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Fast, Reliable Bathroom Remodeling Across San Marino
Most bathroom remodels in San Marino run between $9,000 and $28,000, with the real spread driven by whether you’re refreshing a guest bath or gutting a master suite on a hillside lot. We’re Mason Remodeling, and we’ve worked the bathroom trade in San Marino long enough to know that the difference between a smooth job and a painful one usually comes down to what happens before demolition: drain drops, vent paths, and the City of San Marino permit sequence. Call (803) 680-2547 for a free estimate, and we’ll walk your bathroom with you before a single fixture is selected.
Several things make a San Marino bathroom different from one in neighboring San Gabriel or Pasadena. Many homes here sit on hillside or side-yard-constrained lots where changing a toilet location or adding a freestanding tub means re-routing drains below finished floors, and that’s where costs spiral. We plan around what’s under the slab first, then talk tile. You’ll get a written price before work starts, and every crew member who arrives at your door is identity-verified under the Threshold Standard: name and photo sent before the visit, photo ID badge at the door, clean marked uniform.
Why Mason Remodeling Is San Marino’s Preferred Bathroom Remodeling Company

San Marino homeowners tend to ask sharper questions than most, and we respect that. City design review, hillside setbacks, and older housing stock mean a bathroom remodel here rarely follows a simple template. Our Bathroom Remodeling team knows the San Marino-specific sequence: fixture footprint first, vent path second, finishes third. That ordering saves homeowners from the classic failure mode of picking a freestanding tub, moving the toilet, then discovering the drain can’t make the grade without cutting into finished floors.
We’re part of the Threshold Group family of home-service companies, founded in 2004. Every Mason Remodeling location is independently owned and operated, and every job holds to Threshold Verified standards. That means a written price before any work begins, not as a favor but as standard practice. It also means a 365-Day Done Right Promise: if the work isn’t right within a year of completion, we make it right at no cost. No dispute process, no conditions.
Dispatch and scheduling for San Marino are coordinated from the brand’s Los Angeles office, with crews serving San Marino locally. When you call, a live person answers. Not a call tree, not a voicemail loop. That matters at 9pm when you realize the only bathroom in the house is about to be out of commission for three weeks and you have questions about the schedule.
Styles & brands we work with







Bathroom Renovation in San Marino
Bathroom Renovation in San Marino means reworking an existing bathroom’s layout, finishes, and fixtures while respecting the structural and plumbing realities of the home, and it typically runs $9,000 to $28,000 depending on scope. A renovation on Lacy Park-adjacent streets or up near the San Marino High School zone often involves working with older framing, cast-iron drain lines, and floor systems that have settled over decades. We handle the full sequence: demolition, rough framing, plumbing and electrical rough-ins, City of San Marino inspections, then tile, cabinetry, and trim.
Master Bath Renovations
Master baths in San Marino homes built between the 1930s and 1960s tend to have tight original footprints and dated plumbing risers. We plan around the existing drain and vent locations as much as possible, which keeps permit triggers predictable and keeps costs from ballooning mid-job. A master renovation with a walk-in shower, custom vanity, and heated floor typically lands in the $15,000 to $28,000 range.
Guest and Hall Bath Renovations
Guest baths are where San Marino homeowners often start, since they’re smaller and less disruptive. A full refresh with new tile, vanity, toilet, and lighting usually runs $9,000 to $16,000. If the rough plumbing is sound, we reuse the existing drain drops and focus budget on finishes like Cambria or Silestone surfaces and Kohler or Moen fixtures.
Small Bathroom Remodel in San Marino

