space, listen to what you need, and scope the job honestly — including the parts other bids leave out.
02
Fixed Estimate
A written, itemized estimate with a real schedule. Free, and good numbers — not a teaser that grows later.
03
Permits & Build
We handle drawings, permits, and inspections, then build with our own crews and trusted trade partners.
04
Walkthrough & Closeout
Final walkthrough together, punch list closed, documents handed over. Done means done.
Common Questions
Design-Build Construction FAQs
Why choose design-build over hiring an architect separately?+
Speed and budget honesty. Traditional design-bid-build prices the project after design is done — too late. We price as we design, so the plan you fall in love with is one you can afford to build.
Do we lose design quality going design-build?+
No — you lose the finger-pointing. We use licensed designers and engineers; the difference is they sit on the same team as the builder from day one.
What projects fit design-build best?+
TIs, ADUs, restaurants, custom homes, and any project where schedule matters — which is most of them.
