







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Home Remodeling Across Mill Valley
Home remodeling in Mill Valley, CA carries a different set of realities than most of Marin County. The hillside lots, the narrow streets off Miller Avenue, and the sheer number of homes built between 1900 and 1960 mean your project will almost certainly involve surprises once walls come open. What a homeowner needs first is a straight answer on scope, price, and who exactly will be walking through the door. A full home remodel in Mill Valley typically runs $45,000 to $130,000 for an addition, while a kitchen lands between $14,000 and $45,000 and a bath between $9,000 and $28,000. Call Mason Remodeling at (803) 680-2547 for a written, line-item estimate before any work begins.
Why Mason Remodeling Is Mill Valley’s Preferred Home Remodeling Company

Every Mason Remodeling job starts the same way: you get a written price before a single tool is unpacked. Not a verbal ballpark, not a range that widens after demo day. A written scope of work with allowances spelled out. That matters in Mill Valley, where older homes on hillside lots tend to reveal electrical and structural issues that a less careful contractor would bury in a change order later. Our Home Remodeling team has handled enough projects in this city to know exactly where those costs hide.
Isaac Pruett leads our crews, and every technician who arrives at your door is background-checked, identity-verified, and introduced to you by name and photo before the visit. That’s the Threshold Standard, and it isn’t optional. Homeowners in Mill Valley, especially those alone during the day or with young children at home, tell us that’s the reason they chose us over the other bids. You’ll see a marked uniform and a photo ID badge at the door. No mysteries.
Styles & brands we work with







Full Home Remodel in Mill Valley
A Full Home Remodel in Mill Valley means something different than it does in Corte Madera or Larkspur. Here, the work often begins with a structural conversation: is the house shear-walled for seismic loads, does the foundation need attention on a sloped lot, and is the existing electrical system safe to build on. We scope all of that before we touch finish work. Expect $45,000 to $130,000 for a home addition in this market, and $30,000 to $80,000 if you’re converting a garage.
Whole-Home Scope and Sequence
We open walls, confirm what’s actually behind them, then correct electrical, plumbing, and structural issues before drywall goes back up. In Mill Valley’s older stock, that correction phase is where the real work happens. KraftMaid or Wellborn cabinetry, Cambria or Silestone counters, and Moen or Kohler fixtures come after the bones are right.
Hillside and Access Considerations
Many Mill Valley streets off Cascade Drive or in Sycamore Park are narrow, with tight turnarounds and limited staging. Material delivery takes longer, and that labor shows up in the calendar and the line items. We plan for it up front so you’re not surprised by a delivery fee buried in week six.
Home Remodeling Contractor in Mill Valley

