







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Bathroom Remodeling Across Mountain View
Bathroom remodeling in Mountain View, CA typically runs $9,000 – $28,000 for a full gut-and-rebuild, with walk-in shower installations landing between $4,500 and $12,000 depending on plumbing and waterproofing scope. If you live in a 1950s – 1970s ranch or Eichler on a concrete slab, expect the number to shift upward once we open the walls and see what the original underslab cast-iron drain line looks like. We plan for that on day one. Call (669) 274-2362 to schedule a free estimate, and we’ll give you a written price before any work starts.

We’re Penhallow Remodeling San Jose, and our crews serve Mountain View homes from the San Francisco Bay Area office. You get background-checked, uniformed technicians, a live person on the phone 24/7, and a written guarantee on every project. Trevor Nash leads the team, and the standard never changes: the number we give you is the number on the invoice.
Why Penhallow Remodeling San Jose Is Mountain View’s Preferred Bathroom Remodeling Company

Mountain View homeowners call us because we know what’s under their floors. Homes in Old Mountain View, Waverly Park, and the Cuesta Park area were built in a specific era, and remodel work here follows patterns you don’t see in newer construction. We plan for underslab plumbing from the first walkthrough, not the third day of demo.
The Kingswell standard drives everything we do. Since 2004, the Kingswell family of companies has required a written price before any work starts, a real arrival window, a clean job site, and a written guarantee on every project. Our 365-Day Done Right Promise means if something fails inside the guarantee period, we come back and fix it at no charge. That’s in writing. If a repair fails, you get a free second visit, no service call fee and no re-inspection charge. That’s also in writing.
A live person answers our phone 24/7. Not an answering service. A person who can pull up your project and give you a straight answer. For Bathroom Remodeling work in Mountain View, that matters, because questions come up after crews leave and we want the answer to be one call away.
Styles & brands we work with







Bathroom Remodeling Contractor in Mountain View
A Bathroom Remodeling Contractor in Mountain View has to plan around concrete slab foundations, aging underslab drain lines, and the city’s permitting process. Most mid-century homes here were built without a dedicated 20-amp circuit to the bathroom, and adding a curbless walk-in shower often triggers a load-bearing wall header change plus an electrical upgrade. We scope that before we quote, not after we open the wall. Full bathroom remodels in Mountain View run $9,000 – $28,000, and the spread depends on whether we’re keeping the original footprint or moving plumbing.
Planning Around Existing Slab Plumbing
Many original 1950s – 1970s Mountain View bathrooms sit over underslab cast-iron drains. Cast iron corrodes from the inside, and once we expose the line during a remodel, it’s common to find it collapsed or nearly sealed shut. If your home still has the original drains, factor $2,000 – $5,000 for replacement before finish work begins.
When a Mountain View Homeowner Should Plan for Extra Scope
If your bathroom is on a concrete slab and you want to move the toilet or shower drain more than a few inches, that means cutting the slab and re-routing the waste line. Doing it now, while the room is already open, costs a fraction of what it costs to tear out a finished bathroom later. We pull the permit, the city inspects the rough-in, and the work gets signed off before tile goes down.
Walk In Shower in Mountain View
A Walk In Shower in Mountain View works beautifully in mid-century homes, but the curbless version needs careful planning when the floor is a concrete slab. Radiant heat embedded in Eichler slabs is a real concern: a drain or supply rough-in can puncture the heating loop and turn a shower project into a slab repair. We scope the hydronic lines before cutting. Walk-in shower installation in Mountain View runs $4,500 – $12,000, and the upper end typically includes a linear drain, full waterproofing to code, and a frameless glass enclosure.
Curbless Showers on Slab Foundations
In a home with wood-framed floors, a curbless shower means recessing the joists. On a Mountain View slab, it means cutting concrete to slope the shower pan. Both are doable. The slab version costs more and requires a structural look at what’s beneath the concrete. We don’t guess at that.

