Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Bathroom Remodeling Across San Anselmo
Bathroom remodeling in San Anselmo typically runs $9,000 – $28,000, and your final number depends most on one thing most online estimators ignore: whether your home sits on the Ross Valley floor or up on a ridgeline. That single fact drives foundation work, waterproofing specs, and the hardware you should be using. We’ve worked on enough 1920s Craftsman bungalows near Sir Francis Drake Boulevard and enough hillside homes up in Sleepy Hollow to know the difference shows up fast. Call (936) 259-2607 and we’ll give you a written price before any tile comes up.
Why Penhallow Remodeling Is San Anselmo’s Preferred Bathroom Remodeling Company
We write the number down before we pick up a hammer. That’s not a sales line, it’s the Kingswell standard: a written price, a defined arrival window, a clean job site, and a written guarantee on every single project. Trevor Nash leads our crew, and he’s the kind of contractor who explains what cement board substrate means without making you feel stupid for asking.
Every technician who walks into a San Anselmo home is background-checked and in uniform. You know exactly who’s showing up. Our crews work out of the brand’s San Francisco Bay Area office, so scheduling to San Anselmo neighborhoods like Barber Tract, Sorich Ranch, or downtown near Creek Park is straightforward. When you call, a live person answers. Not a voicemail prompt, not a callback service. Every time.
We install materials that carry their own warranties alongside our 365-Day Done Right Promise. That means a Kohler shower valve, a Cambria vanity top, or a Schluter waterproofing membrane all come with layered protection. If something fails inside the guarantee window, we come back and fix it at no charge. Written down, signed, and dated.
Bathroom Remodeling Contractor in San Anselmo
A Bathroom Remodeling Contractor in San Anselmo has to be fluent in two codebooks at once: FEMA flood-zone elevation requirements for valley-floor parcels and Chapter 7A ignition-resistant standards for hillside lots. Most contractors know one or the other. We work in both every month. A full bathroom remodel here means demolition down to the studs and subfloor, waterproofing built for the Ross Valley’s damp soil cycles, plumbing and electrical updates, tile, fixtures, vanity, and finish work. The cost ranges from $9,000 for a modest hall bath to $28,000 for a larger primary suite reconfiguration.
Full Bathroom Remodeling
We gut the room, rebuild it properly, and document everything. A full remodel includes a written scope of work, permits when the city requires them, and a fixed price before demolition starts. In older San Anselmo homes, we budget for the surprises: rotted mudsills, shifted piers, and framing that needs reinforcement before waterproofing can go in.
Small Bathroom Remodels
A guest bath or half bath runs $5,000 – $12,000 in San Anselmo, and these projects move faster because the footprint is tighter. But small doesn’t mean simple. We still pull the old tile to check what’s underneath, still correct any moisture damage, and still use the same waterproofing standard we’d use on a primary bath.
Walk In Shower in San Anselmo
A Walk In Shower in San Anselmo costs $4,500 – $12,000 installed, and the smart money goes toward a waterproofing system built for this valley’s humidity and floodplain moisture. We see showers fail early when installers skip the membrane behind the tile or use the wrong drain assembly. In a 1920s Craftsman with a pier foundation, that failure happens faster because the floor moves with seasonal soil saturation and drying cycles.
Tub-to-Shower Conversion
Converting a tub to a walk-in shower runs $3,500 – $10,000 and requires careful planning around the existing drain location. In older San Anselmo bathrooms, the original cast-iron tub often sits directly on the subfloor. When we pull it, we inspect what’s underneath before we even order materials.
Frameless Glass Shower Enclosures
Frameless glass enclosures give a small bathroom visual room and eliminate the metal tracks that corrode fast in salt-tinged air. We specify stainless or hot-dip hardware on every hinge and bracket. The difference is about 18 months of life on standard galvanized parts versus a decade or more with the right metal.
Trusted Brands We Service in San Anselmo
We stock and install trade brands that back up our work. Cambria and Silestone quartz for vanity tops, Kohler and Moen fixtures, and Schluter waterproofing systems are our standard. We also work with homeowners who’ve been researching newer panelized building approaches like Abodu or Dvele for larger projects, and we’re happy to explain how those compare on cost and timeline for a San Anselmo lot. When you need a part replaced or a fixture swapped, we keep common components on hand so most visits are resolved in one trip.