Small Bathroom Remodel work in San Marino typically falls between $5,000 and $12,000, and it’s the right call when the room is under 50 square feet or you’re converting a half bath into a three-quarter bath. The major cost variable is whether the existing drain-drop and vent path can support a shower. In San Marino homes near The Huntington or in the 91108 ZIP code, that question often drives the entire budget and schedule.
Half Bath to Full Bath
Converting a powder room to a full bath adds real value, but only if the venting and drain slope work. San Marino’s residential design review and hillside plumbing constraints mean this conversion hinges on feasibility before tile selections. If the sewer lateral is at the same elevation, we can tie in without re-routing below finished floors, which saves thousands.
Saving Space Without Sacrificing Function
Small bathrooms in San Marino’s mid-century ranch homes reward careful fixture selection. A corner shower, wall-mounted vanity, and pocket door can open the room without moving plumbing. We set allowances in writing before any spec-grade selections, so tile, trim, and glass choices never blow past the agreed number.
Trusted Brands We Service in San Marino
We install and service specification-grade bathroom products from KraftMaid and Wellborn cabinetry, Cambria, Silestone, and Caesarstone surfaces, and Kohler, Moen, Toto, and Grohe fixtures. If you’re considering prefabricated ADU or modular solutions for a larger property, we’ve also worked alongside units from Abodu and Cover. Because we stock common replacement parts for these brands locally, San Marino homeowners don’t wait weeks for a vanity drawer glide or a shower valve trim kit. Faster turnaround on parts means fewer days with a bathroom torn apart.
See the difference
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After
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After
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AfterCommon Bathroom Remodeling Problems We See in San Marino Homes
- Moving fixtures before confirming drain paths. Selecting a freestanding tub or shifting the toilet location without verifying the existing drain-drop and vent path often forces a below-floor re-route after demolition. In hillside San Marino homes, that can add $3,000 to $7,000 mid-job.
- Treating the permit sequence as a formality. The City of San Marino requires framing, plumbing, and electrical rough-in inspections before walls close. Skipping or rushing this step means corrections discovered late, and that stalls the draw schedule and the project calendar.
- Verbal allowances that drift. Setting tile, plumbing trim, or glass allowances verbally is the most common way a San Marino bathroom goes over budget. A homeowner picks a premium tile or a Kohler fixture they love, and the change order arrives after the work was priced. We put allowances in writing before any selection.
- Older subfloor failures. A number of San Marino bathrooms built in the 1950s and 1960s have water-damaged subfloor sections under the tile. It’s invisible until demolition. We inspect the subfloor and sister any soft areas before tile goes down, so the floor doesn’t move a year later.
Pricing for Bathroom Remodeling in San Marino, CA
Here’s what you can expect to pay in San Marino’s market today. These are price ranges for the work itself, not vague estimates:
| Service | Typical Price Range |
|---|---|
| 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 a San Marino bathroom from the low end to the high end? Moving plumbing, a hillside drain re-route, custom glass enclosures, heated flooring, and any structural repair uncovered during demolition. A small guest bath refresh with the original fixture footprint can come in near $9,000. A master suite gut with a walk-in shower, custom vanity, and high-end tile can reach $28,000. Before you commit, schedule a free estimate. We’ll walk the space, check the drain and vent situation, and put the price in writing. Call (803) 680-2547.
We Also Serve Cities Near San Marino
Mason Remodeling serves homeowners throughout the San Gabriel Valley. If you’re in San Gabriel, Alhambra, Pasadena, or South Pasadena, you’ll get the same San Marino standard: written pricing, verified crews, and a one-year guarantee on every bathroom project. Call (803) 680-2547 to schedule your free estimate wherever you are in the area.
Serving San Marino, CA - Our Local Coverage Area
We’re based in the San Marino 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 Marino
Yes, if you’re moving plumbing, altering framing, or changing electrical, the City of San Marino requires permits and inspections. Cosmetic work like paint, new vanity tops, or fixture swaps often doesn’t, but a shower drain change does. We pull permits, schedule inspections, and manage the sequence so rough-ins are cleared before walls close. Call (803) 680-2547 and we’ll tell you exactly what your project triggers.
A bathroom remodel in San Marino typically costs $9,000 to $28,000, with small bathrooms running $5,000 to $12,000. The biggest variables are plumbing relocations, hillside drain access, and finish selections. We set every allowance in writing before work begins, so the price you approve is the price you pay unless you change the scope. Call (803) 680-2547 for a free line-item estimate.
Most San Marino bathroom remodels take 3 to 6 weeks from demolition to final inspection, depending on scope and permit timing. A straight tub-to-shower conversion can finish in about 2 to 3 weeks. A full master gut with structural work runs closer to 6 weeks. We give you a written calendar at the start and update it as inspections clear.
Plan for 1 to 2 weeks for permit issuance and 2 to 3 inspection stops during the project: plumbing rough-in, framing and electrical rough-in, and final. San Marino’s review process is methodical, and we build that into the schedule rather than acting surprised by it. Call (803) 680-2547 and we’ll map the permit timeline for your specific address.
Three things change a San Marino bathroom price mid-job: discovering a drain re-route after demolition, uncovering a soft or damaged subfloor, and selecting finishes above the agreed allowance. We minimize all three by checking drain paths before you approve the plan, inspecting subfloors during our first walk, and putting every selection allowance in writing. If a change is needed, you’ll see the written change order before any work continues. Call (803) 680-2547 to start with a free estimate.
Written by Isaac Pruett, Owner at Mason Remodeling, serving San Marino and the San Gabriel Valley with written-price bathroom remodeling since 2004.










