Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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AfterFast, Reliable General Contractor Across Larkspur
Opening the walls of an older Larkspur home tends to reveal the same handful of things: cloth-wrapped wiring, framing that’s been wet longer than anyone knew, waterproofing that gave up years ago, and code upgrades the permit triggers the moment the drywall comes down. We plan for that before the first tool comes off the truck. Penhallow Remodeling serves Larkspur homeowners with written pricing, a written 365-day guarantee, and a General Contractor team that knows Marin County construction conditions from the canyon floor up. Call (936) 259-2607 for a free estimate, and we’ll walk the project with you before anything gets priced.
Why Penhallow Remodeling Is Larkspur’s Preferred General Contractor Company
You’ve probably already had a contractor tell you one number and then hand you another after demo day. That’s the exact thing we designed our process around. Every Larkspur project gets a written price before work starts, and the number on day one is the number on the invoice. It’s not a verbal ballpark, not an estimate range. It’s a written commitment, backed by our 365-Day Done Right Promise: if something fails inside the guarantee period, we come back and fix it at no charge.
Trevor Nash leads our team, and he’s the one who set the standard we work to. Background-checked, uniformed technicians on every job, so you know exactly who’s walking through your door. A live person answers the phone 24/7, not a voicemail maze. And we stock materials from recognized trade brands: Cambria and Caesarstone countertops, Kohler and Moen fixtures, James Hardie siding. The products behind the guarantee are as solid as the promise itself.
Construction Company in Larkspur
When a Larkspur homeowner calls us for a General Contractor in Larkspur job, what they’re usually really asking for is someone who understands what this town’s houses actually are. Early-1900s Craftsman bungalows near downtown. Mid-century hillside contemporaries perched over steep canyon lots. Victorian-era structures with framing that predates modern building codes by decades. Our Construction Company work in Larkspur starts with an inspection-first approach: we look at what’s behind the walls before we ever put a number on the work, because what’s behind those walls is where the real cost lives.
Pre-Priced Change Orders
Older Larkspur homes hide things. Cloth wiring. Rotted sill plates. Subfloor framing that’s been wicking moisture from the canyon floor for thirty years. When we find these, we don’t hand you a surprise invoice. We write each repair into the contract as a priced allowance, and you approve every change order in writing before we touch it. That’s the Kingswell Way, the standard our family of companies has operated under since 2004.
Permit-Triggered Code Upgrades
A Larkspur permit isn’t paperwork. It’s a third-party inspection sign-off that triggers ignition-resistant materials in Cal Fire Very High Fire Hazard Severity Zones, tree protection requirements, and code upgrades once walls are open. We build those triggers into the initial scope, not the change order queue. Kitchen Remodeling in Larkspur typically runs $14,000 – $45,000 depending on layout, cabinet line, and countertop material. Home additions run $45,000 – $130,000, and ADU construction runs $90,000 – $220,000.
Remodeling Contractor in Larkspur
Remodeling Contractor work in Larkspur means something different than it does ten minutes away in Corte Madera. The homes here sit on post-and-pier or cripple-wall foundations that are seismically vulnerable and continuously exposed to moisture rising off the canyon floor. Coastal fog channels through the canyon corridors and keeps Baltimore Canyon homes significantly wetter than the regional average, which means wood decay in subfloor framing, sill plates, and siding shows up faster and runs deeper. Our remodeling contractor team plans around that reality from the first site visit.
Waterproofing and Framing Before Finish Work
The sequence matters. If we don’t repair the failed waterproofing at the shower before we set tile, that tile is coming back out inside a year. If we don’t replace the rotted sill plate before we hang new cabinets, the cabinets are sitting on compromised structure. Bathroom remodels in Larkspur run $9,000 – $28,000, and small bathroom remodels run $5,000 – $12,000. Those ranges assume the framing and waterproofing get fixed properly, not ignored and covered over.
Written Price Before Any Work Starts
The number on day one is the number on the invoice. That’s not a slogan we put on a truck. It’s the operating rule. Every Larkspur homeowner receives a written price before any work starts, written by Trevor Nash’s team, and backed by the 365-Day Done Right Promise in writing on every project. If something fails inside the guarantee period, we return and fix it at no charge. No service call, no re-inspection fee.
Trusted Brands We Service in Larkspur
We install and service materials from brands you probably already know, because the products behind the guarantee matter as much as the guarantee itself. In Larkspur, that frequently means Cambria quartz countertops, which carry their own lifetime warranty alongside ours, James Hardie siding for canyon homes where fire-resistance and moisture tolerance are both non-negotiable, and Kohler or Moen fixtures in bathrooms and kitchens. For homeowners exploring prefab or panelized options, we’ve worked alongside units from Dvele and Cover, and we know how to integrate those systems into hillside lots where crane access doesn’t exist. We stock local parts for Larkspur customers and coordinate fast turnaround from our San Francisco Bay Area office, so you’re not waiting on a shipment from across the country when a fixture fails.
