Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Bathroom Remodeling Across Cupertino
Bathroom remodeling in Cupertino typically runs $9,000-$28,000 for a full gut renovation, with most projects quoted in writing before work starts and completed within 4-8 weeks depending on permit timing. We’re familiar with Cupertino’s planning counter, its R1 massing rules, and the westside soil conditions that can change how a shower pan gets built. Call (650) 560-7228 to schedule your free estimate - we’ll bring a written price, not a pitch.
Our crews serve Cupertino from our San Francisco Bay Area office, and we’ve worked the full span of local housing stock: original 1960s ranch baths in Rancho Rinconada, 1970s split-levels off McClellan Road, and newer townhomes near Main Street. Cupertino’s school-district premium means buyers here often purchase for the lot and the address, then gut the existing structure. That dynamic creates a remodeling market where the bathroom is frequently part of a larger reconfiguration - a primary-suite expansion, a second-floor addition, or a full teardown-and-rebuild. We scope every job against the actual conditions we find, not a template.
Why Rowan Construction Group Redwood City Is Cupertino’s Preferred Bathroom Remodeling Company
We’ve delivered more than 4,000 projects since 2007, every one with a written price before any work started and a documented photo record when the crew left. In Cupertino specifically, that discipline matters because the city’s design-review process and R1 zoning massing rules routinely trip up contractors who work to Santa Clara or Sunnyvale standards. Our Bathroom Remodeling team has learned those rules the hard way so our customers don’t have to.
Our 365-Day Done Right Promise is printed on every page, backed by a terms page, not an asterisk. Under Clause 1 of The Haven Standard, the price is written before anyone starts. No change proceeds without a signed change order, which is the administrative discipline that has kept our projects within a few percent of the agreed cost across every trade we offer.
Background-checked, uniformed technicians arrive with a documented photo record included as standard, not an upgrade. A live person answers calls 24/7. And we offer a Free Second Opinion on any written estimate - bring a competitor’s quote and we’ll review it line by line at no charge.
Our Bathroom Remodeling Services in Cupertino

Full Bathroom Remodeling
A full bathroom remodel in Cupertino means stripping to studs or slab, addressing whatever the original 1950s-1980s construction hid, and rebuilding to current code. In Monta Vista and other westside neighborhoods, that often means dealing with slab-on-grade foundations, minimal original insulation, and electrical panels that won’t support modern load demands. We pull permits, coordinate inspections, and itemize every allowance - tile, fixtures, vanity top - so the number we quote is the number you pay, plus or minus a few percent.

Walk-In Showers & Shower Remodeling
Walk-in shower installation in Cupertino runs $4,500-$12,000 depending on size, glass spec, and whether we’re cutting into a slab or working over a framed subfloor. The westside foothill parcels can require soils-engineered details before the pan goes in, especially on original slab construction where expansive soil movement is a documented concern. We use bonded membranes and floating mortar beds where the conditions demand it, and we don’t set tile until the inspector signs off on the rough.

Tub-to-Shower Conversion
Converting a tub to a shower in Cupertino costs $3,500-$10,000. Many of the ranch homes here have original fiberglass or steel tubs set against a window wall with a 1.5-inch drain line that needs upsizing to 2-inch for a shower-only application. We check that in the initial scope, along with whether the existing vent stack meets current code. The alternative is discovering it mid-project and writing a change order neither of us wants.

Vanities, Tile & Fixtures
Vanity installation runs $800-$3,000; tile and fixture allowances vary with material selection. We source from fifty-plus vetted brands - Kohler and Toto fixtures, KraftMaid and Wellborn cabinets, Cambria and Caesarstone tops - so the written quote reflects honest numbers rather than inflated ones. In Cupertino’s competitive resale market, the fixture package matters. We itemize it. You choose.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
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AfterTrusted Brands We Service in Cupertino
We maintain sourcing relationships with KraftMaid, Wellborn, Kohler, Toto, Cambria, Caesarstone, and others, which means we can quote real prices on real products rather than placeholders that balloon later. For Cupertino customers, that depth matters because the school-district premium puts pressure on finish quality at resale. A generic vanity from a big-box store and a name-brand fixture package are not the same investment, and we don’t pretend they are. We write the spec, you approve it, and that number is locked before demolition starts.
Common Bathroom Remodeling Problems We See in Cupertino Homes