Shower Valves and Fixture Upgrades
Original valves in 1960s Mountain View homes are often worn past the point of repair. When we open the wall for a shower replacement, swapping in a Moen or Kohler valve is the right time to do it. The alternative is closing the wall, waiting six months, and opening it again. That’s a second demolition and a second tile job, and there’s no reason to pay for it twice.
Trusted Brands We Service in Mountain View
We install products from manufacturers that stand behind their warranties, because our 365-Day Done Right Promise has to sit on top of a solid product. Kohler and Moen for fixtures, Cambria, Silestone, and Caesarstone for countertops, and KraftMaid or Wellborn for vanities. Cambria quartz carries its own lifetime warranty alongside ours, which means if the surface fails and we’re gone, you still have recourse. For Mountain View customers, we stock common replacement parts locally so warranty follow-ups don’t stall while parts ship across the country.
See the difference
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AfterCommon Bathroom Remodeling Problems We See in Mountain View Homes
- Underslab cast-iron drain lines that collapse during demo. Homes built from the 1950s through the 1970s in Mountain View almost always used cast iron under the slab. It corrodes from the inside, and by the time we open the bathroom, the line can be collapsed or riddled with cracks. Budget $2,000 – $5,000 for replacement if yours is original.
- Eichler radiant heating loops punctured during rough-in. Many Eichler homes in Mountain View have hydronic heating embedded in the concrete slab. Cutting into that slab for a drain or supply line can sever the loop and kill heat to that zone. We locate the lines first and adjust the plumbing plan to avoid them.
- No dedicated 20-amp circuit in the original bathroom. Mountain View’s ranch homes were built before hair dryers, heated floors, and electric towel warmers. Adding a curbless shower or heated floor often requires an electrical upgrade that wasn’t in the original quote from contractors who didn’t check.
- Small original bathrooms that trigger header changes. Many ranch homes in Mountain View have a compact hall bath tucked next to a load-bearing wall. Widening the opening for a walk-in shower can mean adding a header beam. It’s not a surprise if it’s planned; it’s a change order if it’s not.
Pricing for Bathroom Remodeling in Mountain View, CA
Here’s what we quote, in writing, before work starts. These are Mountain View market numbers, not national averages.
| Project | Price Range |
|---|---|
| Bathroom Remodel | $9,000 – $28,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Bathroom Vanity Installation | $800 – $3,000 |
The big swing in a Mountain View bathroom remodel comes from three things. First, whether we’re replacing underslab plumbing. Second, whether you want a curbless walk-in shower, which means cutting and sloping the slab. Third, your finishes: a stock vanity with a cultured marble top costs far less than a custom Wellborn vanity with Cambria quartz. We build the line-item quote around those choices. Call (669) 274-2362 for a free estimate, and we’ll put the number in writing before you commit to anything.
We Also Serve Cities Near Mountain View
Our crews work throughout Mountain View and the surrounding communities. We schedule bathroom remodels in Los Altos, Stanford, Cupertino, and Santa Clara, and we plan those jobs with the same written-price standard. If you’re one town over and wondering whether we cover your neighborhood, the answer is almost certainly yes. Call and ask.
Serving Mountain View, CA - Our Local Coverage Area
We’re based in the Mountain View 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 Mountain View
Slow drains that no amount of snaking fixes, gurgling from the toilet when the sink runs, or a faint sewage smell that comes and goes are the three classic signs of a failing underslab cast-iron line. The only way to know for sure is a camera inspection before you sign a remodel contract. We include that inspection in our estimate process for Mountain View slab homes. Call (669) 274-2362 and we’ll schedule it.
Yes, but it requires locating the hydronic heating lines before any concrete is cut. We map the loops, adjust the shower drain location to avoid them where possible, and when cutting is unavoidable, we cap and re-route the affected loop so the rest of the zone still heats. This is standard planning on Eichler remodels in Mountain View, not an add-on. Get a written price first, call (669) 274-2362.
Mountain View inspects the rough-in plumbing, the shower pan waterproofing before tile, and the final electrical and plumbing connections. If you’re moving a wall or changing a header, the framing inspection happens before drywall. We schedule every inspection, meet the inspector on site, and don’t close a wall until it’s signed off. That’s part of the permit we pull on every remodel.
A 1950s ranch on a concrete slab often has plumbing, electrical, and framing that predates current code. When we open that bathroom, the city wants the exposed work brought up to today’s standard. A new addition gets built to current code from the start, so there’s less retroactive correction. We plan for those corrections in the written estimate so the inspection doesn’t surprise you with a change order.
For a mid-century master bath with Cambria quartz countertops, a Kohler or Moen walk-in shower, new tile, and updated electrical, a realistic Mountain View budget is $18,000 – $28,000. The upper end includes underslab plumbing replacement and a curbless shower. We’ll give you a line-item written quote so you can see exactly where every dollar goes. Call (669) 274-2362 to schedule your free estimate.
Written by Trevor Nash, Owner at Penhallow Remodeling San Jose, serving Mountain View and the surrounding Bay Area.











