Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Bathroom Remodeling Across San Ramon
A full bathroom remodel in San Ramon typically runs $9,000-$28,000, with most projects quoted as a flat written price before any work starts. We’re Rowan Construction Group, and our crews serve San Ramon directly from our Bay Area dispatch office, carrying the same documented process we’ve applied to 4,000-plus projects since 2007. Call (510) 686-6370 to schedule your free estimate.
San Ramon’s master-planned communities - Gale Ranch, Windemere, Crow Canyon, Dougherty Valley - hold thousands of homes built between 1985 and 2010 with builder-grade baths now aging into replacement. We’ve worked in enough of them to know which original fiberglass shower pans are cracking, which vanity cabinets are delaminating, and which HOA architectural review committees will flag a vent location before the permit is even pulled. That local specificity keeps our projects on schedule and within a few percent of the written quote.
Why Rowan Construction Group Walnut Creek Is San Ramon’s Preferred Bathroom Remodeling Company
Our reputation in San Ramon rests on documentation, not promises. Every project receives a written flat price and written scope before demolition begins, plus a documented photo record on every visit that the homeowner keeps. Under Clause 1 of The Haven Standard, no work proceeds until the price is in writing; under our 365-Day Done Right Promise, if it is not done right, we make it right with terms you can read, not a handshake.
San Ramon homeowners research contractors the way they research appliances, and we respect that. Bring any competitor’s written estimate and we’ll review it line by line at no charge - our Free Second Opinion is a standing offer. Crews are background-checked and uniformed; a live person answers calls 24/7. The license number appears on every page because verification matters.
Response time to San Ramon is same-day for initial consultations, with scheduling coordinated from our Bay Area office. We know the San Ramon Valley’s permit process, the Contra Costa County inspection cycle, and the specific seismic detailing the Calaveras Fault corridor demands on every permitted bath remodel. Contractors unfamiliar with this valley routinely underestimate both the seismic code and the HOA layer that sits on top of it.
Our Bathroom Remodeling Services in San Ramon

Full Bathroom Remodeling
A full gut-and-rebuild in San Ramon’s 1985-2010 stock typically means removing a 5×8 or 6×9 builder-grade bath with fiberglass surround, pressboard vanity, and single-threshold shower pan. We replace with moisture-resistant cement board (backer board), a liquid-applied or sheet membrane waterproofing system, and finishes selected from our fifty-plus vetted brands. In Gale Ranch and Windemere, we always verify header sizing before opening walls for walk-in shower conversions - these high-volume builder frames often lack the structural capacity for the open-concept layouts homeowners want. The written quote includes seismic strapping where the Calaveras Fault corridor requires it.

Walk-In Showers & Shower Remodeling
Walk-in shower installation in San Ramon runs $4,500-$12,000 depending on footprint, glass specification, and whether we’re moving drain locations. We install Kohler and Toto valve bodies with pressure-balancing cartridges, set custom tile pans with proper pre-slope and membrane integration, and specify frameless glass enclosures with hardware that matches the bathroom’s finish schedule. In Crow Canyon homes with original 1990s fiberglass units, we regularly find subfloor damage from cracked pans - we document it with photos before touching tile, so the homeowner has evidence if a builder warranty claim is still viable.

Tub-to-Shower Conversion
Converting a tub to a shower in San Ramon costs $3,500-$10,000 and solves the problem that dominates our calls from Dougherty Valley: a 32-inch fiberglass tub-shower combo that feels cramped and is now cracking at the drain. We remove the unit, evaluate the framed subfloor for moisture damage, install a properly sloped shower pan with integrated curb or a zero-threshold linear drain system, and finish with tile and glass. The key detail in San Ramon’s older master-planned stock is the vent termination - if it penetrates stucco, the HOA likely requires texture match to the original builder package, which may be discontinued. We source specialty mixes or document variance applications before rough-in, not after.

Vanities, Tile & Fixtures
Vanity installation ranges $800-$3,000; tile and fixture packages vary with material selection. We stock KraftMaid and Wellborn cabinet lines with moisture-resistant plywood boxes (not particleboard), specify Cambria or Caesarstone tops where the budget allows, and install Kohler and Toto fixtures with documented valve-body warranties. In San Ramon’s builder-grade baths, the original vanities are typically 30-inch pressboard units with cultured marble tops - fine for a rental, worth replacing if you own. We measure twice: once for the cabinet box, once for the rough plumbing alignment, since high-volume builders often centered drains to the room, not to a standard vanity width.

