







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Bathroom Remodeling Across Larkfield-Wikiup
A full bathroom remodel in Larkfield-Wikiup typically runs $9,000 – $28,000, with smaller refreshes starting around $5,000. The spread comes down to scope: a tub-to-shower conversion sits near the low end, while a gut renovation with custom tile, a frameless glass enclosure, and a new vanity lands closer to $28,000. We know this market because we work it. If you’re planning a remodel off Old Redwood Highway or up in the Wikiup Drive area, call (803) 680-2547 and we’ll give you a written price before any work starts.
Larkfield-Wikiup isn’t a city with a building department. It’s unincorporated Sonoma County, which changes how permits work, how septic systems factor into a bathroom project, and how you should evaluate a contractor’s bid. More on that below. First, the short version: we scope the job, name the crew before they arrive, and put the price in writing. No verbal ballpark that grows on the final bill.
Why Mason Remodeling Is Larkfield-Wikiup’s Preferred Bathroom Remodeling Company

Homeowners here tend to ask the same three questions before they’ll even consider a contractor: who’s coming, what’s the real number, and what happens if something’s wrong a year later. We answer all three up front.
Every crew member who works in Larkfield-Wikiup is background-checked and identity-verified under The Threshold Standard. Before the visit, you get the technician’s name and photo. At the door, they show a photo ID badge. No mystery subcontractors, no “somebody will be in the area.” The person we name is the person who shows up.
Founded in 2004 as part of the Threshold Group family of home-service companies, Mason Remodeling has always put the price in writing before a tool is unpacked. That’s not a promotion. It’s how we’ve done it for two decades. Our 365-Day Done Right Promise means if the work isn’t right within a year of completion, we make it right at no cost to you. That covers the bathroom remodel itself, stated plainly in the written guarantee you get on every project.
We also answer the phone. A live person, every call, 24 hours a day, seven days a week. No call trees. When a Larkfield-Wikiup homeowner calls with a question about a rough-in inspection or a change order, they talk to a human.
Styles & brands we work with







One Day Bath Remodel in Larkfield-Wikiup
A One Day Bath Remodel in Larkfield-Wikiup is what it sounds like: an acrylic or composite surround installed over the existing tub or shower footprint, usually with a new valve trim and sometimes a new base, completed in a single day. For the right home, it’s a clean, fast refresh that skips demolition and tile work entirely. Expect to pay $3,500 – $10,000 depending on the surround material and whether you’re converting the tub or replacing it in kind.
Here’s where Larkfield-Wikiup’s housing stock matters. Much of what we see is 1970s – 1990s tract and rural-residential construction. The original subfloor around the toilet flange is often soft, and the cast-iron drain lines are frequently undersized for modern fixture flow rates. A one-day liner won’t fix either of those. If the hidden rough-in is failing, the liner becomes a temporary cover over a problem that will eventually force a full remodel anyway. We’ll tell you that before you spend a dollar.
When a Liner Makes Sense
A quick surround is right when the framing is sound, the plumbing is sound, and the homeowner wants a cleaner bathroom without a multi-week project. Older adults and families with one bathroom often lean this way because the disruption is one day, not six weeks.
When It Doesn’t
If the valve is original and the drain is undersized, we’ll recommend against it. We’d rather lose the quick job than install something that fails in two years. Our owner Isaac Pruett has been clear on this since 2004: the right answer beats the fast answer.
Bathroom Remodeling Contractor in Larkfield-Wikiup

