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
Why Salt Air Decides Your Sausalito Remodel Budget
A general contractor in Sausalito who specs inland materials is setting you up to pay twice. We see it on nearly every bayside deck, hillside addition, and roof replacement we take over after another contractor’s work fails. Galvanized joist hangers pit and thin out in three fog seasons. Zinc-plated brackets rust through at the flashing line. Pressure-treated deck posts not rated for constant salt spray start checking and splitting within five years. The fix is not exotic. It is just honest: stainless and hot-dip hardware, marine-grade finishes, sealed joints, and a realistic scope that accounts for what the fog and salt actually do to a building at 20 feet above the waterline. You can spec the inland version and save 12 to 18 percent upfront. But those savings disappear the first time a fastener fails, a ledger rots, or a retaining wall shifts and the repair becomes a structural job instead of a trim job.
As a General Contractor serving Sausalito, we price the coastal-spec version of the job from the start, because we know what the microclimate off Richardson Bay and the Golden Gate does to exposed wood, steel, and concrete. Call (855) 473-5620 for an estimate that accounts for it.
Fast, Reliable General Contractor Across Sausalito
If you own a home in Sausalito, you already know the deal. Narrow switchback streets off Bridgeway. A 1960s hillside cottage with a view deck cantilevered over a 30-degree slope. A waterfront unit in the flats where the morning fog sits on your siding until noon. Every one of those buildings shares the same construction reality: salt-laden air, unstable hillside soils, and a dense historic fabric where every permit review takes longer than you’d expect. We work in 94965 and 94966 regularly, from the floating home communities along the water up through the hillside neighborhoods climbing toward the Golden Gate. That means we do not spend the first week of your project discovering what the local marine environment does to a house. We already know.
Call (855) 473-5620 and we’ll walk the property with you.
Styles & brands we work with







Why San Bernardino Contractors Is Sausalito’s Preferred General Contractor Company
Ruben Castillo runs our projects with a simple rule: if a material or detail would not survive 10 years within sight of salt water, we do not spec it. That is not a slogan. It is the difference between a deck rebuild that looks good at handoff and one that still functions a decade later. On a Bridgeway hillside cottage climbing toward the Golden Gate view, our crew tore out a cantilevered view deck whose hot-dip galvanized joist hangers had corroded to pencil-thin from years of salt-laden fog and whose ledger had rotted through at the flashing line. We re-specified stainless structural fasteners, a properly flashed and taped ledger, and marine-grade sealed paver joints at the landing, then crane-lifted the new joist packages over the roof because no truck could reach the lot. It went on the punch list only after inspection sign-off on the new framing.
Homeowners in Sausalito tell us the same thing over and over: they want one contractor who understands the hillside, the salt air, the permit office, and the material brands, without having to explain any of it. That is the job we do. From the roof down to the pavers, you pick the brand and we handle the build. No subcontractor shuffle. No finger-pointing between a roofer, a cabinet shop, and a tile sub. One contractor, every phase.
General Contractor Services in Sausalito
General Contractor Services in Sausalito cover the full scope of a residential project, which in this town nearly always means more than one trade on one site. You might come to us for a kitchen remodel and then discover the hillside retaining wall behind the garage is the actual priority. We handle both. A typical kitchen remodel in Sausalito runs $14,000 to $45,000, and a bathroom remodel $9,000 to $28,000. A whole home addition starts around $45,000 and can reach $130,000 depending on what the hillside demands. The point is that we manage all of it under one contract, with one schedule and one accountable point of contact.
Kitchen and Bath Remodels
We install KraftMaid and Wellborn cabinetry, Cambria and Silestone countertops, and Kohler and Grohe fixtures. You select the finish level. We handle cabinet installation ($4,000 to $13,000), countertops ($2,000 to $6,500), backsplash ($800 to $2,500), and kitchen island installation ($3,000 to $10,000). In a hillside Sausalito kitchen, we also check what is behind the walls: salt corrosion on supply lines is common in older cottages near the water, and that changes the plumbing scope before any finish goes in.

Exterior Work and Room Additions
Room additions on Sausalito hillsides often begin with a soils and drainage assessment, because adding square footage above a failing retaining wall is not wise. We coordinate GAF, CertainTeed, and Owens Corning roofing systems ($8,000 to $20,000 for a full replacement), James Hardie fiber-cement siding, and impact windows from PGT and CGI ($8,000 to $25,000). For ADU construction, expect $90,000 to $220,000 depending on access and foundation work.

