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Remodeling Company in San Anselmo, CA
Remodeling in San Anselmo means working with homes that often sit on hillsides, behind mature oaks, and inside a town that takes its architectural character seriously. Mason Remodeling handles general contracting, bathroom remodels, and whole-home renovations here with written pricing before any work starts and a 365-Day Done Right Promise on every completed project. If you’re weighing a kitchen update or a full addition, call (803) 680-2547 and we’ll walk you through what’s realistic for your street and your budget.
Why San Anselmo Homes Are Different

San Anselmo’s housing stock runs older than much of central Marin. You’ll find Craftsman bungalows from the 1920s, mid-century ranchers, and the occasional hillside contemporary, all built for a different era of plumbing, wiring, and floor plans. The terrain matters too. Homes in Sleepy Hollow and along Butterfield Road often sit on sloped lots, which affects drainage, foundation access, and how material gets moved onto the job site. That’s not a problem. It’s a scheduling and pricing reality we plan for from the first site walk.
The climate is wetter and cooler than most of the Bay Area, with real winter rain. We see more rot around window sills, more moisture in crawl spaces, and more demand for proper waterproofing in bathrooms than you’d find in drier parts of Marin. Permits go through the town’s building department, and older homes sometimes trigger review for hillside or creek-adjacent setbacks. We handle the paperwork, but you should know it exists before you fall in love with a floor plan that needs a variance.
Styles & brands we work with







Our Main San Anselmo Services
Most San Anselmo homeowners first call us about one of two things: a bathroom that needs to be gutted and rebuilt, or a larger general contracting or whole-home remodel that touches multiple rooms. Here’s what each looks like locally.
General Contractor in San Anselmo
Acting as your General Contractor in San Anselmo means we coordinate every trade, pull permits, and keep the job moving whether you’re adding square footage or reworking an existing floor plan. On hillside lots we pay close attention to drainage, retaining, and structural load, since so many San Anselmo homes sit on sloped ground. You get one point of contact, a written price before demolition starts, and a full year of follow-through if anything isn’t right.

Bathroom Remodeling in San Anselmo
A Bathroom Remodeling in San Anselmo job here often means working in tight, older spaces with cast-iron plumbing that’s past its useful life. We plan for subfloor repair, proper waterproofing, and ventilation upgrades on nearly every project, because older Marin homes hide moisture problems behind tile. The result is a bathroom that stays dry, functions well, and looks like it belongs in a San Anselmo home, not a showroom in another city.

Home Remodeling in San Anselmo
For a Home Remodeling in San Anselmo project, we’re often reconfiguring kitchens, opening walls, or converting underused square footage. Older homes here frequently have load-bearing walls that don’t line up with modern living patterns, so structural work becomes part of the plan. We’ll tell you what’s load-bearing, what’s not, and what the town will want to see before we frame anything. Written pricing covers the whole scope, not just the first week of 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.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in San Anselmo
We work with specification-grade product lines from Abodu and Cover, which gives San Anselmo homeowners access to factory-built accessory dwelling units and panelized construction without leaving town for a vendor. Materials are ordered to spec and staged locally so lead times stay predictable. See our brands for what we can source and service.
See the difference
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AfterPricing for Remodeling Company in San Anselmo, CA
| Service | Typical range in San Anselmo |
|---|---|
| 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 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Roof Replacement | $8,000 – $20,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
Prices in San Anselmo push toward the upper end when the job involves hillside access, older plumbing or wiring replacement, or structural changes that need engineering review. We deliver a written price before any work begins, so the number you approve is the number you pay, not a starting point.
Neighborhoods We Serve in San Anselmo
We cover the whole town, from the flats near downtown up through the hills. Scheduling follows the same pattern everywhere: we confirm the crew by name and photo before arrival, and we show up in clean marked vehicles.
- Sleepy Hollow
- Downtown San Anselmo
- Lansdale
- Butterfield Road area
- Yolanda Station
Service Area – Cities Near San Anselmo
Mason Remodeling also serves homeowners in nearby Marin communities, including Fairfax, CA, Kentfield, CA, San Rafael, CA, and Larkspur, CA. If you’re on the edge of San Anselmo and a neighboring town, tell us when you call and we’ll confirm coverage for 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 Remodeling Company in San Anselmo

Most projects begin with a site visit and a written estimate, then scheduling depends on your scope and the town’s permit timeline. We’ll give you a realistic start window after we see the property. Call (803) 680-2547 to set up the first walkthrough.
Most structural, plumbing, and electrical work requires a permit through the Town of San Anselmo. We handle the application and inspections as part of the job. Cosmetic updates like paint or cabinet refacing usually don’t need one.
Yes. We regularly work on sloped lots in Sleepy Hollow, Butterfield Road, and other hillside areas of San Anselmo. Terrain affects access and drainage planning, so we factor that into the written estimate before you commit to anything.
Ready to talk about your San Anselmo project? Call (803) 680-2547 for a free estimate. A live person answers every time, and you’ll get a written price before any work begins.
What happens when you call
- 1A real person answersNo phone trees - talk to a local construction pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What San Anselmo Customers Say
"Good work on the hall bath. They found a rotted subfloor, which added cost, but showed me photos and a clear price first."
- Neil P."Great quality tile work. The countertop template slipped by a week, but the project lead explained and kept us updated."
- Susan Y."Basement refinish with egress window. Drywall finish is smooth and the electrician was tidy."
- Kyle S.











