Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Remodeling Company in Foster City, CA
Home renovation in Foster City means working on ground that didn’t exist a century ago. Nearly every lot sits on engineered bay fill, which changes how we handle foundations, drainage, and structural work compared to inland Peninsula cities. Millwright Builders has served Foster City since 2014, and we plan every project around the realities of bay mud, high groundwater, and salt air. If you’re planning a kitchen overhaul, a second-story addition, or a whole-home renovation, call (866) 925-0334 to start the conversation and get a free estimate.
Why Foster City Homes Are Different
Foster City’s housing stock is mostly 1960s through 1980s construction, built during the planned-community boom. Those homes now sit at the age where original systems fail: cast-iron drain lines corrode, electrical panels run short, and single-pane windows fog over. More importantly, the ground beneath them was pumped from the Bay. High water tables mean we regularly hit groundwater within a few feet of grade on excavation work. Crews driving in from San Mateo hillside jobs aren’t prepared for that; our teams plan for dewatering, soil settlement, and liquefaction from the first site visit.
The salt-laden air off the Bay accelerates corrosion on exterior hardware, deck fasteners, and flashing. Storm drainage is a design concern on nearly every project because the city sits low and flat. Permits route through Foster City’s own building division, which enforces strict Bay-frontage and flood-zone rules. None of this makes renovation impossible, but it does mean the contractor you choose needs to understand fill-based foundations and older slab-on-grade construction before swinging a hammer.
Styles & brands we work with







Our Main Foster City Services
The two projects Foster City homeowners call us about most are full general contracting engagements and complete home remodels. Both demand a contractor comfortable with the city’s fill-based foundations and strict permitting process.
General Contractor in Foster City
A general contractor in Foster City handles the structural, mechanical, and coordination work that trade-specific specialists don’t touch. When a project spans framing, roofing, windows, finishes, and site work, one accountable contract matters. In Foster City, that accountability includes managing dewatering when a crawlspace or slab addition goes below the water table. Our General Contractor in Foster City page details how we run multi-trade projects from permit to final inspection.

Home Remodeling in Foster City
Home remodeling in Foster City often means opening up 1970s floor plans, reworking dated kitchens and baths, and correcting decades of deferred maintenance in the same phase. Bayfront conditions shape material choices: we specify stainless or coated exterior hardware that resists salt corrosion, and we evaluate slab conditions before any layout change. For a full breakdown of what a Foster City remodel involves, visit our Home Remodeling in Foster City page.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Home Renovation in Foster City
Home renovation in Foster City is the broadest version of our work: structural changes, full-system replacements, and finish upgrades handled under one contract. Homes built between the 1960s and 1980s on engineered fill carry a specific set of liabilities, from settled slabs to corroded drain lines, and renovation here almost always uncovers at least one condition that a less prepared contractor would miss. High groundwater and Bay-front flood rules mean any work below grade, or any change that alters drainage, needs a builder who reads those conditions correctly from day one. That’s the core of our Home Renovation service: we inspect the whole structure, identify what the fill has done to it, and build a scope that fixes the root problems instead of just layering finishes over them.
Home Renovation Contractors
Signs you need it
You’re looking at multiple trades needing work at once, such as a failing roof, a dated kitchen, outdated wiring, and a bathroom that leaks, and managing four separate contractors feels like a second job.
What it costs in Foster City
Full-scale renovation work in Foster City typically runs $14,000 to $45,000 for a kitchen, $9,000 to $28,000 for a bathroom, and $45,000 to $130,000 for an addition, depending on scope and site conditions.
How we do it
We start with a structural and drainage assessment of the existing home, then produce a line-item scope that sequences demolition, rough-in, inspection milestones, and finish trades in the correct order for Foster City’s permit process.
Home Renovation Companies
Signs you need it
You need a company with the licensing and personnel to pull permits, schedule inspections, and carry the project from demolition through final walkthrough without you coordinating each trade.
What it costs in Foster City
Working with a full renovation company rather than piecemeal subcontractors typically falls in the same ranges: $14,000 to $45,000 for a kitchen, or $9,000 to $28,000 for a bathroom remodel in Foster City.
How we do it
We assign a project lead, establish a schedule with inspection checkpoints, and handle submittals to Foster City’s building division, so the permit load and coordination burden stays on our side of the contract.
Home Improvement Contractors
Signs you need it
Your home needs meaningful upgrades across multiple areas, and you want one licensed contractor accountable for quality, code compliance, and warranty coverage rather than a patchwork of handymen.