Common General Contractor Problems We See in Larkspur Homes
- Cloth-wrapped and outdated wiring. Homes built before the 1960s in Larkspur’s historic core frequently still carry cloth-insulated wiring. Opening a wall for a kitchen remodel often triggers an electrical rough-in upgrade, and we write that as a priced allowance rather than a surprise.
- Rotted sill plates and subfloor framing. Baltimore Canyon’s persistent moisture means the bottom plate of a wall is often compromised before the rest of the structure shows any sign of it. We inspect the framing before we quote, because replacing a sill plate is a structural repair, not a finish item.
- Failed shower waterproofing. We routinely find shower pans and wall waterproofing that failed years ago and were covered over with new tile instead of repaired. The tile looks fine for eighteen months, then the grout cracks and the subfloor underneath is gone.
- Single-lane canyon access and staging constraints. In Baltimore Canyon, the only vehicle access to many homes is a road too narrow and steep for a standard dump truck or concrete mixer. Materials get staged at the canyon mouth and hand-carried or shuttled uphill, which adds a hidden labor condition that runs about 15 – 20% above a flat-lot job in Corte Madera.
Pricing for General Contractor in Larkspur, CA
A typical remodel in Larkspur runs higher than a comparable flat-lot job in Corte Madera or San Rafael, and the canyon access is the reason. Staging materials at the canyon mouth, hand-carrying them uphill, and working around protected redwoods and ignition-resistant material requirements all add labor hours to the same scope of work elsewhere. Here are the market-calibrated ranges we quote for Larkspur homeowners:
| Project | Larkspur Price Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Small Kitchen Remodel | $9,000 – $20,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Window Replacement | $4,500 – $15,000 |
What moves a project within those ranges is mostly the condition of what’s behind the walls, the cabinet line and countertop material you choose, and whether the job is on a flat lot or a canyon hillside. We’ll walk the home with you, inspect what’s accessible, and give you a written number before any work starts. Call (936) 259-2607 to schedule your free estimate, and we’ll explain exactly what’s driving the cost on your specific home.
We Also Serve Cities Near Larkspur
Our General Contractor team handles projects across Marin County, so if you’re in Kentfield, Corte Madera, San Rafael, or Mill Valley, we can schedule the same written-price, written-guarantee process for your remodel. Canyon conditions differ, but the standard doesn’t.
Serving Larkspur, CA - Our Local Coverage Area
We’re based in the Larkspur 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 Larkspur
Cloth-wrapped wiring, rotted sill plates, subfloor framing that’s been damp for decades, and failed shower waterproofing are the four most common things we find. Occasionally we also uncover old knob-and-tube wiring or framing that was notched improperly during a previous remodel decades ago. The cost of fixing these things is real, which is why we inspect first, price second, and write every repair into the contract as a pre-approved allowance before the wall comes open. Call (936) 259-2607 for a free estimate on your Larkspur home.
The short answer is inspection before pricing, and priced allowances written into the contract. We don’t bid from a flat-lot template. Before we quote a Larkspur remodel, we walk the home, inspect the crawlspace and the accessible framing, and build the old-house realities into the number. Then any surprise that still shows up gets priced and approved in writing before we touch it, which means the change order is a decision, not a discovery. Estimates are free at (936) 259-2607.
The canyon’s single-lane access is the biggest driver. When a dump truck can’t reach the house, materials get staged at the canyon mouth and hand-carried or shuttled uphill, which adds 15 – 20% in labor to the same scope of work on a flat lot. Add Cal Fire Very High Fire Hazard Severity Zone ignition-resistant material requirements and protected-redwood tree ordinances, and both the permit set and the site logistics change before a single wall is opened. It’s not a markup; it’s the actual cost of building in that location. Call (936) 259-2607 for a written quote.
Yes. A permit in Larkspur triggers third-party inspections, and those inspections enforce current code. In Baltimore Canyon’s Cal Fire Very High Fire Hazard Severity Zone, that means ignition-resistant siding, windows, and roofing materials are required by the time the work is signed off. Tree protection ordinances also constrain where we can stage materials and how we route equipment. We build these requirements into the initial scope and price, so the permit isn’t a surprise at the end. Call (936) 259-2607 to talk through what your specific project would trigger.
Larkspur’s wet season runs roughly November through April, and canyon roads get slick and narrow during heavy rains, so we typically sequence exterior work, foundation access, and any excavation for the dry months and keep interior rough-in, finish carpentry, and tile setting flexible enough to move inside when the rains come. Draw schedules follow the same logic: we front-load the material allowances and the structural repairs, then draw on finish work as inspections pass. If you want to see what a phased schedule looks like for your specific Larkspur home, call (936) 259-2607.
Written by Trevor Nash, Owner at Penhallow Remodeling, serving Larkspur under the Kingswell standard since 2004.