Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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Before
AfterFast, Reliable Bathroom Remodeling Across Los Altos
A full bathroom remodel in Los Altos typically runs $9,000-$28,000, with most projects taking 3-6 weeks from permit to final inspection. Our crews serve Los Altos from our San Francisco Bay Area dispatch office, and we schedule free estimates within a few business days. Call (650) 405-3637 to book yours.
We’ve worked on enough Los Altos bathrooms to know the pattern: the home is a 1960s or 1970s ranch on a generous lot, the fixtures are original, and the question isn’t whether we’ll find surprises behind the walls - it’s which ones. Our Bathroom Remodeling team prices the visible work, builds allowances for what we can’t see, and stops for a signed change order before touching anything unexpected. That’s how we’ve kept projects within a few percent of the agreed price across 4,000-plus jobs since 2007.
Why Rowan Construction Group Sunnyvale Is Los Altos’s Preferred Bathroom Remodeling Company
Los Altos homeowners research contractors the way they research appliances: they read the three-star reviews, they want the price range on the page before they make contact, and they prefer a text confirmation to a phone promise. We built our process for exactly that customer.
Our local reputation in Los Altos rests on documentation, not enthusiasm. Every project gets a written flat price before work starts, a signed scope of work, and a documented photo record on every visit - included as standard, not an upgrade. Under Clause 1 of The Haven Standard, the price is written before anyone picks up a tool; under Clause 3, no change proceeds without a signed change order. That discipline is why our projects finish within a few percent of the number the customer agreed to.
Response time to Los Altos is typically a few business days for estimates, with crews dispatched from our Bay Area office. A live person answers calls 24/7, and every technician is background-checked and uniformed. We also 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.
The 365-Day Done Right Promise backs every job: if it’s not done right, we make it right. The guarantee is printed on every page and backed by a terms page, not an asterisk.
Our Bathroom Remodeling Services in Los Altos
Full Bathroom Remodeling
A full bathroom remodel in Los Altos means working within the footprint of a post-WWII ranch bath - typically 5′ x 8′ or 6′ x 9′ - while bringing every system up to current code. We strip to studs, inspect the framing and substrate, then rebuild with new plumbing rough-in, electrical, waterproofing, and finishes. In Los Altos, this almost always triggers GFCI upgrades, ventilation corrections, and sometimes seismic-related framing work that 1950s builders never considered. We build these allowances into the written quote, so the number you see accounts for the house you actually have.
Walk-In Showers & Shower Remodeling
Walk-in shower installation in Los Altos runs $4,500-$12,000, depending on whether we’re converting an existing footprint or expanding into adjacent space. The demand here is strong: aging original tubs in ranch homes, and buyers who want curbless or low-threshold entries. We install Kohler and Toto shower systems with frameless glass enclosures, and we waterproof to the current TCNA standard - critical in a climate where winter rainfall concentrates between November and April and clay-heavy Santa Clara Valley soils shift seasonally. A failed membrane in a 1960s bath often means the subfloor is compromised well past the drain line.
Tub-to-Shower Conversion
Tub-to-shower conversion in Los Altos is $3,500-$10,000, and it’s the project most likely to turn up hidden damage. In the Los Altos hills off Magdalena Avenue, our crew opened a 1962 ranch bath to convert the tub to a walk-in shower and found the subfloor soft from decades of failed waterproofing, plus ungrounded wiring behind the original tile. We stopped, wrote the repair as a change order with a clear price, and got sign-off before touching the rough-in; once approved, we rebuilt the subfloor, corrected the wiring, and installed a Kohler shower system with frameless glass, then walked the city inspector through the sign-off and closed out the punch list. That’s how we handle every surprise - in writing, approved, then executed.
Vanities, Tile & Fixtures
Vanity installation in Los Altos runs $800-$3,000, with tile and fixture packages scaled to the project scope. We source across fifty-plus vetted brands - Kohler and Toto fixtures, Cambria and Caesarstone countertops - so the written quote reflects honest numbers rather than inflated ones. For tile, we specify cement board or foam-core backer with a liquid-applied membrane, never greenboard or bare drywall behind wet-area tile. In Los Altos ranch homes, we’ve seen too many original baths where tile was installed directly over unbacked gypsum, and the substrate failed decades ago.
Small Bathroom Remodels
Small bathroom remodels in Los Altos - powder rooms, guest baths, compact en-suites in original ranch floor plans - run $5,000-$12,000. The constraint is spatial, not financial: working within 25-35 square feet while meeting current code for clearances, ventilation, and electrical. We maximize function without moving walls when possible, since structural modifications in these older homes can trigger seismic upgrade requirements that multiply the scope.
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.
Before
AfterTrusted Brands We Service in Los Altos
We maintain sourcing depth across fifty-plus vetted brands, and we stock local inventory for Los Altos projects to keep lead times short. For bathroom work, that means Kohler and Toto fixtures, Cambria and Caesarstone countertops, and frameless glass hardware from PGT and CWS. We don’t inflate quotes with premium-brand markups - the written price reflects the actual material cost, and the customer sees the brand, the spec, and the allowance line-by-line before work starts.
