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
Fast, Reliable Home Remodeling Across Foster City
Home remodeling in Foster City starts with understanding what’s under your floors. Most homes here sit on engineered fill dredged from San Francisco Bay in the 1960s, and after fifty-plus years, that ground has settled in ways solid-soil cities never see. We scope every project by evaluating that settlement first, then building your remodel on a level, stabilized base. If you’re planning a kitchen, bath, addition, or ADU in Foster City, call (833) 589-8103 for a free estimate that accounts for your specific lot conditions before we ever quote a cabinet line.

Why Seaside Contractors Is Foster City’s Preferred Home Remodeling Company
Glen Sorrento leads a team that has worked on lagoon-edge ranches, planned-neighborhood townhomes, and waterfront properties throughout the 94404 zip code. We know which Foster City blocks have the deepest fill, which lagoon frontages pull the most salt fog, and which original 1960s floor systems are most likely to need re-leveling before tile or cabinetry goes in. Clients in Foster City consistently tell us the difference is in the pre-construction scope: we identify settlement, moisture, and corrosion issues before they become change orders.
One contractor manages your entire project. That means the same team handling your structural work is also coordinating your countertop templating, your window rough-in, and your permit inspections. No passing blame between subs. No gaps in accountability. For Foster City homeowners, that matters because the site conditions demand it.
We respond to Foster City estimate requests quickly, typically scheduling site visits within days, not weeks. Our quotes are line-item and tied to the specific conditions of your lot: fill depth, lagoon proximity, subfloor age, and exposure. That is the only honest way to price a remodel here.
Styles & brands we work with







Home Remodeling Companies in Foster City
Home Remodeling Companies serving Foster City work on a housing stock that’s overwhelmingly late-1960s to early-1970s ranch homes and townhomes, with a significant number of lagoon-front properties mixed in. The work usually means opening up original construction, correcting what half a century of settlement did to the framing and slab, and rebuilding to current code while preserving the mid-century character homeowners love. Kitchen remodels typically run $14,000 – $45,000, bathrooms $9,000 – $28,000, and full additions $45,000 – $130,000 in Foster City, with site conditions driving the final number.
What a Foster City Remodel Actually Involves
Behind every visible finish there’s a sequence of hidden work: checking foundation level, addressing moisture intrusion from bay air, swapping corroded fasteners, and only then installing new cabinetry, tile, and fixtures. A remodeler who skips those steps just builds a fresh interior on a compromised base. Our Home Remodeling team documents every phase with photos and inspection sign-offs.
When You Need a General Contractor, Not a Handyman
Structural changes, additions, ADUs, and anything touching plumbing, electrical, or load-bearing walls require a licensed general contractor in Foster City. The engineered fill means even “simple” work like removing a wall often reveals uneven settlement that needs correction. A handyman cannot pull the permits or coordinate the dewatering, engineering, and inspection process this city’s geology demands. We can.
Whole House Remodel in Foster City
A Whole House Remodel in Foster City means rethinking every system in the home: foundation and subfloor first, then framing, electrical, plumbing, windows, cabinetry, counters, and finishes. It is the right move when a 1960s ranch needs earthquake retrofit, layout changes, and energy upgrades all at once, rather than one room at a time. Whole house remodels here start around $45,000 for lighter scopes and climb well beyond $130,000 depending on square footage and structural correction. On lagoon-edge lots, expect that number to reflect dewatering and marine-grade hardware.
Subfloor Correction Before Cabinet Installation
Many Foster City homes have floors that look flat but are not level. Original 1960s slab and subfloor work over marsh fill settles unevenly, and new tile will crack or cabinets will rack if we ignore it. Before any KraftMaid or Wellborn cabinetry goes in, we check level, add a leveling layer where needed, and install a moisture barrier. That process typically adds several thousand dollars to a whole house scope, but we price it upfront rather than surprising you mid-job.

