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 Portola Valley, CA
Home renovation in Portola Valley means working on large custom homes, often on steep, wooded lots where fire code and geology decide what gets built. San Bernardino Contractors handles the full scope – kitchens, bathrooms, roofing, windows, hardscaping, and ADUs – under one roof, with access to 50+ named brands so you pick the material and we handle the build. If you’re planning a project, call (855) 473-5620 for a free estimate.
Why Portola Valley Homes Are Different
Portola Valley sits in a wooded valley of the Santa Cruz Mountains, and nearly every lot backs onto open space or heavily wooded hillsides. That triggers Chapter 7A WUI requirements – ignition-resistant siding, decking, vents, and dual-pane tempered glazing – that neighboring towns like Menlo Park or Woodside often don’t enforce as strictly. The town’s own building department is known for kicking back plans that sail through San Mateo County, usually over Wildland-Urban Interface detailing or extra geotechnical scrutiny on hillside lots.
The housing stock skews heavily toward large custom-built single-family homes on multi-acre lots, many with detached guest houses, barns, and equestrian structures. Original ranch homes from the 1950s through the 1970s frequently get torn down or extensively remodeled. There’s essentially no tract housing here, which means every project is a one-off – custom framing, custom drainage, custom everything. Steep lots bring retaining-wall and foundation challenges from expansive soils and seasonal runoff. Dry summers and fall Diablo wind events make fire-resistant construction and defensible-space clearing central to every job we take on.
Styles & brands we work with







Our Main Portola Valley Services
Most Portola Valley homeowners call us about two things: full-scale remodels that require a general contractor to coordinate every trade, and whole-home renovations that touch multiple systems at once. Here’s what each involves locally.
General Contractor in Portola Valley
A general contractor in Portola Valley does more than schedule subs. On a hillside custom home, you need someone who understands Chapter 7A WUI detailing, geotechnical review, and septic-and-well realities before the first permit gets pulled. We manage framing, roofing, siding, windows, and every interior trade from one point of accountability – no subcontractor shuffle. General Contractor in Portola Valley

Home Remodeling in Portola Valley
Home remodeling here usually means working within an existing custom home while bringing it up to current fire code. That often includes replacing siding with James Hardie fiber cement, swapping single-pane windows for dual-pane tempered glazing, and reworking interiors around the home’s original structural logic. We handle the full interior-to-exterior scope, from the roof down to the pavers. Home Remodeling in Portola Valley

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 Portola Valley

Home renovation in Portola Valley typically means bringing a 1950s-to-1970s ranch home up to modern standards while satisfying the town’s strict WUI fire code and geologic review. Many of these older custom homes predate current ignition-resistant construction requirements, so a renovation often includes new siding, dual-pane tempered windows, and fire-rated vents alongside the interior work. Because nearly every lot sits on expansive soils with seasonal runoff, we also address drainage and foundation issues as part of the same project rather than treating them as separate problems. San Bernardino Contractors has served Portola Valley since 2015, and we approach every renovation as a code-heavy, fire-hardened custom build – you can learn more on our Home Renovation page.
Home Renovation Contractors
Signs you need it
Your home predates current WUI code, has single-pane windows, wood siding, or an aging roof, and you’re planning to modernize interiors at the same time.
What it costs in Portola Valley
A full home renovation with a contractor typically runs $45,000 – $130,000 depending on square footage, hillside access, and the finish level you choose.
How we do it
We assess the existing structure and site, pull Portola Valley permits, then sequence the work so exterior fire-hardening and interior remodeling happen as one coordinated project.
Home Renovation Companies
Signs you need it
You’re comparing renovation companies because your project spans multiple trades – roofing, siding, windows, kitchens, and baths – and you don’t want to coordinate four separate specialists.
What it costs in Portola Valley
A multi-trade renovation handled by one company ranges $45,000 – $130,000; smaller scopes like a single kitchen or bath fall into the $14,000 – $45,000 range.
How we do it
We act as the single point of accountability across every trade and material, from GAF roofing and James Hardie siding to Cambria countertops and Kohler fixtures.
What Home Renovation Costs in Portola Valley
| Item | Typical range in Portola Valley |
|---|---|
| Home Addition | $45,000 – $130,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Roof Replacement | $8,000 – $20,000 |
Do I need a full renovation or can I phase it in Portola Valley?
Phasing works if your home already meets WUI requirements; otherwise, the town may require exterior fire-hardening before interior permits are issued. We can phase projects to match Portola Valley’s permitting calendar. Call (855) 473-5620 to talk through sequencing.
Will Portola Valley’s fire code add cost to my renovation?
Yes – ignition-resistant siding, dual-pane tempered glazing, and fire-rated vents add roughly 10 – 15% over standard materials, but they’re non-negotiable in Portola Valley. Call (855) 473-5620 for a written line-item estimate.
Brands We Service in Portola Valley
We’re authorized to work with 50+ named brands across every trade, including Tamko roofing, Boral siding, and PGT impact windows. Parts and materials are stocked through our supplier network for fast turnaround on Portola Valley jobs. See our brands for the full roster.
See the difference
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AfterPricing for Remodeling Company in Portola Valley, CA
| Service | Typical range in Portola Valley |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Roof Replacement | $8,000 – $20,000 |
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Paver Driveway Installation | $7,000 – $18,000 |
| Vinyl Fence Installation | $3,500 – $9,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Home Addition | $45,000 – $130,000 |
| Countertop Installation | $2,000 – $6,500 |
What pushes prices up in Portola Valley is almost always the site: steep slopes mean more foundation work and retaining walls, and WUI code compliance adds material cost on every exterior surface. We provide fixed pricing with no change orders, and you’ll get a written line-item quote before any work starts.
Neighborhoods We Serve in Portola Valley
We work throughout the town of Portola Valley’s 94028 ZIP code, from the flatlands near Town Center up into the hillside lots that back onto Windy Hill and Coal Mine Ridge. Typical response time for estimates is 1 – 2 business days across the area.
- Central Portola Valley (near Town Center)
- Westridge
- Los Trancos Woods
- Blue Oaks
- Ladera border area
Service Area – Cities Near Portola Valley
We also serve nearby Peninsula communities including Ladera, CA, Stanford, CA, West Menlo Park, CA, and Los Altos Hills, CA. Each town has its own permit process and fire-code quirks, and we handle them all.
Serving Portola Valley, CA — Our Local Coverage Area
We’re based in the Portola Valley 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 Portola Valley
Permitting is the longest lead time in Portola Valley – the town’s building department reviews WUI and geotechnical details carefully, so plan for 4 – 8 weeks on permits before construction starts. We handle all submittals and revisions. Call (855) 473-5620 to discuss your timeline.
Yes. We prepare submittal packages for architectural review committees and work with the town’s planning department on setbacks, height limits, and rural character requirements. We’ve managed this process since 2015.
Yes, many Portola Valley lots are on septic and well rather than municipal utilities, and we coordinate with licensed septic and well contractors when a renovation touches those systems. We factor site constraints into the estimate upfront.
If you’re planning a remodel or renovation in Portola Valley, call (855) 473-5620 to schedule a free estimate. One contractor, every phase – from the roof down to the pavers.
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 Portola Valley Customers Say
"He was upfront about a soil issue that added cost early rather than absorbing it and surprising us at the end."
— Latoya Coleman"Every inspection passed first time. The building department clearly knows him and that made the whole process easier."
— Rosa Hernandez"Quality construction and a professional operation. Communication was strongest at the site meetings, and slower by email in between."
— Katie Bennett