Common Bathroom Remodeling Problems We See in Los Altos Homes
- Ungrounded or aluminum-era wiring behind original tile. Many Los Altos ranch homes were built with two-wire systems or aluminum branch circuits that don’t meet current NEC requirements. Once walls open for a remodel, the permit triggers full electrical upgrade to GFCI-protected grounded circuits - work that wasn’t visible when we bid the tile and fixtures.
- Failed waterproofing and rotted subfloors. Original tile installed over greenboard or a failed shower pan means moisture has been migrating into the subfloor for decades. We’ve opened baths where the damage extended three feet past the drain, requiring structural subfloor replacement before any finish work could begin.
- Undersized or termite-damaged framing. Post-WWII ranch construction often used nominal lumber and minimal fastening that doesn’t meet current span tables or seismic requirements. Opening walls for plumbing relocation frequently reveals damaged or inadequate studs that need sistering or replacement - work a surface-level bid never accounts for.
- Permit-triggered code upgrades the original scope didn’t include. Los Altos operates under Santa Clara County building codes with local amendments, and bathroom permits routinely require ventilation sizing corrections, drain line upgrades, and seismic-related framing improvements. Contractors who don’t build these allowances into the original quote deliver change orders the homeowner never agreed to in writing.
Pricing for Bathroom Remodeling in Los Altos, CA
These are the price ranges we deliver in writing before any work starts on bathroom projects in Los Altos. Every quote is flat-priced with a written scope and a written warranty.
| Service | Price Range in Los Altos |
|---|---|
| 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: the condition of the substrate and framing behind the walls, whether plumbing stays in place or relocates, fixture and material selections, and the extent of code upgrades the permit triggers. We inspect before we quote, build allowances for concealed conditions into the contract, and price any surprise in writing with a signed change order before work continues. Call (650) 405-3637 for your free estimate - we’ll review your bath, explain what we expect to find, and deliver a written price you can screenshot and compare.
We Also Serve Cities Near Los Altos
Our crews work throughout the San Francisco Bay Area, and we regularly complete Bathroom Remodeling in Los Altos and neighboring communities. We also serve Mountain View, Palo Alto, Menlo Park, and Sunnyvale with the same written-price process and documented photo record on every visit.
Serving Los Altos, CA - Our Local Coverage Area
We’re based in the Los Altos 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 Los Altos
Because Los Altos bathroom remodels almost always involve code upgrades that neighboring cities’ newer housing stock doesn’t trigger. The dominant housing here is 1950-1975 ranch construction with post-WWII wiring, minimal or failed waterproofing, and framing that predates modern seismic standards. Once walls open and the permit is active, inspectors require GFCI electrical upgrades, ventilation corrections, and sometimes seismic-related framing improvements - work that wasn’t visible during a surface-level walkthrough. We build these allowances into our written quotes, so the number you see accounts for the house you have, not the house we wish we had. Call (650) 405-3637 for an exact quote - estimates are free.
Yes. Any bathroom remodel in Los Altos that involves plumbing, electrical, or structural work requires a Santa Clara County building permit, and the city may layer additional review for projects visible from the street or affecting the building envelope. The permit triggers inspections for rough plumbing, electrical, insulation, and final sign-off - and those inspections enforce current code, not the code in force when the home was built. We pull permits as standard practice, include the permit cost in the written quote, and coordinate all inspections as part of our scope. Call (650) 405-3637 to discuss your project - estimates are free.
Only if you’re keeping the home for at least 3-5 years. Los Altos is one of California’s most active teardown markets: with land values alone often exceeding $2M, many 1950s-1975 ranch homes are demolished and replaced with custom ground-up builds rather than remodeled. If your timeline to teardown is shorter than three years, a bathroom remodel rarely returns its cost. If you’re staying, or if the home is in a pocket of older construction where teardown economics don’t pencil out, a well-built bath remodel with current waterproofing and code-compliant systems adds functional value and prevents further damage. We offer a Free Second Opinion on any written estimate, including builder bids for teardown - call (650) 405-3637 to review your options.
Typically: failed waterproofing, rotted subfloor, and ungrounded wiring. Original tubs in 1950s-1970s Los Altos ranches were installed with minimal membrane protection and often wired with two-wire systems that don’t meet current NEC requirements. When we remove the tub and open the surround, we find moisture damage extending past the drain line and electrical that must be upgraded to GFCI-protected grounded circuits. We stop, document with photos, write a change order with a clear price, and get your signature before continuing. That discipline - inspect first, price in writing, approve before proceeding - is how we avoid the endless change orders that plague bathroom remodels in this market. Call (650) 405-3637 for a free estimate on your conversion.
We build allowances into the written contract for concealed conditions, and we stop work for a signed change order before touching anything unexpected. Under The Haven Standard, Clause 3 requires written approval for any scope change - no exceptions. In practice, that means: we inspect before quoting, we photograph and document what we find, we include line-item allowances for substrate, framing, and electrical conditions we suspect but cannot verify, and if we open walls and find damage, we present a priced repair with photos and get your signature before proceeding. The alternative - proceeding verbally and billing later - is how bathroom remodels go off the rails. Call (650) 405-3637 to schedule your free estimate and review our contract format.
Written by Grant Rowan, Owner at Rowan Construction Group, serving Los Altos and the San Francisco Bay Area since 2007.