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Fast, Reliable Bathroom Remodeling Across Santa Monica
Bathroom remodeling in Santa Monica typically runs $9,000 – $28,000 for a full remodel, with smaller projects like a tub-to-shower conversion landing between $3,500 and $10,000. The salt air and Coastal Zone rules here change what materials make sense and which permits you’ll need before the first tile comes up. Penhallow Remodeling serves Santa Monica homeowners with written pricing before any work starts, background-checked crews who arrive in uniform, and a 365-Day Done Right Promise in writing on every project. Call (213) 277-6578 to schedule a free estimate and we’ll walk you through what your specific bathroom actually needs.
Key takeaways:
- Full bathroom remodels in Santa Monica: $9,000 – $28,000
- Walk-in shower installations: $4,500 – $12,000
- Exterior-wall work often requires a coastal development permit in Ocean Park and Sunset Park
- Marine-grade fixtures and sealed joints matter here more than inland
- Written price, written guarantee, 365-Day Done Right Promise on every job
Why Penhallow Remodeling Los Angeles Is Santa Monica’s Preferred Bathroom Remodeling Company

We show up in the window we gave you. That sounds simple, but if you’ve hired a contractor who ghosted for three weeks after demo day, you know it isn’t the norm. Penhallow Remodeling operates under The Kingswell Way, a standard in place since 2004 that requires a written price before any work starts, a real arrival window, a clean job site, and a written guarantee on every project. Trevor Nash leads our team, and he’d rather tell you a hard number over the phone than a soft range at the door.
Santa Monica homeowners deal with a specific set of headaches: moisture from the marine layer, older wood-frame construction, and permitting rules that don’t apply ten miles inland. We’ve remodeled bathrooms in Ocean Park, Sunset Park, and the Wilshire-Montana corridor, so we know what those coastal permits require and how to keep the job moving while they clear. Our customers don’t get a sales rep who vanishes after the contract is signed. They get the same crew from rough-in to finish, and a live person answers the phone 24/7 if you have a question at 8pm on a Sunday.
Every Penhallow location is independently owned and operated as part of the Kingswell family of companies. Dispatch for Santa Monica jobs is coordinated from our Los Angeles office, and crews serve Santa Monica locally.
Styles & brands we work with







Bathroom Remodeling Companies in Santa Monica
Bathroom Remodeling Companies in Santa Monica work inside a regulatory environment unlike anywhere else in Los Angeles County. The Coastal Zone boundary cuts through residential neighborhoods, which means a simple shower valve swap on an exterior wall can require discretionary review. That’s not true in Culver City. A Santa Monica homeowner needs a remodeling company that pulls the right permits the first time, specs materials that survive salt air, and puts the price in writing before demo starts.
Our Bathroom Remodeling team handles full remodels, walk-in showers, tub-to-shower conversions, vanities, tile, and fixtures. We also handle the plumbing rough-in work that older Santa Monica homes almost always need once the walls come open.
Coastal Permitting and Exterior Wall Work
If your bathroom touches an exterior wall and you’re in the Coastal Zone, changing a window or adding an exhaust fan can trigger a coastal development permit. We compile the submittal package for you, walk it through the planning department, and keep framing off the critical path while the review runs. Skipping this step gets homeowners a stop-work order and a failed inspection sign-off.
Salt Air and Substrate Preparation
We use cement board substrate (the moisture-resistant layer behind your tile) with fully taped and floated joints, then seal everything with a marine-grade topical membrane. Painter’s tape and mastic fail in Santa Monica’s marine layer. That one step is the difference between a shower that stays dry for twenty years and mold behind the tile in six.
Bathroom Renovation in Santa Monica