Hiring a Home Remodeling Contractor in Mill Valley means choosing someone who will pull permits through the City of Mill Valley, meet inspectors, and stand behind the work for a full year. We do all three. The 365-Day Done Right Promise applies to every project: if the work isn’t right within a year of completion, we return and make it right at no cost to you. That’s written into your guarantee, not implied.
Kitchen and Bath Remodels
A small kitchen remodel in Mill Valley runs $9,000 to $20,000, while a full kitchen is $14,000 to $45,000. Cabinetry alone lands between $4,000 and $13,000, and countertops between $2,000 and $6,500. For bathrooms, expect $5,000 to $12,000 for a small scope and $9,000 to $28,000 for a full remodel. Walk-in showers run $4,500 to $12,000; tub-to-shower conversions $3,500 to $10,000.
Additions, ADUs, and Garage Conversions
ADU construction in Mill Valley costs between $90,000 and $220,000, depending on whether you’re building over a garage or on a slab. Garage conversions are $30,000 to $80,000. Hillside lots pushing into structural engineering will land at the higher end. We put those numbers in writing before you commit.
Trusted Brands We Service in Mill Valley
Mason Remodeling holds specification-grade material partnerships with some of the names Mill Valley homeowners ask for most: Cambria and Silestone for surfaces, KraftMaid and Wellborn for cabinetry, Moen and Kohler for fixtures. We also stay current on the modular and prefab systems some Marin clients ask about, including Abodu, Cover, and Dvele, so if you’re weighing a backyard unit against an attached addition, we can speak to both paths without a sales pitch. Because we order directly through our trade accounts, Mill Valley customers avoid retail lead times on the pieces that usually hold up a schedule.
See the difference
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After
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After
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AfterCommon Home Remodeling Problems We See in Mill Valley Homes
- Knob-and-tube wiring behind the walls. Homes built between 1900 and 1960 in neighborhoods like Sycamore Park still carry active knob-and-tube circuits. A kitchen or bath remodel will almost always trigger an electrical rough-in upgrade to current code.
- Unpermitted prior work. Mill Valley has generations of additions and “improvements” that never passed inspection. When we open a wall, we find them. Correcting the record with the city before we close things up saves you double the cost later at sale or refinance.
- Water damage from hillside drainage. Sloped lots off Cascade Drive and around the Blithedale Canyon area move water against foundations and subfloors. We routinely replace sistered or rotted subfloor sections before finish flooring goes down.
- Narrow street access for materials. Many Mill Valley streets have no staging room. Deliveries arrive on smaller trucks, more often, which adds labor hours to the schedule. We scope that into the written estimate from day one.
Pricing for Home Remodeling in Mill Valley, CA
Mill Valley pricing reflects older housing stock, hillside access, and city permitting requirements. The ranges below are what we quote in this market, and they hold unless we find something behind the wall that changes the scope, at which point you get a written change order before we proceed. No work begins on a changed scope without your signature.
| Project | Mill Valley Price Range |
|---|---|
| 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 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
The estimate we hand you is free, written, and itemized. Call (803) 680-2547 to schedule yours.
We Also Serve Cities Near Mill Valley
Our crews serve homeowners across Marin County. Looking for Home Remodeling in Mill Valley means you’re near Corte Madera, Larkspur, Sausalito, and Kentfield, all within a short drive of our scheduling office. If you live in one of those communities, the same pricing and written-scope standard applies.
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 Home Remodeling in Mill Valley
Yes. Any remodel that touches electrical, plumbing, or structural work requires a building permit through the City of Mill Valley. Even a “cosmetic” kitchen or bath often triggers an electrical rough-in upgrade in older homes, and unpermitted work gets flagged during resale or refinance. We pull permits on every job where they’re required and handle the inspections. Call (803) 680-2547 for a scope review and free estimate.
A kitchen remodel in Mill Valley runs $14,000 to $45,000, with smaller scopes at $9,000 to $20,000. The big drivers are whether walls move, whether the electrical system needs upgrading, and which cabinet and counter lines you choose. KraftMaid and Wellborn cabinetry, Cambria and Silestone counters, and Moen or Kohler fixtures land differently on the final number. We price all of it in writing before work starts.
A typical kitchen runs 6 to 10 weeks; a bath 3 to 6 weeks; a home addition 4 to 8 months depending on structural and hillside engineering. Mill Valley’s narrow streets and permit inspections add calendar time that flatter, newer neighborhoods don’t face. You’ll get a written schedule with your estimate, and we update it weekly.
A change order is a written document that updates your scope and price when something changes after the original contract. In Mill Valley, the most common triggers are knob-and-tube wiring discovery, subfloor rot from hillside drainage, or unpermitted prior work that must be corrected. You’ll see the change order before we do the work, with a clear dollar figure attached. No surprises, no verbal additions.
The punch list is the final set of small items: paint touch-ups, trim alignment, a cabinet door adjustment. We walk the project with you, item by item, and the job isn’t complete until the list is cleared. In Mill Valley, we schedule the city inspection before the final walkthrough so you’re not waiting on a reinspection. Call (803) 680-2547 for an exact quote on your remodel; estimates are free.
Written by Isaac Pruett, Owner at Mason Remodeling, serving Mill Valley through the Threshold Group family of home-service companies since 2004.