Marine Exposure Upgrades
Homes near the lagoons or the bay pull salt-laden fog nearly every night. Original fasteners, hinges, and framing hardware corrode faster than inland homes. In whole house remodels, we switch rough-in hardware to marine-grade stainless where exposure dictates, and we specify finishes that handle continuous moisture. Skipping this step means cabinet hinges staining and tile grout failing within a season or two. We would rather you pay for it once than fight it for years.
Trusted Brands We Service in Foster City
Because we are one contractor managing every trade, we have access to 50+ brand lines across roofing, cabinetry, countertops, windows, plumbing, and more. In Foster City, we regularly specify Schluter waterproofing systems behind showers and tub surrounds, not because it is the easy option but because lagoon-adjacent bathrooms need behind-the-wall moisture control that holds up. Delta and Toto plumbing fixtures are common calls for remodeled baths where we want durable, serviceable hardware that resists salt-air wear. Call us and we will match the material to your project and your exposure, rather than selling you what is in stock.
See the difference
Before
After
Before
After
Before
AfterCommon Home Remodeling Problems We See in Foster City Homes
- Uneven subfloor settlement over engineered fill: Original 1960s slab and subfloor systems have consolidated unevenly over half a century. New tile and cabinetry need a level, stabilized base or they fail within years.
- Salt-lagoon corrosion on fasteners and hardware: Bay fog carries salt that eats standard fasteners, hinges, and cabinet hardware near the lagoons. We swap in marine-grade materials where it matters.
- Moisture intrusion in walls and flooring near waterfront lots: High groundwater and bay humidity push moisture into framing and finished surfaces. Without proper barriers and ventilation, you get warped flooring, mold, and failing finishes.
- Permitting and dewatering surprises on lagoon-edge additions: Adding square footage near a lagoon or the bay often triggers dewatering requirements and deeper foundation engineering. Contractors who do not work this soil get surprised mid-job; we scope it before quoting.
Pricing for Home Remodeling in Foster City, CA
Foster City pricing reflects what is under the ground and in the air. Engineered fill settlement correction, marine-grade hardware, and moisture barriers add real line items that solid-ground cities like San Mateo or Belmont rarely see. A kitchen remodel here runs $14,000 – $45,000, a bathroom $9,000 – $28,000, a home addition $45,000 – $130,000, and an ADU $90,000 – $220,000 depending on site conditions and square footage. Cabinet installation ranges $4,000 – $13,000 and countertops $2,000 – $6,500, with premium brands like Cambria, Silestone, and Caesarstone at the upper end. The right way to price this is to walk the lot, check the fill, and only then quote. Call (833) 589-8103 and we will do exactly that.
| Project | Foster City Price Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
We Also Serve Cities Near Foster City
Beyond Foster City, our team serves Home Remodeling in Foster City and the surrounding communities of Redwood Shores, San Mateo, Belmont, and Highlands-Baywood Park. If you live in any of these areas and want a contractor who understands bay-side building conditions, call us for a free estimate.
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 Home Remodeling in Foster City
A Foster City remodel costs more because your home sits on engineered fill over former marshland, not solid ground. Settlement correction, dewatering, and marine-grade hardware all add line items that solid-soil cities never price. A kitchen here may run $14,000 – $45,000 versus less inland because the subfloor work alone can add thousands. Call (833) 589-8103 for an exact quote, and we will show you which site conditions drive your number.
Foster City is an incorporated city, so most remodels pull permits through the city’s building department, not the county. Structural changes, additions, ADUs, and any plumbing or electrical work require permits. We handle the full permit package, including engineering for fill conditions, and we close out with passed inspections before final sign-off.
Likely yes. Original 1960s subfloors over engineered fill settle unevenly over decades, and new tile or cabinetry installed on an unlevel base will crack, rack, or fail. We check level during the estimate, not after demolition, and price any leveling layer and moisture barrier into the quote before you sign. Call (833) 589-8103 for a site-specific evaluation.
Allowances are line items in your contract for materials not yet selected, like tile or hardware, set at a fixed dollar amount. When actual selections exceed the allowance, the difference becomes a change order. On a Foster City whole house remodel, we set realistic allowances for both materials and site conditions like settlement correction or dewatering, so change orders are rare and never hidden. Ask us during your estimate and we will walk through the line items.
Yes. Detached ADUs on lagoon-edge lots require careful foundation engineering over fill, possible dewatering during excavation, and marine-grade rough-in hardware. We have scoped and built on these lots, and we work with prefab ADU manufacturers as well as traditional construction. ADU construction in Foster City runs $90,000 – $220,000 depending on site conditions and finish level. Call (833) 589-8103 for a free estimate on your specific lot.
Written by Glen Sorrento, Owner at Seaside Contractors, serving Foster City and the surrounding Bay Area.