Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Trusted Bathroom Remodeling for Walnut Creek Homeowners
Our Bathroom Remodeling in Walnut Creek typically costs $9,000-$28,000 for a full renovation, with most projects quoted within 48 hours and started within two to four weeks of contract signing. Rowan Construction Group has delivered over 4,000 projects since 2007, every one with a written price before work began and a documented photo record when the crew left. Call (510) 686-6370 to schedule your free estimate.
We’ve remodeled bathrooms in nearly every Walnut Creek neighborhood and nearby communities including Bathroom Remodeling in Lafayette, from the mid-century homes near Buena Vista to the newer builds in Arbolado and the hillside properties off Ygnacio Valley Road. The clay-heavy soils in this part of Contra Costa County shift seasonally, and we’ve seen what that means for tile substrates, shower pan membranes, and vanity anchoring. Our crews don’t guess at conditions; we document them with photos you receive before demolition starts. 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 agreed number.
What Our Bathroom Remodeling Service Includes
Full Bathroom Remodeling
A full bathroom remodeling project strips the room to substrate and rebuilds it with new plumbing rough-in, electrical, waterproofing, and finishes. In Walnut Creek, we typically see these projects when homeowners have lived with a layout that doesn’t work - a toilet visible from the hallway, a tub they haven’t used in years, or a single vanity serving two people. We measure the existing space, photograph the substrate conditions, and deliver a written flat price with line-item allowances for fixtures and tile before demolition begins.

Walk-In Showers & Shower Remodeling
Walk-in shower remodeling replaces an existing shower or tub-shower combination with a curbless or low-threshold enclosure. Walnut Creek’s aging housing stock includes many 1970s and 1980s bathrooms with fiberglass surrounds that have cracked at the corners or developed mold behind the walls. We remove the surround, inspect the wall framing and subfloor for moisture damage, and install a bonded waterproof membrane - Schluter-Kerdi or an equivalent liquid-applied system - before setting tile. The price for walk-in shower installation in Walnut Creek runs $4,500-$12,000 depending on size, tile selection, and whether we’re moving the drain.

Tub-to-Shower Conversion
A tub-to-shower conversion removes an existing bathtub and installs a shower in the same footprint, often with a glass enclosure. This is one of the most common requests we get from Walnut Creek homeowners whose families have outgrown the need for a tub or who want safer access. The conversion requires capping or relocating the tub spout plumbing, installing a new shower valve with anti-scald protection per California Plumbing Code, and ensuring the drain has adequate slope. Tub-to-shower conversion in Walnut Creek typically costs $3,500-$10,000.

Vanities
Vanity installation replaces or adds cabinetry, countertop, sink, and faucet in a bathroom. We work with KraftMaid and Wellborn cabinet lines, both of which offer moisture-resistant plywood box construction and soft-close hardware that holds up in Walnut Creek’s humidity swings between dry summers and winter rains. A single vanity replacement might run $800-$3,000 installed; a double vanity with stone top and undermount sinks will land higher. We verify wall framing can support the weight, especially in older homes with plaster-and-lath walls common in the Pleasant Hill Road corridor, not far from where we do Pleasant Hill Bathroom Remodeling.

Tile & Fixtures
Tile and fixture installation covers floor and wall tile, grout, and the plumbing fixtures that get connected after tile is set. Walnut Creek’s hard water - calcium levels run 120-180 ppm depending on whether you’re on EBMUD or a private well - eats through cheap cartridge faucets and leaves etching on natural stone. We specify porcelain or ceramic tile with a PEI rating of 3 or higher for floors, and we stock Kohler and Toto fixtures with replaceable ceramic disc cartridges. The tile work is warrantied for a full year under our 365-Day Done Right Promise.

Small Bathroom Remodels
Small bathroom remodeling - powder rooms, guest baths under 40 square feet - requires precise material ordering because waste factors are tighter and there’s no room for error in layout. We’ve remodeled small bathrooms in Walnut Creek’s condominium complexes near North Main Street and in the compact bungalows off Geary Road. A small bathroom remodel in Walnut Creek typically costs $5,000-$12,000, with the lower end covering cosmetic updates and the higher end including new plumbing and electrical.

Walk-In Shower Installation
Walk-in shower installation as a new addition, rather than a replacement, requires extending plumbing drains and supply lines, often through a slab foundation or crawl space. In Walnut Creek’s hillside homes near Larkey Park or the Briones boundary, we’ve had to pump concrete for shower pans where access is limited. The installation includes a preslope, shower pan liner or bonded membrane, curb construction, and waterproofing to the ceiling line. We pull permits through the City of Walnut Creek Building Division and schedule inspections at rough-in and final.