A Bathroom Remodeling Contractor in Larkfield-Wikiup does more than swap finishes. The job means pulling the correct Sonoma County permit, opening walls to inspect the rough-in, replacing or re-routing plumbing as needed, re-decking the subfloor, waterproofing the wet area, and then installing everything from the valve to the vanity. A full project runs $9,000 – $28,000 here, and the quality of the work behind the tile matters more than the tile itself.
Our crew gutted a 1980s hall bath off Wikiup Drive where the original subfloor had softened around the toilet flange, and the cast-iron drain was undersized for the new Kohler shower rough-in. We pulled the County permit, re-flashed and re-decked the subfloor, ran new Moen valve rough-in to inspection sign-off, and closed it out at $18,400 with a Cambria vanity top. That’s inside the typical range before allowances moved. The point isn’t the exact number. It’s that the hidden problems were handled the right way, with a permit and an inspection sign-off.
Where the Money Moves
In Larkfield-Wikiup, the three biggest cost drivers are plumbing rough-in, waterproofing, and tile labor. A standard 5×8 bathroom with a tub-to-shower conversion might stay under $12,000. Add a custom Schluter strip (the metal trim that seals the edge where tile meets flooring), heated floor, and a frameless glass enclosure, and you’re past $20,000 fast. We line-item all of it so you can see exactly what you’re paying for.
Permits and Septic Reality
Because Larkfield-Wikiup is unincorporated, bathroom remodels route through Sonoma County Permit Sonoma, not a city building department. On private well and septic systems, a remodel can trigger septic-fixture-count and well-pressure questions that a city lot never sees. Adding a second bathroom or a second shower head can push the septic system’s design load. We’ll check that before we bid, so you’re not surprised mid-project.
Trusted Brands We Service in Larkfield-Wikiup
We stock and install Kohler, Moen, and Toto fixtures, plus Cambria, Silestone, and Caesarstone surfaces. For cabinetry, we work with KraftMaid and Wellborn. In the prefab space, homeowners sometimes ask about brands like Abodu, Cover, Dvele, and Mighty Buildings; we’re familiar with them and can tell you where a factory-built unit makes sense and where stick-built is the better call. If a part is failing and you’re in Larkfield-Wikiup, we can usually source the replacement fast because we’re not working through a big-box parts desk. You get a specification-grade product, not whatever’s on the clearance shelf.
See the difference
Before
After
Before
After
Before
AfterCommon Bathroom Remodeling Problems We See in Larkfield-Wikiup Homes
- Soft subfloor around the toilet flange. After 30 – 50 years of slow leaks, the plywood under the toilet often rots. A new floor over bad subfloor just hides the problem until the flange sinks and the wax ring fails again.
- Undersized cast-iron drains. Original 1970s-era drain lines were sized for lower-flow fixtures. Modern shower valves move more water, and the old lines can’t always keep up. We catch this during rough-in inspection.
- Unpermitted prior work. We frequently find valve or drain changes done without County sign-off. At resale, that shows up as a failed inspection. Pulling a retroactive permit through Permit Sonoma is slower and more expensive than doing it right the first time.
- Well and septic constraints. On private systems, adding a second shower head or an extra bathroom can exceed the system’s design capacity. We check fixture count against septic records before the scope is locked.
Pricing for Bathroom Remodeling in Larkfield-Wikiup, CA
Here’s what we see in this market, in real numbers.
| Scope | Typical Price Range |
|---|---|
| Full 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 |
| Shower Replacement | $3,000 – $8,500 |
| Bathroom Vanity Installation | $800 – $3,000 |
What moves the number: size of the wet area, condition of the rough-in, tile square footage and pattern, glass enclosure choices, and whether you add features like a heated floor or niche framing. A written price is delivered before any work starts, on every project, every time. No allowances that conveniently expand on the final invoice. Call (803) 680-2547 for a free estimate on your Larkfield-Wikiup bathroom.
We Also Serve Cities Near Larkfield-Wikiup
Beyond Larkfield-Wikiup, our Bathroom Remodeling team covers Los Angeles, San Diego, San Jose, and San Francisco. If you’re comparing contractors across Sonoma County or beyond, start with a written line-item bid and see who’s willing to put their number on paper. You can learn more about our service area on the Larkfield-Wikiup hub page.
Serving Larkfield-Wikiup, CA - Our Local Coverage Area
We’re based in the Larkfield-Wikiup 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 Larkfield-Wikiup
Yes, for most bathroom remodels in Larkfield-Wikiup you’ll need a permit through Sonoma County Permit Sonoma. Anything that touches plumbing rough-in, drain lines, or structural changes like subfloor replacement triggers a permit. Finish-only work, like painting or swapping a vanity without moving plumbing, may not. We pull the permits and manage inspections for every project we run, and we’ll tell you what’s required before the bid is final.
Mostly because contractors are bidding different scopes. One bid covers a tub-to-shower conversion with a liner; another prices a full gut with new rough-in, waterproofing, and custom tile. That’s the $3,500 end versus the $28,000 end. Ask for line items, not a lump sum. Call (803) 680-2547 and we’ll show you exactly where your number comes from.
A full bathroom remodel in Larkfield-Wikiup typically takes 4 to 8 weeks from demolition to final inspection. County permit timing through Permit Sonoma can add days at the rough-in and final stages. A tub-to-shower conversion or shower replacement is faster, often 1 to 3 weeks. A one-day bath remodels is done in a single day.
It can, but only with a written change order you sign. If we open a wall and find rotted framing or bad drains, we’ll show you the condition, explain the fix, and give you a price before we touch it. You approve it or you don’t. The original written price is the baseline. Nothing gets added silently. That’s part of our no-hassle upfront pricing policy and it’s never waived.
A punch list is the final walkthrough where we document small items that aren’t right yet: a misaligned cabinet door, a grout line that needs cleaning, a fixture that needs adjustment. We fix every item on the list, then you sign off. After that, the 365-Day Done Right Promise covers the work for a full year from completion date. If something fails, we return and make it right at no cost.
Written by Isaac Pruett, Owner at Mason Remodeling, serving Larkfield-Wikiup since 2004.