- Original copper rough-ins buried without proper drain slope. We see this routinely in 1970s Monta Vista ranches. The tub leaked slowly for years, softening the subfloor, and the drain line was never pitched correctly to begin with. We expose it, correct it, and get inspection sign-off before closing the walls.
- Second-floor additions that violate Cupertino’s R1 massing ratio. The ordinance caps second-floor area at 35% of the first-floor footprint. A bathroom expansion or primary-suite reconfiguration that pushes past that ratio gets bounced at planning, adding months. We calculate that before we draw, not after.
- Westside expansive-soil movement compromising slab-on-grade shower pans. Flat San Jose contractors sometimes miss this. Cupertino’s foothill geology requires bonded membranes and engineered details that standard pan installations don’t account for. We scope for it.
- Unpermitted “refresh” work that fails on resale. Tile over old tile, new vanity over original rough-in, no permit pulled. In Cupertino’s market, buyers and their inspectors look. We pull permits on every job, pass every inspection, and leave you documentation.
Pricing for Bathroom Remodeling in Cupertino, CA
Here’s what bathroom remodeling costs in Cupertino’s market:
| Service | 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 the number: whether we’re working over a slab or framed floor, whether the electrical panel needs upgrading, whether the project triggers Cupertino’s R1 massing review, and what the fixture and tile allowances specify. We itemize all of it in writing before work starts. No “call for a quote” - that’s not how we operate. Call (650) 560-7228 for your free estimate.
We Also Serve Cities Near Cupertino

Our crews work throughout the South Bay, including Cupertino and neighboring Saratoga, Sunnyvale, Mountain View, and Santa Clara. Each city has its own permitting rhythm and zoning quirks; we know the difference between Cupertino’s planning counter and Santa Clara’s because we work both regularly.
Serving Cupertino, CA - Our Local Coverage Area
We’re based in the Cupertino 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 - Bathroom Remodeling in Cupertino

City permits are required for any bathroom addition or enlargement in Cupertino, and the bid includes permit fees, plan-check deposits, and the inspection schedule. If the project touches the second floor, we also verify R1 massing compliance before submitting, because a plan that passes in neighboring cities can get bounced here. Call (650) 560-7228 and we’ll walk through what’s needed for your specific scope.
Cupertino’s western neighborhoods sit at the base of the Santa Cruz Mountains foothills, where expansive-soil conditions and slope-stability concerns are documented and scrutinized by city plan-checkers. Flat San Jose parcels don’t carry that same geological risk profile. We factor it into our scope when the address warrants it, typically adding an engineered detail for the shower pan and any grading work. Call (650) 560-7228 for a free estimate and we’ll tell you whether your property triggers that requirement.
Every written quote from Rowan Construction Group includes: a fixed price, a detailed scope of work, a fixture and material allowance schedule, a permit and inspection timeline, and the 365-Day Done Right Promise terms. Under The Haven Standard, no work proceeds on a change until the change order is signed. That discipline is why our projects finish within a few percent of the original number. Call (650) 560-7228 to review what your specific project requires.
A permit is legally required for any work involving plumbing rough-in, electrical, or structural modification, and Cupertino enforces it. More practically, unpermitted work fails on resale in this market - buyers and their inspectors check. We pull permits on every job, coordinate inspections, and leave you the signed documentation. The cost is built into the quote, not hidden. Call (650) 560-7228 for specifics on your project.
On outlying Cupertino parcels with septic systems, well setbacks, or limited driveway access, we scope equipment staging and material delivery before quoting. Longer hauls, smaller dump trucks, and hand-carry scenarios change the labor calculation, and we account for that in writing rather than discovering it mid-project. If your property has access constraints, mention them when you call (650) 560-7228 and we’ll build them into the estimate.
We gutted a 1970s ranch bath in Cupertino’s Monta Vista neighborhood down to the original slab-on-grade, where the old copper rough-in had been buried without a proper drain slope and the subfloor near the tub had softened from a slow pan leak. Because the westside parcel carries expansive-soil movement and the house sits near the foothills, we brought in a soils-engineered detail before setting the new shower pan, then laid a floating mortar bed over a bonded membrane. We closed it out with a KraftMaid vanity, a Kohler shower valve, and a frameless enclosure, and the county inspector signed off on the rough-in before the tile went up.
Ready to price your project? Call (650) 560-7228 to schedule your free estimate. We’ll bring a written scope, a fixed price, and a clear permit timeline - no enthusiasm required, just documentation.
Written by Grant Rowan, Owner at Rowan Construction Group, serving Cupertino since 2007.







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