Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Bathroom Remodeling Across San Leandro
Most bathroom remodels in San Leandro run $9,000-$28,000 depending on scope, and our crew typically delivers written quotes within 48 hours of the site visit. We dispatch from our San Francisco Bay Area office and carry coastal-spec materials on every San Leandro job, because a vanity swap off Marina Boulevard can turn into a full rough-in replacement once you open a wall and find the original galvanized plumbing that 1950s tract builders buried there.
We’ve worked the flatlands west of I-880 and the steeper grades above I-580 enough to know the permit path and the material spec change between them. Call (510) 686-6370 to schedule your free estimate. We’ll show up with a camera, a moisture meter, and a written price before anyone picks up a tool.
Why Rowan Construction Group Walnut Creek Is San Leandro’s Preferred Bathroom Remodeling Company
Our Bathroom Remodeling team has delivered 4,000-plus projects since 2007, every one with a written price before work started and a documented photo record when the crew left. In San Leandro specifically, we’ve learned to price the coastal-spec version first, because the alternative is a callback in three years when galvanized fasteners in a fog-damp shower assembly start bleeding rust through the grout.
San Leandro homeowners read the three-star reviews and want the numbers on the page before they make contact. We put them there. Under Clause 1 of The Haven Standard, the price is written before anyone starts. No exceptions. Our 365-Day Done Right Promise is printed on every page, backed by a terms page, not an asterisk. And if you’ve already got a competitor’s written estimate, bring it. We’ll review it line by line at no charge.
Calls are answered by a live person 24/7. Crews are background-checked and uniformed. Grant Rowan built this discipline into the company from the first job, and it’s why projects finish within a few percent of the agreed number.
Our Bathroom Remodeling Services in San Leandro

Full Bathroom Remodeling
A full bathroom remodel in San Leandro starts at $9,000 for a coastal-spec small bath and runs to $28,000 for a master with structural repairs and custom tile. In the flatlands between I-880 and the bay, we routinely find that the “simple” job requires sistering floor joists over a bay-mud crawlspace or replacing a rotted plate where marine fog has wicked through delaminating stucco for a decade. We write those contingencies into the scope, not into surprise invoices. Every allowance is line-itemed, and no work proceeds on a change until the change order is signed.

Walk-In Shower Installation
Walk-in shower installation in San Leandro runs $4,500-$12,000. The price gap between a basic acrylic surround and a tiled, curbless walk-in with frameless glass often comes down to the substrate condition we find when we pull the old unit. On west-facing walls in the flatlands, we specify marine-grade, sealed cementitious backer board with stainless fasteners throughout the wet wall. The galvanized hardware a big-box installer might use costs less today. It costs more when you tear it all out in four years because the fog got in.

Tub-to-Shower Conversion
Tub-to-shower conversion in San Leandro typically costs $3,500-$10,000. The 1950s and 1960s tract homes that dominate San Leandro’s housing stock often have original cast-iron drains and galvanized supplies hidden behind the tub surround. Once we open the wall, we document what we find with photos, explain the options, and write a signed change order before touching the plumbing. A conversion in Estudillo Estates might be straightforward. The same footprint off Marina Boulevard might need a geotechnical consult if the subfloor structure has degraded over bay mud.

Vanities, Tile & Fixtures
Vanity installation runs $800-$3,000 depending on whether we’re hanging a prefab unit or building a custom surround with stone top and undermount sink. For tile and fixtures, we source from fifty-plus vetted brands including Kohler and Moen. In San Leandro’s fog-damp flatlands, we specify sealed grout systems and epoxy-based setting materials that flex with the seasonal moisture swing. The cheap spec saves maybe $400 on a typical bath. It fails inside five years here. We show customers both numbers and explain which one they’re actually buying.

What happens when you call
- 1
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 Leandro
We stock and install Kohler fixtures, Moen valves, and Blanco sinks on San Leandro jobs, with Caesarstone available for vanity tops. These aren’t showroom trophies; they’re brands we can get parts for fast when a valve cartridge fails or a drain seal needs warranty replacement. Our supplier relationships mean we don’t inflate the material line to cover uncertainty. The written quote reflects what we actually pay, plus our standard markup, documented in the scope. For coastal-spec bathrooms, we also source marine-grade fasteners, sealed cementitious backer, and vapor-barrier membranes rated for the moisture load San Leandro’s west-facing walls see. That specificity is what keeps our projects inside the original price.
Common Bathroom Remodeling Problems We See in San Leandro Homes

