General Contractor in Sunnyvale, CA | San Bernardino Contractors

General Contractor in Sunnyvale — Free Estimate, One Written Price

Free on-site estimate and a written, line-item quote before any work begins. One contract, one crew, one accountable point of contact. Licensed, insured, permits handled.

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Kitchen remodelingKitchen remodeling
Bathroom remodelingBathroom remodeling
Home additions & ADUHome additions & ADU
RoofingRoofing
Windows & doorsWindows & doors
Driveway & paversDriveway & pavers
FenceFence
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Fast, Reliable General Contractor Across Sunnyvale

If you’re planning a remodel, addition, or ADU in Sunnyvale, you need a general contractor who knows this city’s zoning maps before the first estimate hits paper. A General Contractor who checks Sunnyvale’s single-story overlay zones, floor-area-ratio limits, and county-versus-city permitting realities will save you from redesign fees and permit rejections. We’re San Bernardino Contractors, led by Ruben Castillo, and we manage every phase of the job from the roof down to the pavers. Call (855) 473-5620 to schedule a free estimate and get a line-item scope in writing.

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Why San Bernardino Contractors Is Sunnyvale’s Preferred General Contractor Company

Sunnyvale homeowners deal with a specific set of problems that a contractor from San Jose or Mountain View might not recognize. The 1950s and 60s ranch homes in 94086 and 94087 carry aging galvanized plumbing, knob-and-tube wiring, and foundations that predate modern seismic codes. We scope for those before we quote. When we walk a Sunnyvale property, we check the city’s zoning map first, because a second-story addition on a single-story overlay lot changes everything about the project’s feasibility and cost.

Ruben Castillo built this company to end the subcontractor shuffle. One contractor, every phase. That means when we open a wall in a 1960s Eichler-era home and find corroded copper, we handle the repipe, the shear-wall retrofit, and the finish work without you calling three different shops. Sunnyvale homeowners tell us that single-point accountability is the reason they don’t juggle a roofer, a cabinet crew, and a tile sub on the same project.

We’re licensed, insured, and bonded. Estimates are free and written. Ask us for references from Sunnyvale jobs and we’ll show you addresses in 94087 and 94085 where we’ve pulled permits and passed final inspection.

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Styles & brands we work with

Kitchen remodeling
Kitchen remodeling
Bathroom remodeling
Bathroom remodeling
Home additions & ADU
Home additions & ADU
Roofing
Roofing
Windows & doors
Windows & doors
Driveway & pavers
Driveway & pavers
Fence
Fence

General Contractor Services in Sunnyvale

General Contractor Services in Sunnyvale cover the full interior scope: kitchens, bathrooms, whole-home remodels, room additions, basement finishing, and deck construction. A kitchen remodel in Sunnyvale runs $14,000 to $45,000. A small bathroom remodel starts around $9,000, and a full bath overhaul ranges $9,000 to $28,000. Walk-in showers run $4,500 to $12,000. Those figures include our written line-item scope, but the final number moves based on what we find behind the walls.

Kitchen and Bath Remodels

You pick the brand, we handle the build. Homeowners in Sunnyvale specify KraftMaid or Wellborn cabinetry, Cambria or Silestone quartz, and Kohler or Grohe fixtures. We quote the allowance up front so you know exactly what the finish level costs before we cut anything.

Kitchen and Bath Remodels

Whole Home and Additions

A whole-home remodel in a 1950s ranch often means rewiring, repiping, and structural upgrades hidden behind the drywall. A home addition in Sunnyvale runs $45,000 to $130,000. We pull county permits when the property sits on unincorporated land near 94085, and we verify the single-story overlay before we draw anything.

Whole Home and Additions
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What happens when you call

  1. 1
    A real person answersNo phone trees — you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Construction Company in Sunnyvale

As a Construction Company working across Sunnyvale, we handle exterior systems as often as interiors. Roof replacement in Sunnyvale runs $8,000 to $20,000, with GAF and CertainTeed systems among the most requested. Window replacement ranges $4,500 to $15,000, and impact windows from PGT or CGI add $8,000 to $25,000 depending on the opening count. Vinyl fence installation runs $3,500 to $9,000, and paver patios from Belgard or Techo-Bloc range $3,500 to $11,000.

Roofing and Exterior Systems

Sunnyvale’s wet winters concentrate roof and drainage problems. We inspect valleys, flashings, and underlayment before quoting a replacement. A roof repair runs $400 to $1,800. We specify GAF-certified roofing because the warranty documentation protects you if a shingle fails five years from now.