Common Bathroom Remodeling Problems We See in San Anselmo Homes
- Rotted mudsills and shifted piers. Valley-floor homes near the creek have endured decades of soil saturation and winter runoff. Once we open the subfloor, we often find the original post-and-pier foundation needs reinforcement before any finish work can start.
- Corroded cabinet hardware and door sag. Salt-laden air from the coast degrades standard galvanized hinges within about 18 months. We specify stainless or hot-dip hardware on every bathroom cabinet installation.
- Hidden moisture behind tile. Diablo-wind events drive rain through poorly sealed exterior vents and window frames. By the time mold shows on the wall, the framing behind the tile has usually been wet for months.
- Waterproofing failures in walk-in showers. The valley’s elevated humidity and freeze-thaw cycles punish thin or missing membrane systems. We use Schluter waterproofing on every shower pan and wall assembly.
Pricing for Bathroom Remodeling in San Anselmo, CA
Here’s what we quote in San Anselmo today. These are written ranges, not ballpark guesses.
| Project | San Anselmo Price Range |
|---|---|
| Bathroom Remodel | $9,000 – $28,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Bathroom Vanity Installation | $800 – $3,000 |
What moves your number? Foundation condition, waterproofing scope, and hardware grade. A $1,200 vanity swap on a solid 1990s slab is different from a $3,000 installation that includes repairing the rotted subfloor underneath. We give you a written scope of work that itemizes every line, so you see exactly where the money goes. Call (936) 259-2607 for a free estimate, and you’ll have a written number you can hold us to.
We Also Serve Cities Near San Anselmo
We work across the Ross Valley and into the surrounding Marin communities. That includes Fairfax, Kentfield, San Rafael, and Larkspur. Every project gets the same written price and the same 365-Day Done Right Promise. If you’re outside San Anselmo proper, check our Bathroom Remodeling in San Anselmo page or call us directly to confirm your street.
Serving San Anselmo, CA - Our Local Coverage Area
We’re based in the San Anselmo 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 Bathroom Remodeling in San Anselmo
Yes, and we’re not going to soften that. Standard galvanized hinges and brackets corrode within about 18 months in San Anselmo’s salt-tinged air. We specify stainless or hot-dip hardware on every cabinet and shower door installation. It adds a modest line item to the quote and eliminates a predictable failure. Call (936) 259-2607 and we’ll show you the exact difference on your written estimate.
San Rafael sits mostly on better-drained, less flood-prone ground than San Anselmo’s creek-bottom parcels. FEMA flood-zone elevation requirements and Marin County floodplain permits add permitting time and sometimes foundation work that a San Rafael remodel never touches. That’s not markup, it’s code compliance and structural reality. A written scope of work from us will show exactly where the cost goes, line by line.
Yes, and we’ve done it many times. The key is inspecting what’s under the bathroom before we set the pan. In a 1920s Craftsman near Sir Francis Drake Boulevard, we found the mudsill rotted from repeated creek inundations and the piers shifted during storm runoff. We installed a new pressure-treated mudsill anchored to a reinforced pier system, then used a Schluter waterproofing membrane on the walk-in shower pan. With the structure fixed first, the shower won’t crack or leak when the next wet season saturates the ground.
We treat the bathroom as a sealed, ventilated system rather than a tile job. That means waterproofing membrane on every shower wall up to the ceiling, a properly sloped pan, an exhaust fan sized for the room’s cubic feet, and sealing any exterior penetrations where Diablo-driven rain can enter. In valley-floor homes, we also check that crawlspace ventilation is moving moisture out, not trapping it under the bathroom.
It should name every material by brand and model, list each phase of work in order, state the total price in writing, and describe what happens if something fails after completion. Ours includes the 365-Day Done Right Promise: if it’s not done right, we make it right at no charge. And if a repair fails, the second visit is free. No service call fee, no re-inspection fee.
Call (936) 259-2607 to schedule your free estimate. We’ll sit across the table, walk the job with you, and hand you a written number before any work starts.
Written by Trevor Nash, Owner at Penhallow Remodeling, serving San Anselmo and Marin County with written prices and written guarantees on every project.







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