Family-owned · Est. 2001

Quality work
that lasts
generations.

Custom renovations and additions. 25 years on the job. 1,200+ projects. Zero shortcuts.

25years building
1,200+projects done
4.9★ 187 reviews

Featured projects

A portfolio
of craft.

Kitchen

Eastside Craftsman Kitchen

Bath

Marble Master Suite

Addition

Sun-room Addition

Whole-home

1925 Tudor Restoration

Custom build

Modern Hillside Home

Detail

Custom Millwork & Built-ins

Services

What we build.

Kitchen Remodels

Full-scope kitchen renovations from layout planning to custom cabinetry, stone work, lighting, and trim. We work with your designer or bring our own. Average project: 4–8 weeks.

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Bathroom Renovations

Master suites, powder rooms, and wet rooms. Tile, plumbing, vanities, and lighting — coordinated by one project manager. Permit-handled. Average: 3–6 weeks.

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Home Additions

Add square footage that feels original. Sun-rooms, master suite additions, second-story builds. Includes architecture, structural, and full finishing. Average: 12–20 weeks.

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Whole-Home Renovations

Down-to-the-studs renovations that respect the bones of your home. Especially good with pre-1950 craftsman, tudor, and colonial restorations. Average: 6–9 months.

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Custom Builds

Ground-up homes designed and built to last 100 years. We work with your architect or partner with ours. Lot to keys. Average: 12–18 months.

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The process

Four steps,
nothing skipped.

  1. 01

    Consult

    We meet at your home. Walk the project. Listen first.

  2. 02

    Design

    Drawings, materials, fixed-fee bid. No surprises.

  3. 03

    Build

    Daily site clean. Weekly progress photos. One PM.

  4. 04

    Walkthrough

    Punch list closed before you sign off. 5-year workmanship warranty.

About

Three generations,
one standard.

My grandfather started Stonebridge framing barns in Ohio in 1958. My father took it to homes in 1979. I picked up his hammer in 2001 and brought the company west.

"My father told me a wall is either plumb or it isn't. There's no in-between, and there's no excuse. We've never built a wall that wasn't plumb."

I run every project myself. I show up to every walkthrough. If something isn't right, I make it right — that's not a marketing line, that's the only way I know how to work.

— John Stonebridge,
Owner

Reviews

Word from the neighborhood.

"John walked us through every decision. The kitchen feels like it's always been there — which is the highest compliment I can give a renovation."
— Karen & David · Kitchen remodel · Lafayette
"We've worked with three contractors over the years. Stonebridge is the only one we'd hire again, and we're going to."
— Tom L. · Whole-home renovation · Piedmont
"On time, on budget, and the millwork is honestly art. They left the site cleaner each day than my own house."
— Maria K. · Master suite addition · Walnut Creek

Ballpark

Quick estimate.
Two minutes, no email.

A rough range to ground the conversation. Final pricing is set after we walk the site.

Estimated range
$120,000 – $180,000

Includes labor, materials, permitting, and finish. Excludes major structural surprises and any items you bring (appliances, art, etc.).

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Tell us about your project.

Replies in under 24 hours, M–F. Or call (925) 555-0127.

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