Licensed General Contractor | Santa Rosa, CA | Lic #1133241

Your Your House Is Not a Job Site to Us. It's Your Home.

One contractor. Every trade. Personal involvement from the first call through the final walkthrough. Serving Sonoma, Marin, East Bay, and Fairfield-Vallejo

Recent Work Across Sonoma County and the North Bay

Modern kitchen with dark cabinets, stainless steel appliances, and light wood flooring.

Kitchen Remodel in Santa Rosa, CA
Full kitchen renovation with custom cabinetry, new countertops, updated electrical, and modern finishes.

Modern bathroom with freestanding tub, walk-in shower, and skylight lighting.

Bathroom Remodel in Sonoma County, CA, Complete bathroom renovation with custom tile, freestanding tub, vanity installation, and electrical upgrades.

Elevated tiny house among trees with ladder and curtains underneath

ADU Construction in Sonoma County, CA, Custom accessory dwelling unit with framing, electrical, exterior finishing, and full project management.

Two people standing in a room covered with drop cloths, painting supplies nearby and a ladder by the window

Most Homeowners Have Been Through This at Least Once

You've hired a contractor before. The bid looked reasonable, the first conversation went well, and somewhere between signing the contract and the final invoice, the experience fell apart.


The cost grew without warning. The person you hired wasn't the one doing the work. Getting a straight answer required more follow-up than it should have.


If that sounds familiar, you're not looking for a cheaper contractor. You're looking for a different one.

What You Can Actually Expect From This Project

Black handshake forming a heart shape with a house-like roof outline on white background

Your estimate is honest from the start

Before any work begins, you get a clear scope and a straight number. If something is genuinely hard to predict, older homes, hidden plumbing, aging electrical, you'll hear that upfront, not after the walls are open.

Nearly blank white screen with a tiny black icon in the top-left corner

Costs don't move without your approval

Surprises happen on real construction projects. What shouldn't happen is finding out about them on the invoice. At JCW, if something changes, you get a call with options before anything proceeds.

Black house icon with a roof and chimney on a white background

Your home is treated like it matters

Every decision made on your job site, what to leave, what to fix, what to redo, is made with the same standard John applies to his own home.

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One contractor covers every trade

General contracting, remodeling, electrical, plumbing, flooring, and concrete, all under one contract. No coordinating between specialists. No gaps where trades hand off and accountability disappears.

Man smiling while entering a code on a wall-mounted security keypad.

Residential Services Across Santa Rosa and the North Bay

Couple embracing in a modern kitchen with dark cabinets, white island, and a vase of flowers on the counter
Hands adjusting wires inside an open electrical control panel box.
Black insulated pipes and valves connected to a metal control box in an industrial setting
Bright modern open-plan living room with wood floors, dark kitchen, large windows, and stairs on the right
Person smoothing wet concrete with a long blue tool on a sidewalk construction site
Modern backyard with a small gray cabin, patio seating, and a lush green lawn at sunset

What Homeowners Say About Working With JCW

I've been doing this work for 25 years, and I've built my reputation one project at a time.

Google Reviews: ~ 14 five-star reviews

Thumbtack Reviews: ~ 75 five-star ratings

Homeowners hire me because I listen, stay involved, and treat their homes with respect. Here's what a few have said:

⭐⭐⭐⭐⭐ Lisa Kearney

I am in Petaluma and hired JCW Construction to complete a list of projects that have been on my list for a very long time. Their team replaced/upgraded all of my ceiling lights, fixed the bathroom ceiling fan and installed 2 ring cameras. I am in love with my new lights! My experience could not have been better! They were prompt, courteous and professional. Their services were also very reasonably priced. If you need any electrical work, please consider contacting them. You will not be disappointed.

⭐⭐⭐⭐⭐ Kayla Hamilton

I had a great experience with John & JCW! They were professional, punctual, and did high-quality work. They quickly diagnosed and fixed an issue with my wiring and they installed new lighting efficiently and at a fair price. I highly recommend them to anyone needing electrical work!

⭐⭐⭐⭐⭐ irving ramirez

John came and installed a Level 2 home charger for my vehicle. He was quick and on time. Price was more than reasonable. Very professional and transparent with costs. Very friendly and would definitely recommend him for any home project you may have.

How to Get Started With JCW

Schedule a Call

Reach out by phone or form. You'll hear back from me directly, same day for most inquiries. You don't need a fully formed plan. Just tell me what you're working with.

I will Walks the Project

I come to you, assess the job, and give you a clear itemized estimate covering all trades. If something is hard to predict, you'll hear about it before the estimate is finalized, not after.

The Work Gets Done Right

I'm on your job from the first day to the last. You'll always know where things stand. We walk the finished work together, and your approval is what closes it out.

Serving Homeowners Across Northern California

JCW General Construction is based in Santa Rosa and takes on residential projects throughout the North Bay, East Bay, and Fairfield, Vallejo corridor. If you're outside Santa Rosa and wondering whether John serves your area, he likely does.


Sonoma County:  Santa Rosa, Petaluma, Rohnert Park, Windsor, Healdsburg, Sebastopol, Cotati


Marin County:  San Rafael, Novato, Mill Valley, Fairfax, San Anselmo


East Bay:  Concord, Walnut Creek, Pleasant Hill, Martinez, Orinda, Oakland


Fairfield/Vallejo Corridor:  Fairfield, Vallejo, Benicia, Vacaville

Have a project in Mind? Let's Talk.

You don't need a full plan before you call. Most homeowners start with a general idea and a lot of questions. That's enough. I'll give you straight answers about what your project involves and what it realistically costs before you commit to anything.