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.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Construction Company in Sausalito
Construction Company work in Sausalito is different from construction in flat-land Marin. The lot itself is often the project. Retaining walls and foundation drainage dominate budgets on the hillside streets off Bridgeway, where a bid for “an addition” is really a soils, waterproofing, and corrosion scope with a room attached. We do not bury that reality until week four and then hand you a change order. We flag it in the first walkthrough.
Hillside Foundations and Retaining
When a retaining wall fails on a 35-degree slope, the repair is not a fence post reset. It is excavation, drainage, sometimes helical piers or caissons, and a rebuilt wall engineered for the load. These are structural permits, not cosmetic ones. We pull them properly and get sign-off before anything cosmetic begins.
Coastal-Spec Framing and Deck Work
Framing near the Bay means stainless fasteners, not electro-galvanized. It means the right flashing tape on ledgers. It means marine-grade treated lumber or composite decking that will not turn gray and splintery in two winters. The coastal-spec version of a deck or addition costs more because the materials cost more. Stainless hardware alone runs two to three times the price of galvanized, and it is not optional when the fog sits on your deck railing every morning from June through September.
Trusted Brands We Service in Sausalito
We are authorized to work with over 50 named brands across every trade category, so homeowners in Sausalito are not stuck with whatever the subcontractor happens to have in the truck. You want GAF-certified roofing with the wind warranty transferred to your policy? Fine. You want CertainTeed shingles in a specific color that matches your neighbors on that hillside? We order it. Grohe fixtures in the walk-in shower, Sterling in the powder room. You pick the brand, we handle the build. We also know which finishes hold up in a salt-air environment and which ones will pit inside five years. We stock and order local parts for Sausalito jobs so turnaround does not stall on a backorder from the East Coast.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Sausalito Homes
- Corroded deck joist hangers and railings. Indoor-spec galvanized hardware fails within a few fog-and-salt-spray winters on exposed bayside decks. We re-spec stainless structural fasteners and powder-coated or aluminum railings.
- Under-scoped hillside retaining and foundation work. If the first bid does not include a drainage plan and a soils note, expect a change order later. We price the wall and the drainage from the start because that is the actual job.
- Materials left at the bottom of a 60-step access path. On streets off Bridgeway where no truck can turn around, materials must be carried or crane-lifted. A bid that forgets this blows the schedule and the budget.
- Rot at the ledger flashing line on view decks. That is the first place salt spray and fog collect. We tape, flash, and seal ledgers so the framing behind the deck does not rot out beneath an otherwise fine deck surface.
Pricing for General Contractor in Sausalito, CA
Sausalito pricing runs higher than inland Marin because the marine environment dictates materials and the hillside dictates labor and access. Here are the ranges we quote for the most common whole-home scopes:
| Project | Sausalito Price Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| Roof Replacement | $8,000 – $20,000 |
| Window Replacement | $4,500 – $15,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Kitchen Remodel | $14,000 – $45,000 |
The coastal-spec version of a project typically costs 12 to 18 percent more than an inland bid. Stainless hardware, marine-grade lumber, sealed paver joints, and planned crane access all add line items. The inland-spec version saves you money in year one and starts failing by year four or five. We would rather quote the honest number. Estimates are free, and they are line-itemed so you can see exactly where the coastal spec is doing its job.
We Also Serve Cities Near Sausalito
Our crews work up and down the Marin County waterfront, including General Contractor in Sausalito and the nearby communities of Marin City, Belvedere, Tiburon, and Chinatown. The same salt-air spec applies in every one, because the fog does not respect a city line.
Serving Sausalito, CA — Our Local Coverage Area
We’re based in the Sausalito 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 Sausalito
Because the materials that survive constant salt fog and marine air cost more. Stainless structural fasteners run two to three times the price of galvanized. Marine-grade lumber or composite decking costs more than standard pressure-treated. Sealed paver joints add labor. A 12 to 18 percent premium is typical, and it pays for itself by avoiding a fastener failure and structural repair within a decade. Call (855) 473-5620 and we’ll show you the exact line items.
We plan crane lifts or carry plans before the first draw on the schedule. On streets off Bridgeway where a box truck cannot turn around, we stage materials at the nearest accessible flat and crane them over the roof if the lot is not reachable by any vehicle. That cost is on the bid from the start, not a surprise when the crew shows up.
Yes, and frequently. On the hillside streets climbing toward the Golden Gate, a retaining wall, drainage system, and foundation work can exceed the cost of the finished living space above it. That is the reality of building on a 30-degree slope over unstable soils. We bid the wall and the drainage as the principal scope, not an incidental line item.
For structural work on a hillside, permits cover foundation, retaining, drainage, shear, and framing. Inspections require sign-off at each stage before we close anything up: footings and rebar, retaining wall, rough framing, flashing and waterproofing, then final. We handle the permits, schedule the inspections, and do not proceed to the next phase until the previous one is signed off.
Yes. A cabinet installation runs $4,000 to $13,000 and countertops $2,000 to $6,500, and we can do both without touching walls, plumbing, or electrical if the existing layout works for you. In an older cottage, we do check the wall framing and supply lines first, because salt corrosion in a 100-year-old hillside house can turn a simple cabinet swap into a larger plumbing scope. We tell you what we find before we quote, not after.
If you are planning a remodel, addition, ADU, or exterior replacement in Sausalito, call (855) 473-5620 for a free, line-itemed estimate. Ruben Castillo will walk the site with you and tell you honestly what the hillside and the salt air require.
Written by Ruben Castillo, Owner at San Bernardino Contractors, serving Sausalito and Marin County.