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 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.
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.
Styles & brands we work with
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.
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.
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.
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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.
See the difference
Before
After
Before
After
Before
AfterCommon 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
If your property sits in an unincorporated pocket near 94085, you may need county permits for septic setbacks and well clearances rather than city permits. Sunnyvale’s ADU ordinance applies inside city limits, but county jurisdiction kicks in on the edges. We verify the jurisdiction before we quote. Call (855) 473-5620 and we’ll check your parcel.
A single-story overlay zone in 94087 can require design review, neighbor-privacy analysis, and floor-area-ratio verification before Sunnyvale approves a second-story addition. We check the city’s zoning map before we scope the project so you don’t pay for drawings that fail review.
We scope grading and drainage, septic and well clearances, material haul access for equipment, and the specific ADU ordinance requirements for your plat. A detached ADU in Sunnyvale runs $90,000 to $220,000 depending on utility runs and foundation conditions. Get the full line-item scope before you sign. Estimates are free.
We schedule exterior work for Sunnyvale’s dry summer months, but we always scope drainage swales, downspout routing, and foundation waterproofing because December rain exposes every grading mistake. A drainage swale is cheaper than a flooded crawlspace. Call (855) 473-5620 to schedule a site walk before winter.
Every change order is a dated, signed document that shows the old scope, the new scope, and the exact dollar difference before work continues. Allowances are quoted as a range up front, and we document every selection in writing. No verbal changes, ever. That’s how we protect Sunnyvale homeowners from surprise cost overruns.
Written by Ruben Castillo, Owner at San Bernardino Contractors, serving Sunnyvale with general contracting, remodels, and ADU construction.