







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Bathroom Remodeling Across San Lorenzo
A full bathroom remodel in San Lorenzo typically runs $9,000 – $28,000, with tub-to-shower conversions landing between $3,500 and $10,000. Most projects take two to six weeks depending on what we find behind the walls, and nearly every pre-1960 home here needs some re-piping before tile goes up. Our crews know Hesperian Boulevard, Lorenzo Manor, and the Village streets well enough to tell you what’s likely hiding under that cast-iron drain before we even open the wall. If you’re planning a bathroom remodel in San Lorenzo, call (803) 680-2547 and we’ll schedule a free estimate. Isaac Pruett leads every project personally, and you’ll get a written price before any work starts.
Why Mason Remodeling Is San Lorenzo’s Preferred Bathroom Remodeling Company

San Lorenzo homeowners keep calling us back because we treat the house the way we’d treat our own grandmother’s. We don’t send a stranger to your door. Every technician who arrives is background-checked, uniformed, and carrying a photo ID badge, and you receive their name and photo before they ring the bell. That’s The Threshold Standard, and it’s how we’ve operated since 2004 as part of the Threshold Group family.
We also understand this housing stock in a way that matters. The 1950s and early-1960s tract homes along Hesperian Boulevard and around Del Campo Park were built fast, with materials that have reached the end of their useful life. Cast-iron waste lines are the big one. When we scope a bathroom remodel in San Lorenzo, we plan for what we’ll actually find: corroded drains, notched floor joists, and framing that isn’t square. That planning keeps your schedule and budget honest.
Dispatch and scheduling are coordinated from our San Francisco Bay Area office, and crews serve San Lorenzo locally. A live person answers every call, 24 hours a day, seven days a week. No call trees, no voicemail loops. Call (803) 680-2547 to talk through your project or reference our Bathroom Remodeling team’s full service range.
Styles & brands we work with







Tub to Shower Conversion in San Lorenzo
A tub to shower conversion in San Lorenzo is often the smartest dollar-per-square-foot remodel you can make. It’s the job where we pull out an old bathtub, repair what’s underneath, and build a walk-in shower in the same footprint, usually adding a bench, niche shelving, and a Schluter strip (the metal trim that seals the edge where tile meets flooring) for a clean finish. In this city’s late-1950s tract homes, the tub often sits directly on top of a notched joist, so the conversion almost always includes structural repair you can’t see on a surface-level quote.
Expect to spend $3,500 – $10,000 depending on tile choice, glass enclosure style, and what the plumbing looks like when the tub comes out. A basic conversion with a prefabricated pan runs lower, while a full tile shower with frameless glass pushes toward the top end.
Cast-Iron Drain Replacement
In older San Lorenzo bathrooms, the tub drain is frequently a two-inch cast-iron line that’s been rusting from the inside out since Eisenhower was in office. When we remove the tub, that pipe often crumbles or snaps at the hub. The fix is a signed change order for ABS replacement, which adds cost but prevents a slow leak under a brand-new shower pan.
We inspect the accessible plumbing before demo and photograph everything we find. You’ll see exactly what’s happening with your own eyes, and you’ll approve any added scope in writing before we proceed.
Walk-In Safety Features
A tub-to-shower conversion in San Lorenzo is frequently requested by older homeowners who want to age in place comfortably. We install low-threshold shower pans, grab bars anchored into blocking we add behind the tile, and built-in benches with proper drainage slope. Every shower is built to meet current accessibility standards without looking institutional.
Specification-grade fixtures from Kohler, Moen, and Toto are standard options, and we can source Cambria or Silestone slabs for custom shelving if you want something beyond the catalog.
One Day Bath Remodel in San Lorenzo

