WHOLE-HOME REMODEL

Home remodeling in the Bay Area, down to the frame and back.

When the whole house needs to change, we take it down to the studs and build it back: design, permits, structure, every trade, and the finish work. One in-house project manager runs it all, on a fixed-price contract.

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Rated 5.0 · 256 reviews · CSLB #1012789

Drone view of the Belmont home after its whole-home remodel
Belmont · whole-home remodel
What's included

Everything between the first sketch and the last coat of paint.

A whole-home remodel is a full-gut renovation: the scope of a kitchen remodel and a bathroom rebuild plus everything between them, run as one project instead of five.

  • Design and drawings. In-house design-build, or we work with your own architect or designer. Photorealistic 3D renderings arrive within hours and get revised until you approve.
  • Permits, pulled by us. We complete the application and pull the building permit ourselves. Permit fees sit outside the written proposal, so you see them separately.
  • Structure and systems. Demolition, framing, HVAC, electrical, and plumbing, with materials procured while the walls are still open.
  • Cabinetry and finish work. Paint, cabinets, fixtures, doors and windows, floors, and trim.
  • A workmanship warranty. If something needs attention after completion, it gets addressed promptly.

How you'll know what's happening

One project manager owns the job from proposal to final walk-through, keeps you updated as the work moves, and puts every change in writing for your signature.

The price you sign is the price you pay. It moves only if you change the scope, or if we uncover hidden problems behind the walls, and even then, nothing proceeds without your signature.

How it works

Three phases, one person answerable for all of them.

Walk the property

A project manager visits at no charge and covers what's possible, what it costs, and what your city will require. No obligation.

Design to a fixed price

Renderings arrive within hours and get reworked until they match what you want. Then a formal written proposal with cost and timeline, sign it, and the price holds.

Build in three phases

Prelim (spec, quote, permits), structural (demo, framing, HVAC, electrical, plumbing, drywall), finish (paint, cabinets, fixtures, floors, trim).

full 7-step process on the about page

See the full process

The permit strategy

Some of our remodels are new houses in everything but paperwork.

A quiet fact of Silicon Valley building: keep part of the existing structure, often nothing more than the foundation, and the city can review the project as a remodel rather than new construction. If the house you want is bigger than the house you have, that one decision reshapes the whole job:

  • Plan check moves faster. At most building departments, remodel review is a shorter line than the one for new construction.
  • The budget goes further. Filing as a remodel generally costs less than filing a brand-new house.
  • You're home sooner. Quicker approvals plus retained structure add up to an earlier move-in date.

Our flagship project preserved a significant portion of the existing foundation, demolished everything above ground, and still permitted as a remodel while picking up 700 square feet on the main floor and another 300 upstairs. When there's truly nothing on the lot worth keeping, that's a custom home, and we build those too.

Ask whether your house qualifies

Original house before the rebuild that permitted as a remodel
Before the rebuild
Finished rebuild on the retained foundation, 1,000 square feet larger, permitted as a remodel
After, 1,000 sf larger, on the retained foundation
The Bay Builders & Remodeling team gathered around plans at the San Jose office
Who shows up

One manager. A deep bench behind them.

Your project manager is a Bay Builders employee, not a rotating point of contact. Behind them sits a trade network vetted job by job since 2015, architects and designers, plumbers, electricians, roofers, painters, cabinet makers, and the landscape crews who handle our outdoor living work. A full-gut remodel touches every one of those trades; you never have to find, schedule, or referee any of them.

2015Building in the Bay since
#1012789CSLB · B general building
HouzzBest of Houzz 2026

Want to meet the person who'd run your job before you sign anything? Call (408) 216-7466, the consultation is with a project manager, not a salesperson.

Reviews

Judged at the final walk-through.

Bay Builders holds a 5.0 rating on Google across 256 reviews, and whole-home clients tend to name the people who ran their job. How we handle permits, pricing, and references is covered on the FAQs page.