- Galvanized supply lines and cast-iron drains behind finished walls. In pre-1965 flatland homes, these corrode and back up silently. A homeowner calls for a vanity swap; we open the wall and find pinhole leaks that have rotted the stud bay for years. We document it with photos, write the change order, and replace the rough-in before closing the wall.
- Marine fog wicking through delaminated stucco on west-facing walls. San Leandro’s bay-front position funnels persistent moisture across the flatlands. The exterior wall of a bathroom looks fine from inside until you pull the tile and find the plate and subfloor punky. We sister the structure, replace the substrate, and spec a proper drainage plane so it doesn’t repeat.
- Cheap fasteners and unsealed joints in shower assemblies. Galvanized screws through cement board into damp studs rust, expand, and pop tile. Unsealed grout lines let fog-borne moisture into the wall cavity. We see the tear-outs. The fix is stainless fasteners, sealed cementitious backer, and epoxy grout from day one.
- Soft or degraded subfloors over crawlspaces. Bay-mud soils in the flatlands transmit moisture upward through unsealed crawlspaces. Bathroom floors feel solid until you remove the old tile and find the plywood delaminated. We replace with exterior-grade subfloor, properly glued and screwed, and specify a crack-isolation membrane under the new tile.
Pricing for Bathroom Remodeling in San Leandro, CA
Here are the line-item ranges we write into San Leandro quotes. These are flat prices with written scope, not estimates that balloon once work starts.
| Service | Price Range in San Leandro |
|---|---|
| Bathroom Remodel (coastal-spec to inland-spec range) | $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 job toward the top of the range: structural repairs, coastal-spec materials on west-facing walls, geotechnical or engineering requirements in the flatlands, and custom tile or stone work. What keeps it toward the bottom: straightforward swaps in the drier hills, standard fixtures, and no hidden damage. We don’t guess. We open the wall, photograph what we find, and write the price for the actual condition. Call (510) 686-6370 for your free estimate.
We Also Serve Cities Near San Leandro

Our crews work Bathroom Remodeling in San Leandro and the surrounding communities regularly, including Castro Valley, Oakland, Alameda, and Piedmont. Each city has its own permit office, its own inspection rhythm, and its own microclimate conditions that affect material specs. We know the difference between an Oakland hills job and a flatlands Alameda job, and we price accordingly.
Serving San Leandro, CA - Our Local Coverage Area
We’re based in the San Leandro 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 Leandro

Because the flatlands between I-880 and the bay sit on state-mapped liquefaction zones of bay mud and hydraulic fill, a ground-floor bathroom remodel there can require a parcel-level geotechnical report and engineered design that the identical job in Estudillo Estates or the hills above I-580 never triggers. The marine moisture is also measurably worse, so we specify coastal-spec materials that cost more upfront but don’t fail. Call (510) 686-6370 for an exact quote on your specific property - estimates are free.
Yes. San Leandro requires a permit for any tub-to-shower conversion that involves plumbing rough-in changes, and most 1950s homes need at least supply and drain modifications to accommodate modern fixtures. If the home is in the flatlands and the conversion is part of a larger ground-floor remodel, the building department may also flag a geotechnical review. We pull the permits, coordinate the inspections, and include that administrative time in our written scope. Call (510) 686-6370 and we’ll check your parcel’s specific requirements.
Marine-grade, sealed cementitious backer board; stainless or hot-dip galvanized fasteners (never standard galvanized); epoxy-based setting materials; and sealed grout systems rated for high-moisture cycling. We also specify a proper vapor barrier and drainage plane behind the tile assembly. These are not upgrades. They’re the base spec for any west-facing bath in San Leandro’s fog belt, because the alternative is a tear-out in three to five years when the moisture gets in. Call (510) 686-6370 to see the material allowances in our written quotes.
Most full bathroom remodels in San Leandro run $9,000-$28,000, small baths $5,000-$12,000, and walk-in shower installations $4,500-$12,000. The exact number depends on the condition we find when we open the walls, the material spec required for your home’s exposure, and whether engineering is triggered by your parcel’s soil conditions. We deliver a flat written price with line-item allowances before any work starts. Call (510) 686-6370 for your free estimate.
Yes. Our crews are equipped to sister floor joists, replace subflooring, and repair wall plates when we find moisture damage during demolition. We document the condition with photos, explain the repair scope, and write a signed change order with a fixed price before proceeding. No structural work proceeds without your written approval and a documented plan. This is standard on our San Leandro jobs, especially in pre-1965 homes where we expect to find surprises. Call (510) 686-6370 to discuss your project.
Written by Grant Rowan, Owner at Rowan Construction Group, serving San Leandro since 2007.







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