







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Larkspur
If you’re looking for a General Contractor in Larkspur who puts the price in writing before any work begins, that’s us. Mason Remodeling has served Marin County homeowners since 2004, and our crews know Larkspur’s hillside lots, older housing stock, and permit process like the back of their hand. A kitchen remodel here typically runs $14,000 – $45,000, a bathroom remodel $9,000 – $28,000, and a home addition $45,000 – $130,000. Call (803) 680-2547 for a written estimate, or keep reading to understand what a Larkspur job actually involves start to finish.
Why Mason Remodeling Is Larkspur’s Preferred General Contractor Company

We’ve walked enough Larkspur Home Remodeling job sites to know what the plans don’t always show you. Because the 94904 hillside lots often sit on expansive clay and fill, a general contractor must verify engineered drawings and geotech notes before framing or the inspection sign-off on retaining/foundation work can fail. That’s not a sales pitch. It’s the difference between a permit that closes and one that drags into month two.
Our General Contractor team operates under what we call the Threshold Standard. Every crew member is background-checked, identity-verified, and introduced to you by name and photo before they ever arrive at your door. You’ll know who is coming, what they look like, and that they’ll be wearing a clean uniform with a photo ID badge. For Larkspur households with young children, older adults, or anyone home alone during the workday, that’s not a formality. It’s the whole point.
We cover every project with a written guarantee, plain and simple. The terms state exactly what’s covered and for how long: 365 days from the completion date. If something isn’t right within that year, we return and make it right at no cost to you. Our General Contractor in Larkspur reviews from local homeowners consistently mention the same three things: the price didn’t move, the crew was on time, and the warranty was real.
Styles & brands we work with







Licensed General Contractor in Larkspur
A Licensed General Contractor in Larkspur handles the structural, permitting, and sequencing work that turns a remodel idea into a finished room you can walk through. That means pulling City of Larkspur permits, scheduling inspections, managing subs, ordering materials that don’t hold up the job, and keeping you informed when something changes. A kitchen remodel in Larkspur runs $14,000 – $45,000, and a bathroom remodel $9,000 – $28,000, depending on layout, finishes, and what’s behind the walls.
Permits and the Larkspur Approval Path
Larkspur pulls from the Marin County permit streamline where some scope falls under a quick review, but hillside lots often trigger a geotech or structural letter requirement. We handle that paperwork before demolition starts. Our written estimate includes a permit line item, and our crews pull and close the permits. No homeowner gets left standing at the counter trying to explain a retaining wall to a plan checker.
Fixed Pricing, Written Before Work Starts
We deliver a written price on every Larkspur project, every time. That means a line-item breakdown of labor, materials, allowances, and permit fees before a tool is unpacked. You will never get a verbal estimate that grows by the time the final invoice arrives. If a surprise appears mid-job, there’s a signed change order with its cost before we touch it.
Residential General Contractor in Larkspur

