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Fast, Reliable Bathroom Remodeling Across Los Altos Hills
A full bathroom remodel in Los Altos Hills typically costs between $9,000 and $28,000, with small bathrooms running $5,000 to $12,000, and walk-in shower installations landing between $4,500 and $12,000. Most projects take two to four weeks depending on whether you’re moving plumbing, which brings us to the one thing that makes remodeling here different from anywhere else we work: your well and septic system. Before any tile goes up, we verify both. Call (803) 680-2547 and we’ll walk you through the full sequence, including the checks specific to your property.
We know Los Altos Hills because we work here. The hillside lots off Page Mill Road and Elena Road, the private drives, the fact that nearly every home sits on its own water and waste system. That local knowledge shapes how we scope, price, and schedule your project. You won’t wait on a contractor who doesn’t understand the town’s grading rules or septic realities.
Why Mason Remodeling Is Los Altos Hills’s Preferred Bathroom Remodeling Company

Homeowners in Los Altos Hills keep choosing us for one reason that matters more than any showroom sample: we put the full price in writing before any work starts. Not an estimate that drifts upward. A written price. Isaac Pruett, who leads our team, insists on it for every project, and the Bathroom Remodeling crew follows the same protocol on every Los Altos Hills job. You’ll know the name and see the photo of each technician coming to your home before they arrive, and they’ll show a photo ID badge at the door. That’s the Threshold Standard, and it’s not optional.
We also back every completed project with the 365-Day Done Right Promise. If something isn’t right within a year of completion, we make it right at no cost to you. The guarantee terms are written and specific: covered items, exclusions, duration. You get it with your written price, not after the fact.
And when you call (803) 680-2547, a live person answers. Every time. No call tree, no voicemail loop, no waiting until Monday. We coordinate scheduling from our San Francisco Bay Area office and serve Los Altos Hills with local crews who know the terrain.
Styles & brands we work with







Bathroom Remodeling Contractor in Los Altos Hills
A Bathroom Remodeling Contractor in Los Altos Hills does more than swap fixtures. Here, the work often starts below the floor and behind the walls. We check the septic capacity before adding any fixture, because adding a second shower or a freestanding tub to a private system sized for the original fixture count can overload it. We check well-water pressure when you’re planning a rain shower head or body spray system, since many Hills properties run on pressure tanks that max out below what those fixtures demand. Then we get into the build: demolition, rough-in, waterproofing, tile, cabinetry, glass, finish plumbing, and the town’s inspection sequence.
Permits and the Inspection Sequence
Los Altos Hills requires permits for bathroom remodels that change plumbing, electrical, or structural conditions. Expect a plumbing rough-in inspection, an electrical inspection if circuits move or get added, and a final building inspection. We pull every permit and schedule every inspection. You won’t chase the town, and we don’t ask you to.
What You Should Budget Before You Call
A primary bath remodel in Los Altos Hills runs $9,000 to $28,000. The spread comes down to whether you move the toilet or shower drain, whether the subfloor needs reframing around an old cast-iron tub, and what fixtures you choose. We use specification-grade partners: KraftMaid and Wellborn for cabinetry, Cambria and Silestone for surfaces, Kohler and Moen for fixtures. You get a line-item written price so the numbers make sense before you sign anything.
Walk In Shower in Los Altos Hills