Driveways and Hardscaping

Paver driveway installation in Sunnyvale runs $7,000 to $18,000. Concrete driveways range $4,500 to $12,000. On open acreage lots near 94085, we scope grading and drainage swales before we quote because winter runoff determines whether the driveway holds or heaves.

Trusted Brands We Service in Sunnyvale

We’re authorized to work with 50-plus named brands across cabinetry, countertops, plumbing, roofing, windows, fencing, and hardscaping. That means a Sunnyvale homeowner can specify a Grohe kitchen faucet, a CertainTeed roof, and GAF-certified shingles on the same project without us pushing a substitution. We stock common parts locally for Sunnyvale customers, and when a branded component is backordered, we tell you the lead time in writing before you sign. You pick the brand, we handle the build.

Before & after

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Recent Project
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Full Restoration
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Complete Upgrade

Common General Contractor Problems We See in Sunnyvale Homes

  • Single-story overlay surprises on 94087 ranch lots. A second-story addition that looks simple on paper can trigger design review, neighbor-privacy review, and floor-area-ratio limits. We check Sunnyvale’s zoning map before we scope, not after you’ve paid a designer.
  • Aging galvanized plumbing and knob-and-tube wiring. Most 1950s and 60s tract homes in 94086 and 94087 still carry original plumbing and electrical. A kitchen or bath remodel almost always surfaces a repipe or rewire that wasn’t in the first quote from a less thorough contractor.
  • County-versus-city permitting confusion on acreage. Properties near 94085 or unincorporated pockets of Sunnyvale may require county permits for septic setbacks and well clearances, not city permits. We verify jurisdiction before the first estimate.
  • Winter drainage failures on open lots. Sunnyvale’s dry summers hide drainage problems until December rain. We scope swales, downspout extensions, and foundation waterproofing on every exterior project because the repair is cheaper than the water damage.

Pricing for General Contractor in Sunnyvale, CA

Here are the line-item ranges we quote most often in Sunnyvale. These are not guesses. They reflect the labor, permit, and material realities of this market.

Project Sunnyvale Price Range
ADU Construction $90,000 – $220,000
Home Addition $45,000 – $130,000
Garage Conversion $30,000 – $80,000
Kitchen Remodel $14,000 – $45,000
Bathroom Remodel $9,000 – $28,000
Roof Replacement $8,000 – $20,000

What moves the number in Sunnyvale? Zoning review on single-story overlays. Seismic shear-wall requirements on older homes. Septic and well setbacks on acreage. We scope these before we quote so the number you sign is the number you pay. Call (855) 473-5620 for a free estimate.

We Also Serve Cities Near Sunnyvale

Our General Contractor in Sunnyvale team works across the South Bay. We serve Mountain View, Santa Clara, Loyola, and Cupertino with the same written-scope process and brand-specific material access.

Serving Sunnyvale, CA — Our Local Coverage Area

We’re based in the Sunnyvale 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 General Contractor in Sunnyvale

Why Sunnyvale Chooses San Bernardino Contractors

We set the standard for general contractor in Sunnyvale.

No Change-Order Surprises

The written quote you sign is the price you pay. Anything we find mid-job gets priced and approved by you in writing before we touch it.

Licensed & Insured

Fully certified technicians who meet all local and state licensing requirements.

Upfront Pricing

No hidden fees, no surprises. You approve the price before any work begins.

Guaranteed Work

Every repair and installation is backed by our workmanship warranty and satisfaction guarantee.

How It Works in Sunnyvale

Getting your general contractor handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your general contractor needs and we provide an upfront, transparent quote — no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Sunnyvale — typically within 30–60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

What happens when you call

  1. 1
    A real person answersNo phone trees — talk to a local general contractor pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What Sunnyvale Customers Say

Trusted by homeowners across Sunnyvale and surrounding areas.

★★★★★

"Framing crew was meticulous and the walls are straight everywhere. Drywall goes on a lot better when the framing is right."

Angela Kim · Verified customer
★★★★★

"He was upfront about a soil issue that added cost early rather than absorbing it and surprising us at the end."

Latoya Coleman · Verified customer
★★★★★

"Every inspection passed first time. The building department clearly knows him and that made the whole process easier."

Rosa Hernandez · Verified customer

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