A Residential General Contractor in Larkspur manages the single-family scope: kitchens, baths, additions, ADUs, decks, and whole-home remodels. The difference here is that Larkspur’s older 1940s – 1970s homes often hide conditions nobody planned for. A 1962 rancher in the flats can open up to reveal single-layer framing or a subfloor that’s too thin for tile. Our job is to handle those findings without drama, with a change-order process that’s written and signed before any extra work begins.
Kitchens and Baths with Real Allowances
On a Larkspur kitchen, we set allowances for cabinetry, countertops, and fixtures in writing. That means you know up front what a KraftMaid or Wellborn cabinet line costs, what Cambria or Silestone runs per square foot, and where a Kohler fixture lands on the budget. No vague “allowance” that blows past by $8,000 when the slab selection happens. You pick from specification-grade products; the pricing was already clear.
Additions and ADUs on Hillside Lots
An ADU in Larkspur runs $90,000 – $220,000, and a home addition $45,000 – $130,000. On a hillside lot, the geotech review and any retaining work are part of that number. We don’t bid those jobs without reading the engineer’s notes first. That’s how a Larkspur ADU gets its final inspection signed rather than stalling on a soils correction.
Trusted Brands We Service in Larkspur
We spec and install the brands Larkspur homeowners actually choose: KraftMaid and Wellborn for cabinetry, Cambria and Silestone for surfaces, Kohler and Moen for fixtures, and GAF or CertainTeed for roofing. Our material partnerships mean we can order locally and keep lead times predictable, which matters when a kitchen punch list waits on one cabinet door. The factory-direct relationship also gives you product warranties that are backed from the manufacturer’s side, not a third-party reseller’s. We also work where homeowners have explored panelized options like Abodu or Dvele and decided a traditionally framed remodel fits their budget better.
See the difference
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AfterCommon General Contractor Problems We See in Larkspur Homes
- Bids without a geotech or structural review on hillside lots. We’ve seen Larkspur jobs where a contractor priced the framing but skipped the soils letter, and the homeowner paid for a retaining wall after the permit review flagged it. Our estimates include the geotech review line when the lot calls for it.
- Vague kitchen or bathroom allowances. A 94904 kitchen quote with “allowance for countertops” in it sounds fine until the homeowner selects Caesarstone and the number jumps. We write real allowance numbers, tied to named product lines, before you sign.
- No draw schedule or change-order process in writing. Mid-remodel surprises happen, and when there’s no signed mechanism for pricing them, the job stalls and the schedule blows. We run every Larkspur project on a written draw schedule and a change-order process that stays signed before hammering.
- Crews that aren’t who the phone call suggested. Homeowners here are careful about who walks in. We send the technician’s name and photo before arrival. The person at your door wears a marked uniform and shows a photo ID badge. That’s the Threshold Standard on every Larkspur job.
Pricing for General Contractor in Larkspur, CA
Here’s what we charge for the most common Larkspur projects. These ranges are real and market-calibrated for Marin County work in 2026.
| Project | 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 |
What moves the price on a Larkspur job? Hillside lot conditions and geotech requirements, the age and framing quality of your home, the cabinet and slab lines you select within named allowances, and whether the scope requires retaining or foundation work. We give you a written price before work starts, and that number doesn’t change unless you approve a signed change order. Call (803) 680-2547 to schedule your free estimate.
We Also Serve Cities Near Larkspur
Our crews work regularly across Kentfield, Corte Madera, San Rafael, and Mill Valley. The permit paths differ slightly, but the pricing model, the written guarantee, and the crew-verification standard stay the same. If you’re just outside Larkspur and wonder whether we cover your street, call us. Most of our Marin work sits within a 20-minute drive of downtown Larkspur.
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
We handle the City of Larkspur building permit, any structural or electrical/plumbing sub-permits, and the inspection scheduling from rough-in through final sign-off. For 94904 homes on hillside lots, a geotech or structural review is sometimes required before framing, and we include that in the written estimate rather than discovering it later. Call (803) 680-2547 and we can look up your lot’s specific permit triggers.
We price a Larkspur bathroom remodel at $9,000 – $28,000, and the written estimate includes a contingency clause tied to a signed change-order process, not an open-ended “cost plus.” If we open a wall and find rotted subfloor or a vent stack that must move, you get a written price for that repair before we proceed. The number doesn’t grow on the final bill; it gets signed for in the middle of the job.
Yes. 94904 hillside lots often sit on expansive clay and fill, so additions and ADUs in Larkspur typically need a geotech letter and sometimes a retaining or caisson correction before framing. We read those engineer notes before bidding, and our ADU prices of $90,000 – $220,000 already account for the lot conditions. A contractor who skips that review will submit a permit that fails or stalls. Call (803) 680-2547 for a number that’s honest for your hillside parcel.
A Larkspur kitchen remodel typically runs 4 to 8 weeks from demolition to final inspection; a bath runs 2 to 5 weeks; an addition or ADU runs 4 to 8 months including permit review and geotech sign-offs. This is planned construction work, not a same-day service. Our schedule is written into the contract, and we give you a draw schedule that matches milestones so you see progress against payment. Call (803) 680-2547 for a calendar for your specific scope.
Every change order is written, priced, and signed by you before we buy material or send a crew. On a 1960s split-level on Magnolia Avenue we opened a wall between the kitchen and dining room and found the header wasn’t load-bearing as drawn, so we paused, added a signed change order for an engineered beam and revised permits, and still hit our rough-in date. The finished scope included KraftMaid cabinetry, a Silestone counter, and a punch list closed out in one visit. That’s how change orders work on every Larkspur job we run.
Written by Isaac Pruett, Owner at Mason Remodeling, serving Larkspur since 2004.