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.
Brands We Service for Bathroom Remodeling

We source and install across fifty-plus vetted brands, giving the written quote honest numbers rather than inflated ones. For bathroom remodeling in Walnut Creek, we regularly specify KraftMaid and Wellborn cabinetry - both offer framed and frameless construction with plywood boxes that resist swelling in humid bathroom environments, and both have distribution through Bay Area suppliers with lead times we can verify before we write your price. Cambria quartz countertops are another staple; they’re fabricated in Minnesota with consistent slab sizing, which means our Concord Bathroom Remodeling countertop fabricator can template with confidence and we can guarantee the installed price without a “subject to field measure” clause.
We also work with James Hardie backer board and trim in bathrooms where moisture management is critical, particularly in older Walnut Creek homes with exterior walls that see temperature swings. Whether you have Kohler, Toto, Delta, Moen, or any other fixture brand already selected, we can source it, install it, and warranty the work. If you haven’t chosen yet, we’ll bring samples to the estimate and note the allowance in writing so there’s no surprise when you decide.
Before
AfterSigns You Need Bathroom Remodeling Right Now
- Soft or stained drywall near the tub or shower. This indicates moisture has breached the waterproofing layer behind the tile or surround. In Walnut Creek’s climate, the damage accelerates in winter when windows stay closed and humidity builds; by spring, you may have mold in the wall cavity and compromised framing that requires structural repair beyond cosmetic tile work.
- Cracked or missing grout with loose tiles. Grout is the secondary waterproofing; when it fails, water reaches the substrate. We’ve pulled showers in the Rancho San Miguel neighborhood where the mud bed was saturated and the pan liner had deteriorated - a $300 regrout job ignored becomes a $7,000 gut renovation.
- A toilet that rocks or has visible rust stains at the base. The wax ring has failed, or the flange is corroded. Either way, sewer gas is entering the bathroom and subfloor moisture is likely. In homes built before 1980 in Walnut Creek, we often find the flange set too low or the subfloor rotted around it, requiring structural repair before a new toilet can be set properly.
- Single-pane windows or inadequate exhaust ventilation. Condensation on bathroom windows in January is a reliable indicator that moisture isn’t being evacuated. California Title 24 now requires exhaust fans rated for the room volume; older Walnut Creek bathrooms often lack this, and the resulting humidity degrades paint, corrobs fixtures, and promotes mold.
- The layout no longer functions for your household. This isn’t cosmetic dissatisfaction - it’s a measurable problem. A 5-foot by 8-foot bathroom with a tub, toilet, and single vanity serves a family of four poorly. We’ve reconfigured dozens of these in Walnut Creek’s 1960s ranch homes, often stealing 18 inches from an adjacent closet to create a double vanity or converting the tub to a shower to free floor space.
Our Bathroom Remodeling Process - Step by Step

- 1
On-site assessment and documentation. We arrive with a camera, moisture meter, and laser measure. We photograph the existing conditions - substrate, plumbing access, electrical panel location, window dimensions - and test for moisture in walls and floors. You receive these photos whether or not you hire us. The assessment takes 45-90 minutes depending on bathroom size and access.
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Written flat-price quote with line-item allowances. Within 48 hours, we deliver a written quote that specifies the scope, the materials allowance by category (tile, fixtures, cabinets, countertops), and the labor line items. The price is flat; if we underestimated the tile waste factor or the subfloor needs more patching than expected, we absorb it. Under The Haven Standard, Clause 1, this written price precedes any work.
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Permit application and material ordering. We pull permits through the City of Walnut Creek Building Division for any project involving plumbing or electrical modification. We order long-lead items - cabinets, custom shower glass, specialty tile - immediately upon contract signing so they arrive before demolition starts. You receive tracking information and delivery confirmations.
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Demolition, rough-in, and inspection. Our crew removes existing fixtures and finishes to substrate, protects adjacent living areas with dust barriers, and performs plumbing and electrical rough-in. We schedule the city inspection before closing walls. You receive photos of the rough-in work, including pipe sizing, vent routing, and electrical GFCI protection.
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Finish installation, final inspection, and documentation. We set tile, install fixtures, hang cabinets, and connect plumbing. A final city inspection verifies code compliance. We perform a walkthrough with you, demonstrate fixture operation, and deliver a printed warranty packet with your photo record, care instructions for materials, and our 365-Day Done Right Promise in writing.
How Much Does Bathroom Remodeling Cost in Walnut Creek?
A typical full bathroom remodel in Walnut Creek runs $9,000-$28,000. A small bathroom remodel costs $5,000-$12,000. Walk-in shower installation ranges from $4,500-$12,000. Tub-to-shower conversion is $3,500-$10,000. Bathroom vanity installation alone runs $800-$3,000. These ranges reflect 2024-2025 material and labor costs in Contra Costa County; your specific price depends on four factors.
Size and layout complexity. A straightforward 5×8 replacement with fixtures in existing locations lands at the lower end. Moving a toilet drain across a slab, adding a window, or expanding into an adjacent closet adds labor and material cost that we itemize in the written quote.
Material selections. Porcelain tile at $3 per square foot installed versus natural stone at $18 per square foot creates a real spread. We specify allowances in the quote so you can adjust up or down without renegotiating the whole contract. A $4,000 tile allowance with $3,200 actual spend returns $800 to you; overage requires a signed change order before we proceed.
Substrate condition. We can’t fully assess this until demolition, but our moisture meter and probe testing during the estimate identifies likely problems. A rotted subfloor adds $800-$2,500. Outdated electrical requiring panel upgrade adds more. We flag these possibilities in the quote so you’re not surprised.
Permit and inspection requirements. The City of Walnut Creek charges permit fees based on project valuation; for a $15,000 bathroom remodel, expect $400-$600 in permit costs. We pull permits as standard practice; unpermitted work creates disclosure problems at sale and insurance complications if water damage occurs.
To avoid overpaying, get multiple written quotes and compare line items, not just totals. Our Free Second Opinion service reviews any competitor’s written estimate at no charge - we’ll flag missing items, excessive allowances, or scope gaps. Call (510) 686-6370 to schedule your free estimate with written pricing.
| Service | Price Range in Walnut Creek |
|---|---|
| Full 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 |
Bathroom Remodeling Near Walnut Creek - Our Service Area