A Walk In Shower in Los Altos Hills costs $4,500 to $12,000 installed, and the biggest variable is what’s under the old tub or shower pan. The curbless look is popular on hillside lots because the slab or subfloor is already being opened for drain work, but that’s exactly where the well-and-septic math gets real. If you’re replacing a tub with a walk-in and adding a second showerhead, we verify the septic capacity before we commit to the scope.
Frameless Glass and Waterproofing
Frameless glass enclosures start around $1,200 to $2,500 as part of a shower remodel, depending on panel count and hardware. The waterproofing underneath is the part you don’t see and the part that matters most. We use Schluter strip, the metal trim that seals the edge where tile meets flooring, and we check the slope and drain line before any tile is set.
Well Pressure and Shower Performance
Many Los Altos Hills homes run on private wells with pressure tanks sized years ago for modest showerheads. A new rain shower or body spray array can exceed what the existing pump delivers. We test the pressure before rough-in, and if the numbers don’t support your fixture choices, we tell you on the front end, with a written price for the pump or pressure tank upgrade if one is needed.
Trusted Brands We Service in Los Altos Hills
We install and service fixtures and finishes from Kohler, Moen, Toto, Grohe, KraftMaid, Wellborn, Cambria, Silestone, and Caesarstone. For Los Altos Hills customers, that means one point of contact when a valve cartridge fails or a vanity door needs adjustment. We also coordinate with the prefab and accessory-dwelling specialists working in the hills: Abodu, Cover, Dvele, and Mighty Buildings. If your lot’s accessory unit needs its bathroom pre-wired or its shower rough-in matched to the main house’s well output, we handle the connection cleanly.
See the difference
Before
After
Before
After
Before
AfterCommon Bathroom Remodeling Problems We See in Los Altos Hills Homes
- Hidden subfloor rot from slow tub or toilet leaks. On a hillside property off Robleda Road, we opened a 1980s primary bath and found soft subfloor around the original cast-iron tub, water damage that had been hidden under tile for years. We reframed the wet zone, ran new PEX rough-in for a Kohler shower valve and a Moen handheld, and set a Wellborn vanity with a Cambria quartz top. Final inspection passed eleven days in, with a two-item punch list, both cosmetic.
- Septic systems sized for fewer fixtures. Adding a second shower or a freestanding tub without a capacity check can overload the leach field. In some cases, the septic tank itself needs upsizing before the building permit will clear.
- Well pressure that can’t feed multiple shower functions. A rain head plus handheld plus body sprays can trip a well pump that was never designed for that demand. We catch it before rough-in, not after the tile is up.
- Hillside grading and drainage limits. Expanding a bathroom footprint or adding a window on a downhill lot means the town’s slope and impervious-surface rules apply. We build that into the plan and the permit set so you don’t get a stop-work notice mid-project.
Pricing for Bathroom Remodeling in Los Altos Hills, CA
Here are the line-item ranges we write into Los Altos Hills proposals. These are real figures for this market, shaped by hillside access, septic and well considerations, and the town’s permit process.
| Project | 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 |
| Bathroom Vanity Installation | $800 – $3,000 |
What moves a Los Altos Hills bathroom remodel inside these ranges: the condition of the subfloor when we open the walls, whether your septic system has capacity for the fixture changes you want, whether your well pump can handle the shower you’re planning, and what level of cabinetry and surface you choose. Every one of these is written into your price before work starts. The price doesn’t change unless the scope changes, and if the scope changes, you approve the new written price first. Free estimates include a walkthrough, measurements, and a written proposal at your home in Los Altos Hills. Call (803) 680-2547 to schedule yours.
We Also Serve Cities Near Los Altos Hills
Mason Remodeling brings the same written pricing, Threshold Standard crew verification, and 365-Day Done Right Promise to Los Angeles, San Diego, San Jose, and San Francisco. If you own property outside the Hills or know someone planning a remodel nearby, the process is identical: named technician, verified background, written price, written guarantee.
Serving Los Altos Hills, CA - Our Local Coverage Area
We’re based in the Los Altos Hills 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 Los Altos Hills
Yes. Any bathroom remodel in Los Altos Hills that changes plumbing, electrical, or structural conditions requires a town permit. The typical sequence is a plumbing rough-in inspection, an electrical inspection if circuits move or get added, and a final building inspection. We pull the permits and schedule every inspection as part of the written price. Call (803) 680-2547 and we’ll confirm exactly which inspections your project triggers.
A straightforward bathroom remodel in Los Altos Hills takes two to three weeks. A larger job with subfloor reframing, a septic capacity check, well pump work, or window changes that trigger hillside grading review takes three to four weeks or longer, since the town reviews those changes separately from the standard permit set. We give you a calendar with your written price so you know which weeks the crew is in your home.
The three biggest cost drivers here are hidden subfloor or drain damage found at demolition, septic capacity limits that force a design change if you’re adding fixtures, and well pressure upgrades if you’re installing high-flow shower fixtures. Finish choices push the number within the range. Need an exact figure for your home? Call (803) 680-2547 for a free written estimate.
An allowance is a dollar figure a contractor sets aside in the estimate for a finish you haven’t picked yet, like tile or a vanity. In Los Altos Hills, we avoid broad allowances because hillside access and septic requirements already put enough variables in play. We’d rather give you a written price with the actual fixtures and finishes chosen, so the number you approve is the number you pay. If you do choose an allowance item, we state the allowance amount and the exact selection deadline in the written price.
Maybe, but only after a septic capacity check and a well pressure test. Many Los Altos Hills septic systems were sized for the original fixture count, and adding a second shower or a freestanding tub can overload the leach field. The well pump is the second constraint. We run both checks before we finalize the scope, and if an upgrade is needed, it’s written into your price before any work begins. Call (803) 680-2547 to schedule the assessment.
Written by Isaac Pruett, Owner at Mason Remodeling, serving Los Altos Hills and the surrounding Bay Area since 2004.