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 San Ramon
We maintain sourcing depth across fifty-plus vetted brands so our written quotes carry honest numbers rather than inflated allowances. For San Ramon bathroom projects, we regularly specify Kohler and Toto fixtures for valve reliability, Cambria and Caesarstone for vanity surfaces, and KraftMaid or Wellborn for cabinet boxes. We also work with Therma-Tru and ViewLux product lines where window or door replacement intersects with bath remodeling, as happens frequently in San Ramon’s full-gut projects. Parts and materials are procured through Bay Area suppliers with standard lead times; we don’t quote allowances we can’t hit. The brand is named in the written scope, not left as “owner’s choice, TBD.”
Common Bathroom Remodeling Problems We See in San Ramon Homes

- HOA architectural review delays. In Windemere and Gale Ranch, contractors routinely start demolition assuming the building permit is the only hurdle. The HOA architectural review committee must approve exterior changes - vent locations, window profiles, stucco texture - before Contra Costa County will even accept the permit application. We submit HOA packages first, with photo documentation of existing conditions, and wait for written approval before ordering long-lead materials.
- Builder warranty voided by premature replacement. San Ramon’s 1995-2010 homes often carry ten-year builder warranties on wet areas. If a shower pan leaks, documenting the defect with photos and a moisture-meter reading preserves warranty coverage. Replacing tile or fixtures first, without documentation, can void that coverage and turn a warranty repair into a $12,000 out-of-pocket remodel.
- Discontinued stucco and finish materials. The specific stucco texture and roof/window profiles used by Shapell, Davidon, and Standard Pacific in San Ramon’s master-planned communities are frequently discontinued. We identify this during the HOA submission phase, source specialty suppliers when possible, and build variance-application time into the written schedule when not.
- Improper membrane installation in high-heat conditions. San Ramon’s inland valley summers exceed 100°F, and attic spaces above second-floor baths can reach 140°F. Liquid-applied membranes cure differently in these conditions; we adjust application timing and specify products rated for the thermal cycling these homes experience, not coastal-grade materials that degrade.
Pricing for Bathroom Remodeling in San Ramon, CA
We put the number in writing before anyone picks up a tool. Below are the ranges we quote for San Ramon’s market, based on 2024-2025 material costs and labor rates in Contra Costa County. Every quote is a flat price with a written scope and written warranty; “call for a quote” is not an option here.
| Service | Price Range in San Ramon |
|---|---|
| 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 |
| Bathroom Vanity Installation | $800 - $3,000 |
What moves a project within these ranges: footprint size, plumbing relocation, fixture and tile grade, and whether structural or subfloor repair is needed after demolition. A written change order is required for any deviation - the administrative discipline Haven acquired Rowan for, and the reason our projects finish within a few percent of the agreed price. Call (510) 686-6370 for an exact quote; estimates are free.
We Also Serve Cities Near San Ramon

Our crews work throughout the San Ramon Valley and surrounding communities. We regularly complete Bathroom Remodeling in San Ramon and also serve Dublin, Danville, Hayward, and Pleasanton with the same written-price process and documented photo record. Scheduling and dispatch are coordinated from our Bay Area office.
Serving San Ramon, CA - Our Local Coverage Area
We’re based in the San Ramon 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 San Ramon

Yes, if your home is in a master-planned community like Gale Ranch, Windemere, or Crow Canyon, the HOA architectural review committee must approve exterior changes before you can pull a building permit. We submit the HOA package first with existing-condition photos and finish samples, then wait for written approval before ordering materials or scheduling demolition. Call (510) 686-6370 and we’ll review your specific CC&Rs at no charge.
Yes, if you replace fixtures or tile in a wet area without first documenting an active defect. Many San Ramon homes built 1995-2010 carry ten-year warranties on shower pans and waterproofing. We photograph and moisture-map suspected leaks before touching anything, giving you evidence to preserve warranty coverage. If the builder is still liable, we coordinate the repair scope so your remodel budget covers upgrades, not rework.
A typical full bathroom remodel in San Ramon runs $9,000-$28,000; a small bath or powder room runs $5,000-$12,000. Walk-in shower installations fall at $4,500-$12,000, and tub-to-shower conversions at $3,500-$10,000. The written quote is a flat price with line-item scope - no allowances, no “plus materials” clauses. Call (510) 686-6370 for an exact number; estimates are free.
Delays happen when contractors treat the building permit as the only gate, ignoring the HOA architectural review that Contra Costa County effectively requires as a prerequisite. In San Ramon, many CC&Rs mandate exact matches to discontinued builder materials - stucco textures, window profiles, roofing - forcing specialty sourcing or variance applications that add weeks. We build this timeline into our written schedule from day one, not as a surprise change order.
The shower pan and valve body, in that order. The original fiberglass pans in 1985-2010 San Ramon homes are cracking as they age, and the single-handle pressure valves lack the anti-scald protection and cartridge longevity of current Kohler and Toto units. Replacing both with a custom tile pan and quality valve gives you the most functional improvement per dollar, and it preserves the option for full surround and glass upgrades later without re-roughing plumbing.
Ready to price your project? Call (510) 686-6370 to schedule your free estimate. We’ll review your existing bath, check your HOA requirements if applicable, and deliver a written flat price with scope and warranty - before any work starts, every time.
Written by Grant Rowan, Owner at Rowan Construction Group, serving San Ramon since 2007.







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