What We Do
Construction Services in Sonoma, Napa & Marin Counties
Your trusted general contractor near you — from the ground up or a fresh remodel, Cromwell Construction delivers quality craftsmanship across the North Bay.
Residential Services
Residential General Contractor in Sonoma County
Looking for a residential contractor near you? We specialize in new home construction and renovations across Santa Rosa, Healdsburg, Windsor, and the greater North Bay. Whether you're building your dream home from scratch or upgrading your current space, our licensed team brings decades of experience to every project.
New Home Construction
Full-service new home builds from foundation to finish, tailored to your vision and budget.
Room Additions
Expand your living space with seamlessly integrated additions that match your existing home's style.
Kitchen Remodels
Transform your kitchen with custom cabinetry, countertops, flooring, and modern fixtures.
Bathroom Renovations
Upgrade bathrooms with premium tile work, custom vanities, and spa-quality finishes.
Flooring Installation
Hardwood, tile, luxury vinyl, and more — expert installation for every room in your home.
Interior Finishing
Crown molding, built-ins, trim work, and custom millwork that elevate every interior space.
Window Installation
Energy-efficient window installation and replacement for improved comfort, curb appeal, and natural light.
Commercial Services
Commercial Contractor Serving the North Bay
Need a commercial general contractor near you in Sonoma, Napa, or Marin County? Cromwell Construction delivers commercial construction services on time and on budget. We understand that your business can't afford delays, and we work efficiently to meet code, budget, and your operational needs.
Commercial Build-Outs
Office spaces, retail locations, and commercial interiors built to your specifications.
Tenant Improvements
Renovate and upgrade existing commercial spaces to meet new tenant requirements.
Restaurant & Hospitality
Specialized construction for restaurants, hotels, and hospitality venues with health code compliance.
Office Renovations
Modern office redesigns that improve workflow, aesthetics, and employee satisfaction.
ADA Compliance Upgrades
Bring your commercial property into full ADA compliance with minimal disruption.
Commercial Flooring
Durable, attractive flooring solutions designed for high-traffic commercial environments.
Remodeling
Remodeling Contractor Near You in the North Bay
A remodel is one of the best investments you can make in your property. Our remodeling team serves homeowners across Sonoma County, Napa County, and Marin County — handling everything from design consultation through final walkthrough, ensuring your project is completed on time, on budget, and beyond expectations.
Whole-Home Remodels
Complete interior transformations that modernize your home while preserving its character.
Home Theater & Media Rooms
Custom-built entertainment spaces with premium cabinetry, acoustics, and lighting.
Fireplace & Feature Walls
Stunning focal points including stone fireplaces, wood accent walls, and custom built-ins.
Basement Finishing
Convert unfinished basements into functional living areas, home offices, or recreation rooms.
Outdoor Living Spaces
Decks, patios, pergolas, and outdoor kitchens that extend your living space outdoors.
Aging-in-Place Modifications
Thoughtful modifications that make your home safer and more accessible for years to come.
Ready to Start Your Project?
Contact us today for a free consultation and estimate. We serve Sonoma, Napa, and Marin Counties.
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