Bathroom Renovation in Santa Monica almost always exposes something behind the walls that predates current code. Homes built from the 1920s through the 1950s make up a large share of the city’s single-family stock, and many have never had their waste lines or vent stacks inspected since the day they were installed. A renovation here means opening walls, assessing what’s corroded, and replacing what’s needed before tile goes up. That’s not scope creep; it’s waterproofing reality in a coastal climate.
Working With Pre-1980 Framing
Older wood-frame structures in Santa Monica often have stud bays that don’t match modern plumbing fixture spacing. We reframe where necessary, sister joists when the subfloor shows rot, and bring the bathroom up to current shear wall standards if the remodel exposes a soft-story condition. You get a bathroom that functions today and a structure that survives the next quake.
Fixture and Material Selection for Coastal Homes
We spec marine-grade brass fixtures and cast-iron or acrylic tubs where standard chrome would pit within three years. Kohler and Moen carry lines designed for exactly this kind of environment, and we install them alongside Cambria or Caesarstone countertops where the warranty overlaps with our own. The product layers matter here. A cheap chrome faucet on Ocean Avenue looks fine for eight months and then starts showing corrosion.
Trusted Brands We Service in Santa Monica
We install and service bathroom fixtures and materials from recognized trade brands including KraftMaid and Wellborn cabinetry, Kohler and Moen fixtures, Cambria, Silestone and Caesarstone countertops, and Toto and Delta plumbing hardware. Because we order directly from suppliers who stock marine-grade finishes, Santa Monica customers aren’t waiting weeks for a backordered brass valve. We also work with prefab and panelized systems from Dvele and Mighty Buildings where a homeowner wants off-site precision with coastal-spec materials. Every product we install carries its own manufacturer warranty, layered alongside our 365-Day Done Right Promise.
Common Bathroom Remodeling Problems We See in Santa Monica Homes
- Corroded steel vent pipes and sink tailpieces: Decades of salt air eat through galvanized steel pipes hidden in wall cavities. When we open a subfloor for a new shower drain rough-in, the tailpiece often snaps at the wall fitting. We replace the entire waste and vent stack with cast iron before closing anything up.
- Failed waterproofing behind tile: The marine layer keeps joints damp longer than inland air does. Shower walls need a marine-grade topical membrane, not mastic and backer board alone. We tape and float every seam before the first tile is set.
- Stop-work orders on exhaust fan installations: Adding a bathroom fan on an exterior wall in the Coastal Zone requires a coastal development permit in Ocean Park and Sunset Park. Homeowners who skip it get a stop-work order and a failed inspection. We pull the permit before the hole is cut.
- Rot at the base of shower curbs and tub surrounds: Coastal fog means subfloor moisture lingers. We inspect the framing below the shower pan and replace any member that shows water damage before the waterproofing layer goes down. No new tile over rotten wood.
See the difference
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AfterPricing for Bathroom Remodeling in Santa Monica, CA
Here are the real numbers for Santa Monica’s market, not a range that floats depending on what we find after demo. A full bathroom remodel runs $9,000 – $28,000. A small bathroom remodel runs $5,000 – $12,000. A walk-in shower installation runs $4,500 – $12,000. A tub-to-shower conversion runs $3,500 – $10,000.
| Project Type | Price Range (Santa Monica) |
|---|---|
| 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 |
The coastal-spec version of the same job costs roughly 15 – 25% more than the inland spec. That gap reflects marine-grade fixtures, permitted exterior wall work, and cast-iron waste stack replacement rather than PVC in the walls. The cheap spec costs more within a decade, when the chrome pits and the vent stack fails behind a finished shower. We give you a written price before any work starts, and that number stays the number on the invoice. Call (213) 277-6578 for a free estimate and we’ll send you a line-item quote you can hold us to.
We Also Serve Cities Near Santa Monica
Penhallow Remodeling serves Santa Monica and nearby communities including Studio City, North Hollywood, Los Angeles, and Burbank. If you’re ten minutes inland, you’ll get the same written pricing, the same background-checked crew, and the same 365-Day Done Right Promise, applied to the building codes and conditions that apply where you live.
Serving Santa Monica, CA - Our Local Coverage Area
We’re based in the Santa Monica 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 Santa Monica
It depends on whether the valve is on an exterior wall and whether your home falls inside the Coastal Zone boundary. If it does, even a valve swap can require a coastal development permit with discretionary review, which adds weeks or months to the schedule. If the valve is on an interior wall, it’s generally over the counter. We check the parcel against the Coastal Zone map before we spec the job, so you’re not surprised by a stop-work order. Call (213) 277-6578 and we’ll check your address for free.
Coastal Zone permitting, mandatory seismic retrofit requirements, and marine-grade material specifications add 15 – 25% to the cost of an identical project in Santa Monica compared to Culver City. A bathroom that touches an exterior wall in Ocean Park may need a coastal development permit and discretionary review that would be over-the-counter ten miles inland. Salt air also forces us to spec fixtures and drainage materials that won’t corrode, which carries a premium. Our written quote breaks out every line item so you can see exactly where the coastal premium applies.
Yes. If your pre-1980 Santa Monica home is subject to the mandatory seismic retrofit ordinance and we open a wall that reveals a shear condition, we bring the affected framing up to current code before closing up. We don’t tile over it and pretend it isn’t there. We pull the permit for the shear wall upgrade as part of the bathroom remodel, which saves you a second inspection cycle and keeps the job moving under one contract. Call (213) 277-6578 if you think your home falls under the retrofit ordinance.
We use cement board substrate with every seam taped and floated, then apply a marine-grade topical waterproofing membrane before any tile is set. The marine layer keeps moisture in wall cavities longer here than inland, and standard mastic joints fail under that sustained humidity. We also replace any corroded vent stack or tailpiece we find during rough-in, because a hidden water leak behind a tiled wall is the mold source most remodels never address. Every waterproofing decision is covered in our written warranty and the 365-Day Done Right Promise.
You risk a stop-work order, a failed inspection sign-off, and a fine from the city. In the Coastal Zone, unpermitted exterior wall work is exactly what triggers the stop-work order, and it stays on the property record, which becomes a problem when you sell. We pull every permit the job needs before we start, and we don’t frame around the permit process to make the schedule look shorter. Call (213) 277-6578 for a free estimate, and we’ll tell you exactly which permits your specific address requires.
Call Penhallow Remodeling for Your Santa Monica Bathroom Remodel

If you want a written price before the first tile comes up, a crew that arrives in the window we gave, and a 365-Day Done Right Promise in writing on the day you sign, call (213) 277-6578. We’ll schedule a free estimate, walk your bathroom, check your Coastal Zone status, and hand you a line-item price you can hold us to. Trevor Nash leads our team, and he answers the phone like a person who does this for a living.
Written by Trevor Nash, Owner at Penhallow Remodeling Los Angeles, serving Santa Monica.











