General Contractor in San Martin - Licensed & Insured, Written Fixed-Price Quotes

Fast, Reliable General Contractor Across San Martin

Hiring a general contractor in San Martin means finding someone who understands that this unincorporated community runs on county rules, not city rules. Every permit, inspection, and variance for your remodel goes through Santa Clara County’s Department of Planning and Development. That changes timelines, paperwork, and how a job gets scheduled. Penhallow Remodeling has worked through that pipeline enough to plan around it from day one. Call (936) 259-2607 and we’ll walk you through what your project actually needs, in writing, before any tools show up.

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Why Penhallow Remodeling Is San Martin’s Preferred General Contractor Company

San Martin homeowners tell us the same thing: they need a contractor who returns calls, shows up when promised, and doesn’t treat a change order like a surprise gift. That’s what we do. Trevor Nash leads every project with the same approach: a written price before work starts, a defined arrival window, and a written guarantee on the finished job. We don’t hand you a verbal ballpark and hope for the best. You get a number you can hold us to.

Our background-checked, uniformed technicians arrive on time. A live person answers the phone 24/7, not a voicemail tree. And our 365-Day Done Right Promise backs every project in writing: if something fails inside the guarantee period, we come back and fix it at no charge. That’s the Kingswell Way, and it’s been the standard since 2004.

Residential General Contractor in San Martin

Residential General Contractor work in San Martin rarely looks like a clean, simple remodel. Most homes here are custom builds from the 1970s through the 1990s sitting on one to ten acres, often alongside horse barns, workshops, and ag buildings. When we open a wall on these properties, we usually find something the original builder buried: outdated wiring, undersized framing, dry-rotted sills, or waterproofing that gave up years ago. That’s the reality of site-built custom homes. There’s no tract-house repeat plan to fall back on. Every job needs its own engineering judgment.

A typical kitchen remodel in San Martin runs $14,000 – $45,000. A full home addition lands between $45,000 and $130,000. But the number that matters is the one we put in writing after we inspect what’s inside the walls, not just what’s on the finish plan. We write allowances for the unknowns into the contract, and any discovery gets priced as a written change order before we touch it. No surprises. Just a signed number.

County Permitting, Handled

Because San Martin is unincorporated, every permit and inspection runs through Santa Clara County’s Department of Planning and Development. It’s a slower pipeline than Morgan Hill or Gilroy, where a city counter handles the same paperwork. We schedule around county inspection sign-off windows from the start. That means no demo before the permit clears, no stalled draw schedule, no framing left open for weeks waiting on an inspector who’s backed up.

What We Inspect Before We Quote

Before we put a price in front of you, we open the areas that matter: load-bearing walls, subfloor condition, electrical rough-in, plumbing runs, and exterior envelope. That inspection is where the real quote comes from. If we find cloth-wrapped wiring or undersized framing, we price the repair as a line item, not a vague “we might need to look at that later.” You’ll know what you’re paying for before the first wall comes down.

Hire a General Contractor in San Martin

When you hire a General Contractor in San Martin, you’re really hiring someone to run interference between you, the county, the engineers, the subs, and the materials. That coordination is the job. It’s not just swinging a hammer. It’s knowing that a room addition on a private well and septic parcel can trigger mandatory setback recalculations from both the wellhead and the leach field. It’s knowing that expansive alluvial clay soils here heave and settle with every wet and dry season, so slab specs need real engineering, not a stock template. It’s knowing which building department actually signs off on your job, and when.

We coordinate all of it. Permits, inspections, scheduling, materials, subs. You get one point of contact, one written price, and one written guarantee. If you’re planning a kitchen remodel, bathroom remodel, room addition, garage conversion, or ADU on your San Martin property, call us. We’ll walk the site, explain the constraints, and hand you a written number.

Written Allowances Protect You

Here’s the trap we see other contractors fall into with San Martin homes: they quote the visible finish plan and never open the walls. Then demo day arrives, and suddenly there’s an electrical revision, a structural fix, a waterproofing failure, and the price balloons. That’s not how we work. Our contract includes written allowances for the conditions these homes routinely hide. If something comes up, it’s priced as a written change order, approved by you, before we proceed.

Engineering for Expansive Clay

The southern Santa Clara Valley floor around San Martin sits on moderately to highly expansive clay soils from the Diablo Range. That soil moves. It swells when wet, shrinks when dry, and it can crack a slab or shift a foundation if the engineering isn’t done right. We treat slab and foundation specification as a site-specific decision, not a default assumption. That’s one of the reasons a written inspection matters before the quote.

Trusted Brands We Service in San Martin

We install materials from recognized trade brands, and we stand behind them. KraftMaid and Wellborn cabinetry. Cambria, Silestone, and Caesarstone countertops. Kohler and Moen fixtures. James Hardie siding. These aren’t generic off-brand products. They carry their own manufacturer warranties, which layer on top of our 365-Day Done Right Promise. We also work with prefab and panelized manufacturers like Abodu, Cover, and Dvele when a San Martin homeowner wants a faster, factory-built path on an ADU or addition. The same written guarantee applies either way.

Common General Contractor Problems We See in San Martin Homes

• Undersized framing behind load-bearing walls. Homes built in the 1970s and 1980s often didn’t account for today’s open-plan layouts. We inspect, spec the correction, and price it before you’re left with a structural headache.
• Cloth-wrapped or outdated wiring. Many San Martin custom builds still have original electrical. A county permit inspection will flag it. We pull the revision and write the upgrade into the change order.
• Failed waterproofing around showers and tubs. Older site-built homes weren’t always detailed correctly. We rebuild with proper cement board substrate (the moisture-resistant layer behind your tile) and waterproofing membranes rated for the job.
• Expansive clay foundation movement. This soil heaves. It’s not a question of if, but how much. We engineer for the seasonal movement rather than treating your slab like it’s sitting on stable ground.

Pricing for General Contractor in San Martin, CA

We Also Serve Cities Near San Martin

Our teams serve San Martin and the surrounding area, including Morgan Hill, Gilroy, Los Gatos, and Campbell. If you’re planning a remodel anywhere in the south Santa Clara Valley, we’re familiar with the local permit offices and the housing stock. Learn more about our General Contractor services, or see what we bring to General Contractor in San Martin specifically.

FAQs About General Contractor in San Martin