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Fast, Reliable Bathroom Remodeling Across Thousand Oaks
Bathroom remodeling in Thousand Oaks typically runs $9,000 to $28,000, and most full remodels take three to six weeks depending on whether we’re moving plumbing or dealing with slab work. We’re Mason Remodeling Co Thousand Oaks, and we’ve remodeled bathrooms in neighborhoods from Lynn Ranch to Newbury Park long enough to know what hides behind the walls of the tract homes built here in the 1960s through 1980s. Our crews understand Ventura County’s permit process, the hillside drainage issues that show up in Wildwood and Lynn Ranch, and why a shower pan choice matters more here than in flat parts of the county. Call (805) 309-3386 and you’ll get a live person, not a call tree. You’ll also get a written price before any work starts, so there’s no guessing what the final bill will be.
Why Mason Remodeling Co Thousand Oaks Is Thousand Oaks’s Preferred Bathroom Remodeling Company

Homeowners in Thousand Oaks keep calling us back because we treat every job like the house is occupied by people who care about who’s walking through the door. Every technician who arrives at your home has been background-checked and identity-verified under the Threshold Standard. Before the visit, you get the crew member’s name and photo. When they arrive, they’ll be in a clean marked uniform and show a photo ID badge at the door. That’s not a courtesy. It’s how we operate on every single project.
We also understand the local building stock in a way that only comes from doing the work here. Thousand Oaks is full of wood-framed, stucco-clad tract homes on engineered hillside pads. Many of those pads were cut and filled in the 1960s and 1970s, and some have settled in ways that affect bathroom floors, shower pans, and tile. A bathroom remodel in Thousand Oaks isn’t the same job as one in a flat, newer subdivision. Our team is led by Isaac Pruett, and when you call, you’re getting a contractor who plans for the slab, not against it. See our full Bathroom Remodeling services to understand the scope we handle.
Styles & brands we work with







Shower Remodel in Thousand Oaks
A shower remodel in Thousand Oaks usually means more than swapping out tile. In the hillside neighborhoods, it often means opening the floor to check the drain line, repairing subfloor settlement, and waterproofing to a standard that survives the region’s hard water and the occasional moisture swings Santa Ana winds bring. You can expect to spend $3,000 to $8,500 on a shower replacement, or $4,500 to $12,000 if we’re building a walk-in shower from scratch. Those ranges assume the drain is in good shape. If it’s not, we’ll tell you before we open the wall, not after.
Drain Repair Before Tile
In a Lynn Ranch ranch-style home, our crew discovered the original cast-iron shower drain had corroded into the slab, and the subfloor around the toilet flange was soft from decades of slow seepage. We pulled the permit, opened the floor to re-route the drain with modern ABS, and installed a Schluter waterproofing system before tiling the walk-in shower with large-format porcelain that could handle minor slab movement.
Moisture Barriers That Hold
Thousand Oaks’ hard water eats through standard drywall behind a tub surround faster than homeowners expect. We don’t use standard drywall there. We use cement board with a waterproof membrane, or a full Schluter system, because the failure mode in this climate is predictable: moisture gets behind the tile, the grout cracks, and you’re remodeling again in three years.
Tub to Shower Conversion in Thousand Oaks