We remodel bathrooms throughout the Walnut Creek area and neighboring cities, typically scheduling estimates within two business days and starting projects within two to four weeks of contract. Our crews work regularly in Pleasant Hill, where the housing stock is similar to Walnut Creek’s 1960s-1980s ranch and split-level homes, and in Lafayette, where hillside access and larger lot sizes often mean longer material delivery routes. We also serve Concord, Danville, Martinez, San Ramon, Piedmont, Castro Valley, Oakland, Antioch, and Berkeley. Travel time from our Walnut Creek base to most of these cities is under 30 minutes, so your project isn’t delayed by crew logistics.
Serving Walnut Creek, CA - Our Local Coverage Area
We’re based in the Walnut Creek area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Bathroom Remodeling in Walnut Creek

Bathroom remodeling is the renovation of a bathroom’s fixtures, finishes, and sometimes layout, including plumbing, electrical, waterproofing, and cosmetic elements. At Rowan Construction Group, a bathroom remodel can range from a fixture-and-tile replacement to a complete gut renovation with relocated walls and new drainage. Every project receives a written scope and flat price before work begins.
A typical full bathroom remodel takes 3-5 weeks from demolition to final inspection, depending on material lead times and city inspection scheduling. Small bathroom remodels or tub-to-shower conversions may finish in 2-3 weeks. We provide a written timeline with your quote and update you weekly. Call (510) 686-6370 for an exact schedule based on your scope - estimates are free.
Full bathroom remodeling in Walnut Creek costs $9,000-$28,000; small bathrooms run $5,000-$12,000; walk-in shower installation is $4,500-$12,000. Your specific price depends on size, material selections, substrate condition, and whether you’re relocating plumbing or electrical. We deliver a written flat price with line-item allowances before any work starts. Call (510) 686-6370 for your free estimate.
Yes, we install and warranty Kohler, Toto, Delta, Moen, and virtually all residential plumbing fixture brands. We maintain supplier relationships with Ferguson and other Bay Area distributors so we can source your preferred fixtures without inflated handling charges. The fixture allowance in your written quote is based on actual distributor pricing, not guesswork.
We do not classify bathroom remodeling as emergency work; it is planned construction requiring permits, material ordering, and scheduled inspections. If you have an active water leak or sewage backup, we can refer you to an emergency plumber and schedule the remodel once the immediate damage is controlled. For planned projects, we aim to start within two to four weeks of contract signing.
We provide a 365-Day Done Right Promise: if anything we installed is not done right, we make it right at no charge. This covers workmanship, installation, and material defects we should have caught. The warranty is printed on every page of your project packet, backed by a terms page you can review, not an asterisk. We also pass through manufacturer warranties on fixtures, tile, and cabinets.
Clear personal items from the bathroom and adjacent areas, establish a temporary bathing arrangement if this is your only bathroom, and decide on your top three material priorities before the estimate so we can allocate the allowance accurately. We handle permit applications, dumpster placement, and utility coordination. You’ll receive a preparation checklist with your contract. Call (510) 686-6370 to schedule your free estimate and we’ll walk through preparation specific to your home.
Schedule Your Bathroom Remodeling Service in Walnut Creek Today
Call (510) 686-6370 to schedule your free estimate. You’ll receive a written flat price with line-item scope before any work starts, a documented photo record of every visit, and the 365-Day Done Right Promise backed by The Haven Standard. There’s no obligation to proceed, and we offer a Free Second Opinion on any competitor’s written estimate. A live person answers calls 24/7.
Written by Grant Rowan, Owner at Rowan Construction Group, serving Walnut Creek since 2007.







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