01Residential
Kitchen Remodeling
Custom layouts, cabinetry, and finishes built around the way you cook, gather, and live.
Learn more- {{ years }}+ Years In the trade
- Licensed & Insured State of California
- Residential & Commercial One team, every scale
- Bay Area San Mateo · Foster City · San Jose
- Guaranteed Work Every job, backed
- CA License #1160455 Verify on CSLB.ca.gov ↗
{{ years }}+
Years of Experience
Two decades building the Bay Area — and standing behind every job.
More than 20 years of hands-on experience means fewer surprises, smarter decisions and work that holds up. It’s why homeowners and businesses from San Mateo to San Jose trust us with their most important projects.
Licensed CA #1160455
Guaranteed Work
01The Firm
For more than two decades, Marcos J & I Construction has built and remodeled homes and commercial spaces across the Bay Area — with one standard on every job: do it right, and stand behind it.
We’re a licensed general contractor based in San Mateo. From the first walkthrough to the final punch list, you work with a team that communicates clearly, respects your property, and treats your budget like its own.
About the company{{ years }}+
Years of experience
Projects completed
Satisfied clients
02Services
Residential & commercial, under one roof.
Whether it’s the kitchen you’ve planned for years or a tenant build-out on a deadline, we manage every trade, every schedule, and every detail — so you deal with one accountable team.
All services
02Residential
Bathroom Remodeling
Precise tile work, smart storage, and lasting materials — bathrooms that feel like a retreat.
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03Residential
Home Additions
More room without moving. Additions designed and built to match your home seamlessly.
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04Residential
New Construction
Ground-up homes built to code, on schedule, and to a finish you’ll be proud of for decades.
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05Commercial
Tenant Improvements
Efficient build-outs that get your space open, compliant, and operating on time.
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06Commercial
Commercial Construction
Retail and office remodels and new commercial builds, delivered with clear scheduling and coordination.
Learn moreIn-house trades
- Framing
- Concrete
- Electrical
- Plumbing
- Drywall
04Before & After
The difference is in the details.
Drag the slider to compare a recent project — from the original space to the finished result.
Interior Remodel
Millbrae, CA
View project
05How We Work
A clear process, from first call to final walkthrough.
No surprises, no guesswork. At every stage you’ll know what’s happening, what it costs, and what comes next.
Step 01
Consultation & Free Estimate
We visit your property, listen to your goals, and provide a clear, detailed estimate — free, with no obligation.
Step 02
Planning & Design
Together we finalize scope, materials, schedule, and any required permits, so every decision is made before work begins.
Step 03
Construction
Our crew builds to code and to spec, keeps the jobsite clean and safe, and keeps you informed at every milestone.
Step 04
Final Walkthrough
We walk the finished project with you, resolve every detail, and hand over a space built to last.
06Our Promise
Our promise to you.
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Every estimate is clear, detailed and free — you’ll know exactly what your project includes before any work begins.
