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 Gilroy
Hiring a general contractor in Gilroy usually means one of two things: you’re either fixing surprises an older home has been hiding, or you’re building something new on a lot that comes with real geologic and wildfire-adjacent constraints. We handle both. San Bernardino Contractors runs full-scope residential projects in Gilroy’s 95020 and 95021 ZIP codes, from kitchen and bath remodels inside to roofing, windows, fencing, and ADUs outside. Ruben Castillo leads our crews, and when you call (855) 473-5620, you talk to the team that actually manages your build, not a call center. We quote Gilroy projects with real allowances and written change orders, because homes here rarely open up clean.
Why San Bernardino Contractors Is Gilroy’s Preferred General Contractor Company
Gilroy homeowners use us because we’re honest about what a remodel will actually uncover, and there’s no ambiguity in what happens next. We know the difference between a subdivision lot east of 101 and a ranch-style property off Leavesley Road that sits closer to the foothills. That’s not trivia. Those foothill lots carry wildfire-defensible-space requirements and stricter structural bracing standards than flat-valley builds a mile away. A contractor who treats them the same is setting you up for a failed inspection.
Our Gilroy customers tend to be research-minded people who’ve been burned before or watched a neighbor get stuck mid-project. They ask about allowances up front. They want to know who’s fitting the Cambria countertops and who’s pulling the GAF roofing passes. We answer with names and specifics, not vague assurances. You pick the brand, we handle the build.
Styles & brands we work with
Hire a General Contractor in Gilroy
Hire a General Contractor in Gilroy when your project touches more than one trade, because the alternative is you playing phone-tag between a roofer, a cabinet shop, and a tile sub. One contractor, every phase. We run kitchens from tear-out through KraftMaid or Wellborn cabinet install. We handle bath remodels where a tub-to-shower conversion means new drain lines, new waterproofing, and a Kohler or Grohe valve upgrade. And we do whole-home work: room additions, garage conversions, decks, and full exterior scopes from CertainTeed roofing to James Hardie siding. On any Gilroy project, our first step is a walk-through inspection, because what’s behind the walls determines whether your $14,000 – $45,000 kitchen remodel stays on budget or finds a $6,000 problem the day after demo.
Kitchen and Bath Work
A kitchen remodel in Gilroy typically runs $14,000 – $45,000 depending on cabinet line, countertop material, and whether we’re moving plumbing. A bathroom remodel runs $9,000 – $28,000. We write allowances for KraftMaid, Wellborn, Cambria, Silestone, and Kohler products at the start, so you’re not surprised by overages when you pick the product you actually want.
Additions and ADUs
Adding square footage in Gilroy means tying into existing foundations and getting the seismic detailing right on fault-adjacent soil. Home additions run $45,000 – $130,000. ADUs run $90,000 – $220,000, and we work with prefab builders like Abodu and Dvele when you want a faster path through permits. We handle the site work, utilities, foundation, and final inspection sign-off.
General Contractor Services in Gilroy
General Contractor Services in Gilroy cover the exterior as much as the interior. Roof replacement runs $8,000 – $20,000, and on foothill-adjacent properties that means Class A fire-rated material choices matter as much as the shingle color. We install GAF, CertainTeed, and Owens Corning systems, and we’re clear about vent detailing and ember-resistant components in WUI zones. Window replacement runs $4,500 – $15,000. Vinyl fence installation runs $3,500 – $9,000, and aluminum runs $4,000 – $10,000. Paver patio work runs $3,500 – $11,000, and concrete driveways run $4,500 – $12,000. From the roof down to the pavers, the same crew that hangs your drywall is accountable for the whole scope. No subcontractor shuffle.
Exterior Systems
Gilroy summers are hot and dry, so we schedule roof and concrete work around cure timing. An afternoon pour on a mid-July day can flash-set and crack. Our crews start concrete early. Roofing gets sequenced so materials don’t bake on the deck before install.
Whole-Home Accountability
When one GC owns the entire project, a framing question on the addition doesn’t become a blame game between your roofer and your cabinet installer. Ruben Castillo runs the schedule, the change orders, and the inspection walk-throughs. You get one point of contact for every trade.
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.
