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Sarmento Bros. Construction Inc. logo — Commercial Construction, Tenant Improvements, ADU, Design-Build

Commercial General Contractor in San Mateo, CA

San Mateo's downtown around B Street, its medical offices near the hospitals, and its mid-Peninsula office space generate steady build-out demand. We deliver tenant improvements and commercial remodels across San Mateo County.

CSLB #1130548 · Licensed, Bonded & Insured · Serving San Mateo from Manteca, CA

A Local Contractor, Actually Local

Why San Mateo Businesses and Homeowners Call Us

We're a family-owned general contractor headquartered in Manteca — close enough to San Mateo that our crews are on your site without travel-day pricing, and local enough that our reputation in San Mateo County is worth more to us than any single job.

Every San Mateo project runs under CSLB #1130548 with full general liability and workers' comp coverage, permits pulled with the city, and a written schedule you can hold us to. That's the arrangement on every job, at every size.

  • Free on-site estimates in San Mateo
  • Permits handled with the city
  • 5.0★ rated across four platforms
  • 24/7 commercial emergency response
Sarmento Bros. Construction — 5.0 star rated contractor serving San Mateo, CA on Google, Yelp, Thumbtack, and Angi

Planning a project in San Mateo?

Tell us what you're working on. We'll walk the space, talk through options honestly, and give you a real number — free.

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Common Questions

Working With Us in San Mateo

Do you charge extra to work in San Mateo?+

No. San Mateo is inside our standard service area — we're based in Manteca and run projects throughout San Mateo County, so there are no travel charges or minimums specific to San Mateo.

Do you handle permits with the City of San Mateo?+

Yes. We prepare drawings, submit to the San Mateo building department, respond to plan-check corrections, and schedule inspections. Permit handling is included in how we run every job, not an add-on.

What kinds of projects do you take on in San Mateo?+

Commercial tenant improvements, office and retail build-outs, restaurant construction, and commercial remodels — plus ADUs, kitchen and bathroom remodeling, and custom homes. If you're not sure your project fits, call 209-637-7379 and ask; the conversation is free.