A tub to shower conversion in Thousand Oaks runs $3,500 to $10,000, depending on whether the existing drain location works and whether the subfloor needs structural attention. Many homeowners in the Conejo Valley’s older tract homes want the tub gone because they don’t use it, and a walk-in shower is easier on knees and safer for aging in place. The job involves removing the tub, checking the subfloor and drain, moving or reusing the plumbing rough-in, and building a waterproof shower pan with curb or curbless entry depending on your preference.
Subfloor Reality Check
On hillside pads, we typically find some floor deflection near the tub. Before we install a shower pan, we’ll check for uneven settling. If the floor has moved, we’ll reinforce it so your tile doesn’t crack in the first year. This step gets skipped by lowball bidders. It’s also the step that determines whether your shower lasts ten years or twenty.
Permit and Rough-In Work
Ventura County requires a plumbing permit for any tub-to-shower conversion that moves a drain or trap. We pull the permit, call for the rough-in inspection before the walls close, and schedule the final inspection after the job is done. A compliant quote includes these permit and inspection costs. A cheap one leaves them out and hopes the inspector never shows up. They do show up here.
Trusted Brands We Service in Thousand Oaks
We stock and install a range of professional-grade products for Thousand Oaks bathrooms, including fixtures and glass enclosures from brands like Kohler, Moen, and Toto. For windows and glass enclosures, we’ve worked with CGI and ES Windows on projects where homeowners want impact-rated glass or custom frameless shower enclosures. When you’re planning a bathroom remodel, you don’t need to drive to a showroom in the Valley to order parts. We coordinate the material selections with you, and we keep what’s needed in the pipeline so the job doesn’t stall waiting on a faucet.
Common Bathroom Remodeling Problems We See in Thousand Oaks Homes
- Hidden slab settling under tile and shower pans. In hillside neighborhoods like Wildwood and Lynn Ranch, cut-and-fill construction from the 1970s can create floor movement that cracks tile and shower pans within a year of installation. We reinforce the floor before it becomes a problem.
- Corroded cast-iron drain lines. Homes built in the 1960s and 1970s often have original cast-iron drains that rust through at the slab line. We see slow seepage that rots subfloors and ruins flooring before the homeowner notices a smell.
- Drywall tub surrounds without proper waterproofing. Builders in the 1970s and 1980s sometimes set tub surrounds over standard drywall. Thousand Oaks’ hard water and seasonal humidity swings break those down fast. We replace them with proper backer board and membrane.
- Skipped permits leading to stop-work orders. Ventura County inspectors do flag unpermitted rough-in work. If a previous remodel was done without permits, we can usually bring it up to code and close the permit history properly.
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AfterPricing for Bathroom Remodeling in Thousand Oaks, CA
You deserve real numbers before you decide whether to call. Here’s what we typically see in Thousand Oaks for bathroom work, based on current local labor and material costs:
| Project | Typical Price Range |
|---|---|
| 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 |
What moves the price up or down? Structural subfloor repair, moving plumbing, custom tile work, and whether you choose a curbless shower (more waterproofing, more labor) or a standard curb. We give you a written price before any work starts, and that price doesn’t change unless you ask us to change the scope. Call (805) 309-3386 for a free estimate on your specific project.
We Also Serve Cities Near Thousand Oaks
Our crews cover the Conejo Valley and surrounding areas, including Westlake Village, Oak Park, Agoura Hills, and Simi Valley. If you’re in one of those communities, you’ll get the same written-price guarantee and the same background-checked crew standard. Learn more about our work across the area on our Bathroom Remodeling in Thousand Oaks page.
Serving Thousand Oaks, CA - Our Local Coverage Area
We’re based in the Thousand Oaks 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 Thousand Oaks
Yes, if you’re moving the drain or trap, which almost every tub-to-shower conversion requires. Ventura County issues plumbing permits for this work, and the rough-in must be inspected before the walls close. A compliant quote includes the permit fee and the time to schedule inspections. If a contractor tells you no permit is needed for drain work, that’s a red flag. We pull the permit on every job that requires one, and we leave you with a closed permit record. Call (805) 309-3386 to discuss your project.
Hillside cut-and-fill pads can shift slightly over decades, which means a rigid shower pan can crack. We typically recommend a mortar-bed or Schluter foam pan with a flexible waterproofing membrane that tolerates minor movement. In neighborhoods like Wildwood and Lynn Ranch, we’ll also check the subfloor for deflection before we set the pan. That’s the difference between a shower that lasts and one that fails in a year. Call (805) 309-3386 for an exact assessment.
A rough-in inspection happens after the plumbing and electrical are in the wall but before drywall or tile covers them. The inspector verifies the drain slope, trap, venting, and water lines. A final inspection happens after everything is installed and confirms the work matches the approved plans and code. We schedule both, walk through each with the inspector, and keep the documentation for your records. Call (805) 309-3386 if you want a quote that includes both.
It can help in some cases, especially if the remodel includes updating old plumbing or adding water-resistant construction that reduces leak risk. Thousand Oaks insurers sometimes adjust premiums when documented, permitted work replaces aging systems. We provide a permit-closed record and a written guarantee for every project, which you can share with your carrier. Call (805) 309-3386 to talk about your situation.
Contractors use allowances for items you haven’t selected yet, like fixtures, tile, or vanities. The allowance covers the estimated cost, and if you choose something above it, you pay the difference. We avoid allowances that create surprise costs. We spec your materials before the quote and put the actual price in writing. If we do use an allowance, it’s clearly stated and we walk you through it before you sign. Call (805) 309-3386 for a written price.
Written by Isaac Pruett, Owner at Mason Remodeling Co Thousand Oaks, serving Thousand Oaks and the Conejo Valley.
Contact Mason Remodeling Co Thousand Oaks
If you’re ready to talk about your bathroom remodel, call (805) 309-3386. You’ll reach a live person who can answer your questions and schedule a free estimate. We’ll send you the name and photo of your technician before the visit, deliver a written price before any work starts, and back the completed job with our 365-Day Done Right Promise. No call trees, no vague verbal estimates, no surprises on the final bill.










