(707) 575-5608 dave@kochconstruction.net

General Contracting

Koch Construction Company » General Contracting

Setting the bar for Santa Rosa General Contractors

Specializing in commercial and residential construction for over 40 years, Köch Construction diligently remains one of the most trusted general contractors for Sonoma, Marin, and Napa counties.

Wineries, schools, offices, warehouses, or a private home, our team has the experience as a general contractor to tackle your project. 

You’ll get high quality construction, on-time delivery, and exceptional customer service when you choose Köch Construction.

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metal building erection

Why Choose Köch Construction?

We bring you fair pricing, top quality construction, and exceptional customer service.

Our established network of material providers, vendors, and subcontractors to bring you the best prices for the highest results in your budget.

We work with your business, organization, or home, to craft a custom construction plan. Clear communication and transparent pricing let you rest easy knowing what you’re paying for and why.

Your Friendly General Contractor with Over 40 years of Experience

From a bedroom remodel to a metal building erection, our teams bring diverse construction skills to every project, large or small.

We’re a fully licensed and insured Certified General Contractor in the State of California and a member of the Associated Builders and Contractors (ABC). Our trained crews can help you design and build:

  • Tilt-Up Concrete Buildings
  • Wood Frame
  • Medical Office Buildings
  • Restorations & Remodeling
  • Metal Buildings
  • Wineries
  • Tenant Improvements
  • Custom Homes
  • Apartments

Old-fashioned work ethics, highly trained staff, and a strong commitment to customer service are the driving forces behind Köch Construction.


We’ve developed long-standing relationships and earned a reputation based on trust, quality, integrity, and reliability. How did we do it?

Through honest workmanship and exceptional construction. Our projects are built accurately and decades of low-maintenance ownership keeps clients coming back, again and again.

Our Projects

Young entrepreneurs, established corporations, community organizations—each projects tells a different story. Browse our portfolio for some ideas of what we can do as your general contractor.

a building with a wooden door
the culinary institute of america sign
a stone building with palm trees in front of it
the culinary institute of america sign
a large stone building with a clock tower on top
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