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 San Martin
Hiring a general contractor in San Martin means navigating county permits, well and septic setbacks, and large-lot site access that a city-based crew rarely sees. We’ve built our process around exactly that. Silver Line Contractors runs full-scope residential projects across the 95046 ZIP, from kitchen remodels on older ranch homes to detached ADUs on multi-acre parcels. When you call (833) 400-1314, you get Noel Carvalho and a team that already knows what Santa Clara County planning and fire review will ask for before we pull the first permit.
Why Silver Line Contractors Is San Martin’s Preferred General Contractor Company
San Martin homeowners keep calling us back because we plan for what this specific area throws at a build: unincorporated county jurisdiction, private road access, and older homes that hide decades of well-water plumbing wear. We do not treat a San Martin project like a Morgan Hill or Gilroy tract job. The site conditions are different, and the permit path is different. Our reputation here comes from showing up with a written scope, fixed allowances on cabinets and countertops, and the right material spec for inland valley heat and winter rain.
Response time to San Martin is short. Our primary location in Gilroy puts us minutes from the Llagas Road corridor, Monterey Road, and the ranch parcels east of 101. When a San Martin homeowner calls about a failing roof deck or a barn conversion that needs county review, we can be on-site fast and give you a straight answer about what the job actually requires.
Styles & brands we work with
Construction Company in San Martin
A construction company in San Martin handles the structural and exterior work that keeps a rural property standing: additions, outbuildings, roof replacements, driveway and paver work, and the site coordination that ties it all together. On large-lot parcels, that often means sequencing framing and foundation work around septic system setbacks and well locations, which county inspectors will check. A full home addition in San Martin typically runs $45,000 to $130,000. A roof replacement lands between $8,000 and $20,000, while a metal roof installation ranges from $15,000 to $40,000 depending on pitch, square footage, and fastener spec.
Large-Lot and Outbuilding Work
San Martin construction is dominated by agricultural-adjacent parcels. Barns, shops, detached garages, and equipment storage buildings sit on ground that county fire and planning review carefully. We schedule those reviews into the draw schedule so the job does not stall waiting for a clearance we should have anticipated in week one.
Foundation, Drainage, and Site Access
Winter rains in the south Santa Clara Valley pool along seasonal creek corridors, and our foundation and drainage work accounts for that before concrete is poured. Private road access means material delivery and equipment staging need a plan, not a hope. We coordinate that as part of the contract.
Remodeling Contractor in San Martin
A remodeling contractor in San Martin works inside homes that are often 50 to 70 years old, where original galvanized supply lines, single-pane windows, and outdated electrical panels are common. Kitchen remodels here run $14,000 to $45,000 for a full gut and rebuild, while bathroom remodels range from $9,000 to $28,000. These numbers assume a written scope with allowances for cabinetry and countertops, because the range in San Martin comes from material choices, not vague labor estimates.
Whole-Home and Interior Scope
We open walls on ranch houses and find what decades of well water have done to the plumbing. That discovery changes the job, and our fixed allowance structure means you are not hit with an open-ended ticket when it happens. The upgrade from the cheap inland material spec to what actually lasts here is spelled out before drywall goes back up.
Garage and ADU Conversions
Garage conversions in San Martin run $30,000 to $80,000, and they are one of the most common requests on large-lot properties. Unlike a city permit in Morgan Hill, these conversions go through Santa Clara County, and we handle the county’s requirements for setbacks, insulation values, and fire separation rated assemblies without making you chase the paperwork.
Trusted Brands We Service in San Martin
We spec materials that hold up in inland valley heat cycling and winter rain. On the exterior, that means Therma-Tru entry doors, ViewLux windows, and Barrette or Master Halco fence systems with hot-dip galvanized posts and marine-grade hardware where it counts. For San Martin customers, we keep the local parts pipeline short. If a window sash or fence post needs replacement mid-project, we are not waiting on a distributor three states away. Most of what we install is either supplied by our Gilroy yard or dropped to the San Martin site within days.