A one day bath remodel in San Lorenzo means we complete a straightforward tub or shower replacement or a surface-level refresh in a single visit. When you hear that term, understand what it realistically covers: swapping a dated bathtub for a new one, installing a fresh shower surround, replacing a vanity and faucet, or upgrading from a curtain rod to a frameless glass enclosure. It does not mean a full gut remodel of a master bathroom in one day. Anyone who tells you otherwise is selling something that won’t pass inspection.
Costs for one day bath work in this area generally fall within the tub-to-shower conversion range of $3,500 – $10,000, depending on what’s being replaced and whether we hit hidden plumbing problems. The advantage isn’t speed for speed’s sake. It’s that we arrive with a complete plan and all materials staged, so the job runs start to finish without a second visit needed for a forgotten part.
Surface Refresh Packages
For a bathroom that’s structurally sound but cosmetically tired, a one day bath remodel can include a new shower surround, a fresh vanity, updated fixtures, and re-caulking throughout. Homes near San Lorenzo High School often have original 1950s tile that’s still in decent shape, but the grout and plumbing fixtures are worn out.
We can refresh those surfaces without tearing into the walls, preserving the mid-century character while bringing the plumbing and seals up to current code.
Frameless Glass Enclosure Upgrade
If your bathtub or shower pan is fine but the curtain rod feels dated, a frameless glass shower enclosure is a single-day install that changes the whole room’s look. San Lorenzo homeowners near the San Lorenzo Creek corridor often choose this as a fast refresh before listing a home for sale. Expect the enclosure work to fall in the $800 – $3,000 range when paired with a new vanity or fixture package.
Trusted Brands We Service in San Lorenzo
We spec cabinets from KraftMaid and Wellborn, quartz surfaces from Cambria, Silestone, and Caesarstone, and plumbing fixtures from Kohler, Moen, Toto, and Grohe. Because we stock the most common replacement components locally for San Lorenzo customers, turnaround on a failed valve cartridge or a cracked shower pan tends to be faster than a big-box special order. We’ve also worked on homes built with pre-fab systems like Abodu and Cover, so if you’re adding a bathroom to an accessory dwelling unit, we can match the existing trim and hardware language. Our relationships with these manufacturers mean parts arrive in days, not weeks.
Common Bathroom Remodeling Problems We See in San Lorenzo Homes
- Crumbling cast-iron drains. Homes built before 1960 along Hesperian Boulevard and in Lorenzo Manor almost always have cast-iron waste lines that are rusted thin or already leaking. Any remodel that disturbs them needs a re-pipe plan before the rough-in inspection.
- Notched and undersized floor joists. The original 2×6 joists in many San Lorenzo ranch homes were notched aggressively to route plumbing, which weakens the floor under a bathtub or shower. We reinforce with sister joists so the new tile won’t crack.
- Failed shower pan liners. A common call from the Boulevard area is a shower that leaked into the room below or into the crawlspace. The fix is a full pan replacement with a proper pre-slope and waterproofing membrane, never a caulk patch.
- Mold behind original tile. Bathrooms that still have their original 1950s tile often have water intrusion behind it because the old mud-bed walls were never waterproofed by modern standards. We remove affected substrate, treat the framing, and rebuild with a waterproof membrane before tile goes up.
See the difference
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AfterPricing for Bathroom Remodeling in San Lorenzo, CA
Here’s what real line items cost in this market. These are the prices we write on contracts for San Lorenzo work:
| Scope | Typical Range |
|---|---|
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Bathroom Vanity Installation | $800 – $3,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Full Bathroom Remodel | $9,000 – $28,000 |
The big cost drivers in San Lorenzo are hidden plumbing and structural work. A cast-iron drain replacement adds $1,500 – $3,500 depending on how far the line runs. Sistering floor joists adds $1,000 – $2,500 depending on access. Tile selection matters too: a standard porcelain tile at $4 per square foot versus a Cambria slab accent wall at $60 per square foot changes the total by thousands. We give you a written price before any work begins, and if we find something during demo, you approve the change order in writing before we spend a dollar more. Call (803) 680-2547 for a free estimate. The estimate visit is free, the written quote is free, and there’s no obligation.
We Also Serve Cities Near San Lorenzo
Our crews regularly work in Castro Valley, San Leandro, Union City, and Oakland. If you’re in one of those areas and planning a bathroom remodel, we’ll schedule the same free estimate and written-price process. Even if you’re a few blocks over the San Lorenzo line, our Bathroom Remodeling in San Lorenzo team covers the surrounding East Bay communities without any change in how we operate.
Serving San Lorenzo, CA - Our Local Coverage Area
We’re based in the San Lorenzo 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 About Bathroom Remodeling in San Lorenzo
Yes, bathroom remodels in San Lorenzo require permits through Alameda County when you’re moving plumbing, altering framing, or changing the shower pan. If you’re doing a surface refresh only, like a new vanity, fixture swap, or caulk job with no structural changes, permits may not be required. For any work that touches drains, supply lines, or framing, we pull the permits ourselves and handle every inspection from rough-in to final sign-off. Call (803) 680-2547 and we’ll tell you exactly what your project needs.
Most full bathroom remodels in San Lorenzo run two to six weeks from demo to final inspection. The biggest variable is what we find in the walls and under the floor. A tub-to-shower conversion on a home with sound joists can finish in a week. A 1950s ranch with a crumbled cast-iron drain and notched joists may take an extra week for the re-pipe and structural repair. We give you a calendar with your written quote, and we hold to it unless you approve a change.
The most common surprise is a cast-iron waste line that disintegrates when we remove the old tub or shower. The second is floor joists that were notched so deeply during the original construction that they need sistering before tile can go down. Both are known issues in this housing stock, which is why our written quote includes an inspection line item and a clear change-order process. If you’re pricing a remodel, plan for these as likely, not possible.
A full bathroom remodel in San Lorenzo runs $9,000 – $28,000, a tub-to-shower conversion runs $3,500 – $10,000, and a walk-in shower installation runs $4,500 – $12,000. Your total depends on tile and fixture selections, whether we’re moving plumbing, and what hidden conditions we find. Call (803) 680-2547 and we’ll give you a written, itemized quote before any work starts, so you know the real number.
Yes, we handle permits and every inspection for bathroom remodels in San Lorenzo. Isaac Pruett pulls the permit, schedules rough-in and final inspections with Alameda County, and walks the inspector through the work. You never have to file anything or chase a permit office. The inspection sign-off comes back to you with the final walkthrough.
What Happens Next

If you’re ready to price a bathroom remodel in San Lorenzo, call (803) 680-2547 to schedule a free estimate. Isaac Pruett will come out, look at your plumbing, check the joists, measure the space, and give you a written price before you commit to anything. That price comes with a 365-Day Done Right Promise: if the work isn’t right within a year of completion, we come back and make it right at no cost to you. A live person answers the phone every time, day or night.
Written by Isaac Pruett, Owner at Mason Remodeling, serving San Lorenzo since 2004.