Remodeling with Bay Builders & Remodeling was AMAZING! From the ease of scheduling the initial appointment to the final walk through each step of the way exceeded our expectations!!

★★★★★
Henry Z. · Home Remodel, San Mateo

Their attention to detail and craftsmanship was outstanding, every finish and trim showed their dedication to perfection.

★★★★★
Han · Google review

The quality of craftsmanship exhibited by Bay Builders is extremely impressive and was one of the biggest differentiators for us when viewing their past projects compared to other competitors.

★★★★★
Gregory Kemper · Google review

Bay Builders came highly recommended by our agent and turned out to be one of the best teams we have worked with. They have worked on so many large projects, nothing would seem difficult for them to build or implement.

★★★★★
Geoffrey Sun · Google review
Recent work

Stripped to the frame, finished to the trim.

One Belmont house was rebuilt inside and out on its original footprint. Another preserved a significant portion of its foundation while everything above came down, the rebuild-as-a-remodel story told above. Projects at that scale start to overlap with our custom home work; if you're after new square footage rather than reworked square footage, start with room additions.

Browse all projects

Common questions

Nine questions, answered plainly.

What does a whole-home remodel cost in the Bay Area?

It depends entirely on the house and the scope, which is why every project gets a formal written proposal after a complimentary consultation. Your contract price is fixed once signed and changes only if you change the scope or we find hidden problems such as wood rot or structural damage, so it's smart to hold a contingency for what's behind the walls. Permit fees are not part of the written proposal, so budget for those separately.

How long does a whole-home remodel take?

It depends on the size of the house and the scope of the work, so we won't quote a number here. What you do get is a timeline in the written proposal before you sign, and a project manager who tracks the build phase by phase against it.

Where do we even start?

Call, send the contact form, or come by the office on Charcot Ave in San Jose. The front desk sets the appointment, and a project manager meets you at the house to talk through what's feasible on your lot, roughly what it costs, and what your city will and won't allow. It's complimentary, there's no obligation, and you leave holding options and a next step rather than a brochure.

Will my remodel need a permit?

Almost certainly. Framing, mechanical, plumbing, and electrical changes each typically require one, and every city interprets the code its own way. You won't be the one standing at the counter. We complete the application and pull the permit ourselves.

What if I only want to redo one room?

Then you want a smaller project than this page describes, and each is its own service: bathrooms, kitchens, additions and ADUs.

Can we live in the house during the remodel?

Plan to be out for the structural phase, the house is open to the frame, and the plumbing and electrical are disconnected while systems get rerouted. Whether the finish phase is livable depends on your scope and your tolerance for dust. Your project manager maps it out phase by phase before you sign, so the answer is in the proposal, not a surprise in month two.

What happens if you open a wall and find rot?

Work on that item pauses and you hear about it right away, with options and prices attached. Anything you approve arrives as a written, itemized change order, and nothing proceeds without your signature. This is precisely what a contingency is for, hidden damage is the one thing a fixed price can't see through drywall.

How do we keep a six-figure project on budget?

Make the decisions before demolition. That's what the renderings are for, so choices happen on paper instead of mid-build. From there the contract price is fixed, and it moves for exactly two reasons: scope you add, or problems nobody could have seen.

Can you build it green?

Yes. Energy-efficient, eco-friendly, and fire-resistant construction are all in our portfolio, and a full remodel is the cheapest moment to fold them in, bamboo floors, countertops made from recycled glass, low-VOC paints, and windows, insulation, and appliances picked for what they stop wasting.

Service area

Where we remodel.

Crews roll out of San Jose and serve three areas:

Not sure if your address is in range? Ask us.

NEXT STEP

Tell us how far to take the house.

Call to schedule a complimentary, no-obligation consultation at your home, anywhere in Santa Clara County, San Mateo County, or nearby parts of the East Bay.

Call (408) 216-7466 Contact details

Rated 5.0 · 256 reviews · CSLB #1012789

Call (408) 216-7466Complimentary consultation · CSLB #1012789 · ★ 5.0 across 256 reviews