Why Your Out-of-State Showerhead Is Not Legal in California
California caps showerheads at 1.8 gallons per minute, basin taps at 1.2 and toilets at 1.28 per flush. All tighter than federal, and it catches online orders.
Service
Walk-In Shower Conversion in Mountain View
Pulling an unused tub or a tired fiberglass enclosure and building a properly waterproofed tile shower.
Converting a tub or a dated fiberglass surround into a tiled walk-in shower is the most requested single-scope bathroom project in Mountain View, and in a 1950s tract house it is often the only change the room needs. The old unit comes out, the framing and subfloor get inspected and corrected, a waterproofing membrane goes on, tile is set to a verified slope, and a glass panel or enclosure finishes it. Expect $12,000 to $28,000 depending on size, tile and glass, and three to five weeks. Nearly every failure in a shower traces back to the waterproofing layer, which is invisible the day the job is finished and decisive fifteen years later.
What the scope covers
- Removal and disposal of the old tub or fiberglass enclosure, cast iron included
- Framing and subfloor inspection with rot and out-of-plumb walls corrected before waterproofing
- Bonded waterproofing membrane, sheet or liquid, installed to the manufacturer specification
- Slope to drain verified by flood test before any tile is set
- Linear or point drain, with curbless options where the floor structure allows
- Porcelain, ceramic or stone tile set with the correct mortar for substrate and tile type
- New pressure-balanced or thermostatic shower valve
- Tempered glass panel or enclosure, measured after tile rather than before
Get a free quote for this work
A local remodeler walks the room with you, checks what is behind the wall and under the floor, and follows up with a written price broken down by scope.
Shower Conversion questions
The things homeowners ask most often before committing to shower conversion work.
+ What does a walk-in shower conversion cost in Mountain View?
Most conversions run $12,000 to $28,000. A standard 60 inch alcove with a curb, mid-grade porcelain and a fixed glass panel sits at $12,000 to $18,000. A larger walk-in with a linear drain, large-format tile and a full frameless enclosure runs $20,000 to $28,000. Going curbless adds $3,000 to $6,000, and more on a slab foundation because the concrete has to be cut and recessed rather than the pan dropped between joists. Frameless glass alone can be $7,000 to $9,000 on a high-end job.
+ How long does a shower conversion take?
Three to five weeks in most cases, and the calendar is not all labor. Demolition and rough plumbing take a few days, then the plumbing inspection has to be scheduled, then waterproofing needs its cure time before tile, then thinset and grout need theirs before glass can be measured. Glass is fabricated to the finished opening, so it is ordered after tile is complete and typically takes another one to two weeks to arrive.
+ Sheet membrane or liquid waterproofing, which is better?
Both work when installed correctly, and both fail when they are not. A bonded sheet membrane over foam board goes on at a controlled thickness and is easy to inspect, which is why most tile setters trained in the last fifteen years default to it. A liquid membrane rolled over cement board costs less in material but depends entirely on getting the film thickness right across the whole surface, corners and changes of plane included. On any shower above a basic budget the sheet system is the safer specification. What matters more than the brand is that the installer works to that system’s instructions rather than mixing components from three of them.
+ Should I keep a tub somewhere in the house?
Generally yes, at least one. Buyers with small children look for a tub, and a house with none is a narrower listing. If there are two or more bathrooms, converting a secondary one to a walk-in shower has no real resale downside. If it is the only bathroom, which happens in the smaller older houses near downtown, a tub with a proper tiled surround is usually the wiser build.
+ Does a shower conversion need a permit?
Yes, in practice always, because the shower valve is being replaced and the drain is usually being altered. That is plumbing work and it is inspected. It is also worth noting the permit requirement is what disqualifies almost every bathroom job from California’s small-works licensing exemption, which only applies where no permit is required at all.
Shower Conversion across the valley
The same work runs across the north Santa Clara Valley and the lower Peninsula. Each area page covers the housing stock and the permit process for that specific city.
- Shower Conversion in Mountain View
- Shower Conversion in Palo Alto
- Shower Conversion in Los Altos
- Shower Conversion in Los Altos Hills
- Shower Conversion in Sunnyvale
- Shower Conversion in Cupertino
- Shower Conversion in Santa Clara
- Shower Conversion in Menlo Park
- Shower Conversion in Atherton
- Shower Conversion in Saratoga
- Shower Conversion in Campbell
- Shower Conversion in Redwood City
Further reading
Other scopes worth pricing
Where a house has two bathrooms due for work, doing both under one permit and one mobilisation is usually cheaper than two separate projects a year apart, and it is worth asking for both prices at the same walkthrough.
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Full Bathroom Remodel
The room taken back to studs and rebuilt, typically eight to twelve weeks of construction once materials land
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Primary Bathroom Remodel
Larger suite work: separate shower and tub, double vanity, the projects where design time earns its keep
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Small Bathroom and Powder Room Remodel
Hall baths and powder rooms in the 35 to 55 square foot range, where every layout decision shows
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Eichler and Mid-Century Bathrooms
Post-and-beam houses with radiant slabs and no attic, where a standard bathroom scope does not apply
Start your bathroom project
Call (650) 966-5276, or send the details through the form and a local remodeler prices the job up. The quote is free either way.