What it costs in Foster City
Home improvement projects in Foster City span a wide range: cabinet installation runs $4,000 to $13,000, countertops $2,000 to $6,500, and window replacement $4,500 to $15,000.
How we do it
We define the minimum viable scope that addresses your stated goals, then price optional upgrades separately so you can see exactly what each choice costs before we start cutting.
Renovation Contractors
Signs you need it
Your project touches structure, such as removing a load-bearing wall or changing the roofline, which means Foster City requires stamped drawings and an inspector who verifies the work at set milestones.
What it costs in Foster City
Structural renovation in Foster City depends heavily on scope, but a bathroom remodel starts around $9,000 and a home addition can run from $45,000 up to $130,000.
How we do it
We coordinate the structural engineer, submit plans to Foster City’s building division, and schedule inspections so the work passes the first time rather than cycling through corrections.
What Home Renovation Costs in Foster City
| Item | Typical range in Foster City |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
How long does a full home renovation take in Foster City?
A kitchen runs 6 to 12 weeks, a bathroom 3 to 6 weeks, and a whole-home renovation or addition 4 to 12 months. Foster City permits typically add 2 to 6 weeks before work starts. Call (866) 925-0334 and we’ll map a realistic schedule for your scope.
Will a renovation in Foster City require special permits?
Yes. Foster City’s building division reviews structural, electrical, plumbing, and drainage work, and Bay-frontage rules can add flood-zone review. We prepare and submit the full permit package. Call (866) 925-0334 to discuss your project’s permit path.
Brands We Service in Foster City
We specify and install materials we’ve actually vetted, including roofing lines from IKO and Atlas, plus countertops and siding from partners whose warranties we understand well enough to honor. Common parts for these systems are stocked locally, so warranty follow-ups don’t stall while pieces ship from out of state. See our brands for the full list.
See the difference
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AfterPricing for Remodeling Company in Foster City, CA
| Service | Typical range in Foster City |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Small Kitchen Remodel | $9,000 – $20,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Roof Replacement | $8,000 – $20,000 |
| Window Replacement | $4,500 – $15,000 |
| Vinyl Fence Installation | $3,500 – $9,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
In Foster City, prices climb when a project hits groundwater during excavation, when existing slabs have settled and need correction, or when Bay-frontage flood rules force additional drainage engineering. Those are unknowns we identify in the estimating phase, not surprises we spring on you mid-project. Every estimate is a written line-item quote, and we do not change the price once work starts unless you change the scope.
Neighborhoods We Serve in Foster City
We work throughout the 94404 ZIP, from the original planned neighborhoods near Leo J. Ryan Park to the waterfront-facing streets along Beach Park Boulevard. Homes here share the same fill-based conditions, though some blocks show more slab settlement than others, and we check every site individually rather than assuming one neighborhood matches the next.
- Isle Cove
- Bay Vista
- Seaport
- Gull Harbor
- Foster Square
We schedule estimates across Foster City within a few business days and can usually start smaller projects within two to four weeks once permits clear.
Service Area – Cities Near Foster City
Millwright Builders also serves the surrounding Peninsula communities. We work in Redwood Shores, CA on similar bayfill lots, in San Mateo, CA on older hillside and downtown homes, in Belmont, CA on sloped lots with drainage complexity, and in Highlands-Baywood Park, CA on mid-century homes that share Foster City’s era of construction.
Serving Foster City, CA — Our Local Coverage Area
We’re based in the Foster City area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs About Remodeling Company in Foster City
Estimates are usually scheduled within a few business days. Once you approve a scope and Foster City issues permits, smaller projects can start in two to four weeks; larger renovations depend on permit review timelines. Call (866) 925-0334 to confirm current availability.
Many Foster City neighborhoods fall under HOA review for exterior changes, including paint, roofing materials, fences, and additions. We prepare submittal packages and work with your HOA’s architecture committee alongside the city permit process. Interior-only renovations typically don’t require HOA review.
Yes. We prepare drawings, coordinate engineers when needed, submit to Foster City’s building division, and manage inspection scheduling through final sign-off. Bay-frontage and flood-zone rules in Foster City can extend review, and we account for that in the schedule. Call (866) 925-0334 to discuss your specific project.
What happens when you call
- 1A real person answersNo phone trees — talk to a local construction pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Foster City Customers Say
"Every inspection passed first time. The building department clearly knows him and that made the whole process easier."
— Marco Martinez"Weekly site meeting, every week, with a written summary afterward. I always knew where the money and the schedule stood."
— Eduardo Torres"Excellent build. Costs came in about six percent over the original contract, driven mostly by material price movement during the build, which he documented each time."
— Priya Mehta