Serving Marin County

We handle construction projects throughout Marin County, from San Rafael to Novato. Our crews understand Marin’s coastal zone regulations, watershed protections, and strict permitting processes. Licensed contractor with experience navigating Marin County’s environmental and building requirements. We serve the following Marin county cities:

Marin County Cities We Serve

  • San Rafael
  • Novato
  • Mill Valley
  • Sausalito
  • Tiburon
  • Corte Madera
  • Larkspur
  • San Anselmo
  • Fairfax
  • Ross

Marin County Fun Fact: Marin County is home to the Golden Gate Bridge’s north tower, and the county has more protected parkland per capita than almost any other county in America—nearly 50% of the county is preserved as parks, watersheds, and open space. It’s also where George Lucas’s Skywalker Ranch is located!

What Can We Build For You in Marin County

Custom Home Building

Building a custom home in Marin County? We handle luxury custom homes, wine country estates, and new construction from site prep through final inspection. Licensed custom home builder with local crews serving properties throughout Marin County.
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Home Remodeling

Our residential remodeling includes kitchen remodels, bathroom renovations, whole home remodels, additions, and exterior work. Licensed crews who show up on time and finish on schedule across Marin County.
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Commercial Construction

Commercial construction for office buildings, retail spaces, restaurants, and warehouses. We handle planning, permits, tenant improvements, and inspections throughout Marin County.
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ZSM General Contractor Services in Marin County

As experienced general contractors serving Marin County, we manage everything from permits through final inspection—custom homes, remodels, and commercial projects.

Custom Home Building

We build custom homes from foundation through final inspection across Marin County. Site prep, framing, mechanical systems, and finishing work handled by licensed professionals.

Luxury homes

High-end finishes, premium materials

Wine country estates

Vineyard and rural properties

New construction

Complete build from site prep

Design-build

Architectural design through construction

Residential Remodeling

Our residential remodeling covers single rooms through whole home renovations in Marin County. We handle kitchen remodels, bathroom renovations, whole home remodels, basement remodeling, home additions, main floor remodeling, and exterior work.

Kitchen remodels

Cabinets, countertops, appliances

Bathroom renovations

Modern fixtures, finishes

Whole home remodels

Complete property renovation

Basement remodeling

Additional living space

Home additions

Added square footage

Main floor remodeling

Open concept living

Exterior work

Decks, patios, outdoor upgrades

Commercial Construction

We manage commercial construction throughout Marin County—office buildings, retail spaces, restaurants, warehouses, tenant improvements, and commercial remodeling.
zsm construction commercial construction services

Frequently Asked Questions

Getting Started in Marin County

How do I know which service I need in Marin County?

Building on vacant land = custom home. Updating existing home = remodeling. Business property = commercial. Call (707) 849-1961 if you’re not sure what your Marin County property needs.

Do you offer free consultations in Marin County?

Yes. Site visit, plan review, honest assessment anywhere in Marin County. No charge, no obligation. Contact us to schedule.

How long for an estimate in Marin County?

Remodeling: 1-2 weeks. Custom homes: 2-4 weeks. We review plans, visit your Marin County site, price everything accurately.

What areas do you serve in Marin County?

We work throughout Marin County—Santa Rosa, Petaluma, Healdsburg, Sebastopol, Rohnert Park, Windsor, Cotati, Sonoma (Sonoma County). San Rafael and Novato (Marin County).

Are you licensed and insured in Marin County?

Yes. Fully licensed, bonded, insured in California. We maintain all required credentials for working throughout Marin County. Copies available on request.

Project Planning in Marin County

How much will my Marin County project cost?

Custom homes: $400-600/sq ft. Kitchen remodels: $30,000-100,000+. Bathroom remodels: $15,000-50,000+. Costs vary by location within Marin County. Written estimates after plan review and site visit.

Can you work within my budget in Marin County?

Yes. Tell us your budget for your Marin County project—we’ll recommend materials and finishes that work. Honest about what’s achievable at different price points.

Do I need permits in Marin County?

Most projects require permits. We handle applications, submit plans, schedule inspections, ensure Marin County Building Code compliance.

How do payments work for Marin County projects?

Deposit to start, progress payments at milestones, final payment at completion. Never full payment up front. Terms in contract, compliant with California contractor regulations.

What if I want changes during construction in Marin County?

Clear pricing for modifications, timeline impact explained. Everything documented, approved before proceeding on your Marin County project.

Project Timelines in Marin County

How long does a custom home take in Marin County?

12-18 months for most homes. Larger homes, complex sites, extensive custom work takes longer. Weather conditions in Marin County affect foundation and framing schedules.

How long does a remodel take in Marin County?

Kitchens: 6-8 weeks. Bathrooms: 4-6 weeks. Whole home: 3-6 months. Detailed schedules provided at consultation for your Marin County project.

Can I live in my house during remodeling in Marin County?

Kitchen/bathroom remodels—manageable with temporary setups. Whole home remodels—difficult. We’ll discuss options for your Marin County property.

What causes delays in Marin County?

Permit processing, weather, material delivery, unforeseen structural issues. We build buffer time, communicate immediately if delays occur on Marin County projects.

Do you work year-round in Marin County?

Yes, but weather affects outdoor work in Marin County. Can’t pour concrete in freezing temps or frame in heavy rain. Interior work continues year-round.

Quality & Process in Marin County

How do you ensure quality in Marin County?

Project managers inspect at key milestones on all Marin County projects. Check work quality, verify code compliance, ensure subcontractor standards. Problems fixed immediately.

What warranties do you provide in Marin County?

One-year workmanship warranty on all Marin County projects. Material warranties vary by manufacturer—we help register products, maintain documentation.

Are your subcontractors licensed in Marin County?

Every subcontractor carries current California licenses and insurance. We verify credentials before anyone works in Marin County.

How often will you communicate during my Marin County project?

Weekly updates by phone or email. Visit site anytime during work hours. Walkthroughs scheduled for major milestones on Marin County projects.

What if I have concerns about my Marin County project?

Call or email immediately. Project manager responds within 24 hours on weekdays for all Marin County projects.

Why Choose ZSM Construction Co. in Marin County

Learn more about ZSM Construction Company and our work throughout Marin County.

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Complete project management

Permits, scheduling, inspections across Marin County
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Transparent pricing

No hidden fees on Marin County projects
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Licensed crews

Every trade verified for Marin County work
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Quality materials

Code-compliant suppliers throughout Marin County
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Direct communication

Weekly updates on your Marin County project
About us

Customer Reviews

See what our clients say about working with us throughout Marin County. Visit our reviews page to read more about their experience building with ZSM Construction Co.

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Contact ZSM Construction Co. for Marin County Projects

Ready to start your Marin County project? Contact ZSM Construction Co. at (707) 849-1961 for a free consultation. We’ll review plans, visit your Marin County site, provide detailed estimate.

ZSM Construction Co.
 Skylane Blvd
Santa Rosa, CA 95403
Phone: (707) 849-1961

(707) 849-1961Schedule Your Consultation

Service Areas in Marin County

Relocating to Marin County? We help clients moving from out of state plan projects before arrival.

Visit our service areas page for complete coverage information across Sonoma and Marin County.

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