Trusted Brands We Service in Gilroy
We’re authorized to work with 50+ named product lines across every trade category, and that matters more in Gilroy than most people realize. Foothill lots may require ignition-resistant siding and Class A roofing assemblies, and you want a contractor who knows which CertainTeed and GAF products meet those specs rather than one who installs whatever the supply house has in stock. Inside, you choose your finish level: builder-grade through premium. KraftMaid and Wellborn cabinets, Cambria and Silestone countertops, Kohler and Grohe fixtures, Sterling and Toto plumbing. We order what you pick, and we stand behind the install. Parts and materials for active Gilroy jobs stage out of our yard, so when a cabinet box arrives damaged or a fixture is on backorder, the fix doesn’t stall your job for three weeks.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Gilroy Homes
- Outdated wiring behind kitchen walls. Many ranch and farmhouse homes in Gilroy’s older downtown core still carry knob-and-tube or ungrounded circuits. A kitchen remodel that opens those walls triggers an electrical upgrade, and we identify that during the pre-inspection, not after demo.
- Undersized framing in load-bearing walls. Removing a wall to open a kitchen or add a room often reveals headers that were never sized for the span. We price engineered framing fixes into our allowances so the change order is a written number, not a verbal surprise.
- WUI and seismic detail mismatches on foothill lots. Homes on Gilroy’s western edge face defensible-space and bracing requirements that flat-valley homes don’t. A contractor who misses ember-resistant vent or anchor bolt details fails inspection and triggers rework.
- Rapid concrete cure in summer heat. July and August afternoon pours crack on Gilroy’s hot inland days. We pour early and monitor cure timing, which is why our driveway and patio work holds up better than work sequenced by coastal crews.
Pricing for General Contractor in Gilroy, CA
Here’s what Gilroy homeowners should expect to pay for the most common scopes we quote. These are market-calibrated ranges for this area, not national averages.
| Project | Gilroy 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 |
| Roof Replacement | $8,000 – $20,000 |
What moves a Gilroy quote is mostly what’s behind the walls and what the lot requires. A foothill home needing WUI-compliant siding, ember-resistant vents, and seismic anchors will cost more than a flat-lot ranch of the same square footage. We write allowances for every finish category so you choose your spend level, and we price surprises in writing before any change order is approved. Call (855) 473-5620 for a free estimate with a full line-item breakdown.
We Also Serve Cities Near Gilroy
Our crews work regularly in Gilroy and the surrounding South Bay communities. If you’re in San Martin, Aromas, Morgan Hill, or San Juan Bautista, we bring the same General Contractor approach: pre-inspection first, allowances in writing, and one accountable crew for the whole job. Call (855) 473-5620 to schedule a walk-through.
Serving Gilroy, CA — Our Local Coverage Area
We’re based in the Gilroy 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 Gilroy
We inspect first and write allowances into your contract for the known risks, then price any actual surprises in writing before we touch them. Most Gilroy remodels hit at least one of three things: knob-and-tube wiring, undersized headers, or failed waterproofing. Our pre-inspection walk spots the first two before demo, and our change orders are written and approved by you before any additional work starts. Call (855) 473-5620 to schedule a pre-inspection walk on your home.
A permit means the work must meet current building code, not the code that applied when your home was built, so opening walls often triggers electrical upgrades, seismic anchors, and WUI requirements on foothill lots. We review the scope with the city requirements during the estimate phase and include known code upgrades in your line-item quote so they’re not a surprise later. Call (855) 473-5620 for a quote that accounts for Gilroy’s code triggers up front.
Yes. Homes on the western foothills fall under wildfire-defensible-space and WUI construction requirements that flat-valley subdivisions a mile away don’t, so the same addition can need ember-resistant vents, Class A roofing, and ignition-resistant siding depending on which side of the valley floor it sits. We price and install those details correctly the first time so your final inspection passes. Call (855) 473-5620 to discuss your specific lot.
We write real allowances for every finish category, including specific brand lines like KraftMaid, Cambria, Kohler, and Grohe, so you know exactly what gets you to the final number. Then we hold the line on change orders: nothing gets approved without a written price and your signature. Call (855) 473-5620 for a free estimate that names the brands and the numbers.
A draw schedule ties payments to completed milestones like demo, rough-in, and final inspection, so you never pay ahead of the work that’s actually finished on your Gilroy project. Each draw releases a defined percentage only after the milestone passes inspection, which protects you on any general contractor job. Call (855) 473-5620 to review a sample draw schedule before you sign anything.
Written by Ruben Castillo, Owner at San Bernardino Contractors, serving Gilroy and the South Bay.