Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Remodeling Company in Mill Valley, CA
Mason Remodeling handles general contracting, bathroom, and whole-home remodeling throughout Mill Valley, CA. Most homes here were built on steep lots with foundations that have settled and shifted over decades, which means a remodel job is rarely a simple swap-out. You’ll get a written price before any work starts, and every crew member who steps onto your property arrives in a clean uniform with a photo ID badge. Call (803) 680-2547 to talk through your project.
Why Mill Valley Homes Are Different
Mill Valley’s housing stock runs older than most of Marin County. A significant share of homes went up between the 1920s and 1960s, often as weekend cabins that were later expanded, sometimes without permits. We regularly open walls in Sycamore Park and Boyle Park to find stud spacing that does not match modern code, framing that was never meant to carry a second floor, and electrical runs that predate grounded outlets. On hillside lots in Cascade Canyon and Blithedale Canyon, retaining walls and drainage often tie directly into the home’s foundation, so a bathroom remodel can turn into a soil and grading conversation faster than it would on a flat lot in Corte Madera.
Moisture is the other constant. Fog off Richardson Bay moves up the canyons most mornings, and redwood-shaded north-facing lots stay damp through July. We plan for waterproofing and ventilation on every Mill Valley job the way an East Coast contractor plans for snow. Permits matter here too. Mill Valley’s planning department reviews hillside projects, tree protection zones, and any work that touches daylight planes or creek setbacks. We handle the permit package as part of the written scope, so you do not chase paperwork on your own.
Styles & brands we work with
Our Main Mill Valley Services
General contracting, bathroom remodeling, and whole-home remodeling are the three jobs Mill Valley homeowners call us about most. Each has its own page with local pricing and details.
General Contractor in Mill Valley
As your General Contractor in Mill Valley, we run the full job: demo, framing, plumbing, electrical, tile, paint, inspections. Mill Valley homes often have multiple previous additions stitched together, so we spend real time on the front end identifying what is load-bearing, what was done to code, and what needs remediation before new work begins. We coordinate every trade, pull permits when needed, and hand you a written price up front. One point of contact, one schedule, no surprises at final billing.
Bathroom Remodeling in Mill Valley
Bathroom Remodeling in Mill Valley deals with small, oddly shaped bathrooms carved out of old framing. Many are 5-by-8 footprints with cast iron stacks that have been in place since the Eisenhower administration. We open the walls, check what is behind them, and build a plan around what is actually there, not an optimistic idea of it. Waterproofing gets real attention because moisture in a redwood canyon never really leaves. We install properly sloped pans, sealed niches, and ventilation that moves air, not just noise.
Home Remodeling in Mill Valley
Home Remodeling in Mill Valley covers larger projects: kitchen overhauls, room additions, garage conversions, and whole-home refreshes. These jobs often touch multiple levels of a hillside home, which means staging materials and managing access without tearing up the only driveway on a narrow street. We plan for that. Every project, large or small, comes with a written scope and a fixed price before demolition starts. If the work is not right within 365 days of completion, we return and make it right at no cost under our Done Right Promise.
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 Mill Valley
We install and service materials from Sakrete, Abodu, and Cover across Mill Valley. Prefab and modular components from Abodu and Cover fit well on sites where hillside cranes and narrow roads limit traditional framing, and Sakrete products handle the drainage and footing work that Marin’s wet winters demand. See our brands for the full material list.
See the difference
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AfterPricing for Remodeling Company in Mill Valley, CA
| Service | Typical range in Mill Valley |
|---|---|
| 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 |
| Home Addition | $45,000 – $130,000 |
| Garage Conversion | $30,000 – $80,000 |
| ADU Construction | $90,000 – $220,000 |
| Countertop Installation | $2,000 – $6,500 |
Hillside access, foundation surprises, and permit review times push Mill Valley prices toward the upper end of these ranges more often than flat-lot towns nearby. That is exactly why we deliver a written, line-itemed price before any work begins. You will not get a verbal estimate that grows on the final invoice, and you will not pay for a change we did not put in writing first.
Neighborhoods We Serve in Mill Valley
We run crews through every part of Mill Valley, from the flats near downtown out to the canyon roads and ridge lines. Each neighborhood has its own access quirks, and we schedule around them.
- Sycamore Park
- Boyle Park
- Cascade Canyon
- Blithedale Canyon
- Tamalpais Valley
We schedule Mill Valley work in full-day or multi-day blocks rather than squeezing jobs between appointments. That means fewer trips up and down the canyon roads, less congestion on your street, and a cleaner handoff at completion.
Service Area – Cities Near Mill Valley
While this page focuses on Mill Valley, we also schedule work in Corte Madera, CA, Larkspur, CA, Sausalito, CA, and Kentfield, CA. Each has its own permitting office and terrain, and our written-price promise applies the same way no matter which side of the ridge the job is on.
Serving Mill Valley, CA - Our Local Coverage Area
We’re based in the Mill Valley 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 Mill Valley
Most Mill Valley remodels start within two to four weeks of the written estimate, depending on permit requirements and material lead times. Hillside projects and anything touching creeks or protected trees can add time at the planning desk. Call (803) 680-2547 for a straight answer on your specific scope.
Most structural, electrical, and plumbing work in Mill Valley requires a permit, and the city reviews hillside, drainage, and tree-protection items closely. We pull the permits as part of the written scope, so the approval process is ours to manage, not yours. Our price includes the permit package for covered work.
If any part of the completed work fails or is not right within 365 days from the completion date, we return and fix it at no cost to you. That covers workmanship and materials we installed. It does not cover normal wear, homeowner damage, or changes made after we leave. Call (803) 680-2547 and we will send someone back out.
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 Mill Valley Customers Say
"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."Written scope, fixed price, and weekly updates. No change orders we hadn't agreed to."
- Carlos H.