See the difference
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After
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After
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AfterCommon General Contractor Problems We See in San Martin Homes
- Builder-grade zinc-plated fasteners on outbuildings and exterior framing. These fail fast in San Martin’s hot dry summers and wet winters. We spec hot-dip galvanized or stainless fasteners on every exterior connection.
- Untreated fence posts and railings. A rural fence line on a large parcel takes full sun and ground moisture year-round. We use pressure-treated or steel posts from Barrette and Master Halco so the fence outlives the warranty, not the other way around.
- Permits treated as an afterthought on county parcels. When a homeowner pulls a barn or ADU permit late, county fire and well/septic review eats the schedule. We file those first and build the draw schedule around them.
- Remodels with no written allowances. Without fixed numbers for cabinetry and countertops, a San Martin kitchen remodel becomes an argument over who pays for the KraftMaid upgrade. We write allowances and change orders before demolition begins.
Pricing for General Contractor in San Martin, CA
San Martin pricing runs slightly different than neighboring Gilroy or Morgan Hill because most projects involve large-lot site work, private road access, and county-level permitting. Here are the line items we quote most often for San Martin homeowners:
| Project Scope | Typical Range in San Martin |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Roof Replacement | $8,000 – $20,000 |
| Metal Roof Installation | $15,000 – $40,000 |
| Window Replacement | $4,500 – $15,000 |
| Paver Driveway Installation | $7,000 – $18,000 |
What shifts a San Martin quote is the spec, not the labor. A roof with standard fasteners costs less than one with hot-dip galvanized fasteners rated for decades of inland valley heat cycling. A paver driveway with unsealed joints fails faster than one with sealed polymeric joints. We quote both versions when asked, and we tell you which one we would put on our own house. Call (833) 400-1314 for a free written estimate with fixed allowances, no vague line items.
We Also Serve Cities Near San Martin
Silver Line Contractors runs jobs across the south Santa Clara Valley. In addition to San Martin, we serve Morgan Hill, Gilroy, Amesti, and Corralitos. If your project sits on the county line or extends across multiple parcels, our General Contractor team handles the full scope under one contract.
Serving San Martin, CA — Our Local Coverage Area
We’re based in the San Martin 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 San Martin
San Martin is unincorporated Santa Clara County, so permits go through the county building department and county fire/planning, not a city building department. We handle that entire path, including coordinating well and septic setbacks on large-lot parcels before a single inspection is scheduled. Call (833) 400-1314 and we will walk you through what your specific parcel requires.
The coastal-spec version costs more because the materials do: hot-dip galvanized or stainless fasteners, marine-grade window and door hardware, sealed paver joints, and pressure-treated or steel fence posts all carry a price premium over the builder-grade inland spec. The inland spec saves you 10 to 15 percent upfront and fails within a decade. We quote both, and we recommend the spec that matches a 50-plus-year time horizon on a San Martin parcel.
We handle everything from septic setback verification and well-line coordination to foundation work, framing, exterior materials, and interior finishes. On large-lot remodels, that means the well system, septic field, private road access, and county fire review all get sequenced into the contract as one scope, not bolted on as change orders when the inspector shows up. Call us to schedule a free walkthrough of your parcel.
Written allowances and a fixed scope of work, agreed to before demolition. We put specific dollar allowances on cabinetry and countertops, name the material specs in the contract, and issue change orders only when you ask for a different material or discover something the wall was hiding. Most San Martin remodels we run finish with one change order, not five.
Yes, and this is one of the most common projects on San Martin’s large-lot and agricultural properties. Detached ADUs run $90,000 to $220,000 depending on size, finishes, and site prep. We work with prefab ADU manufacturers and handle the county permitting, well and septic coordination, and private road access as part of the same contract. Call (833) 400-1314 for a free evaluation of your parcel.
Written by Noel Carvalho, Owner at Silver Line Contractors, serving San Martin and the south Santa Clara Valley.