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Fast, Reliable Home Remodeling Across San Marino
Home remodeling in San Marino means working inside a city that takes its built character seriously. Anyone who has driven down St. Albans Road or past Lacy Park knows these aren’t tear-it-down-and-start-over houses. They’re 1920s Spanish Colonials, mid-century ranches, and the occasional newer build on Huntington Drive, each with its own quirks under the plaster. Before you even think about cabinets or countertops, there’s a step here that doesn’t exist in San Gabriel or Alhambra: design review. We’ll walk you through what that means, what it costs, and how to get from first sketch to final inspection without stalling on city approvals. If you’re pricing a kitchen, bath, or whole-home project in the 91108 zip, call (803) 680-2547 for a written estimate before any work starts.
Why Mason Remodeling Is San Marino’s Preferred Home Remodeling Company

We’ve spent enough time in San Marino to know the drill at City Hall, and that matters more here than almost anywhere else in the San Gabriel Valley. The municipal code protects historic character so aggressively that many remodel scopes require design review and a Certificate of Appropriateness before a building permit is issued. That’s a step contractors in neighboring Pasadena don’t always face, and it changes the timeline from day one. Skip it, and you’re looking at a stop-work order and a forced change order to restore original features.
Isaac Pruett runs our remodeling division with a simple rule: the price is in writing before a single tool comes off the truck. That’s been our standard since 2004, when Mason Remodeling was founded as part of the Threshold Group family of home-service companies. Every crew member who arrives at your door in San Marino is background-checked, identity-verified, and introduced to you by name and photo before the visit. You’ll see a photo ID badge at the door. That’s the Threshold Standard, and it applies to every job we run here.
Styles & brands we work with







Home Remodeling Contractor in San Marino
A Home Remodeling Contractor in San Marino is the license holder who pulls permits, coordinates subs, and answers for the schedule. When you’re reworking a kitchen on Winston Avenue or adding a primary suite off Los Robles Avenue, that’s who you want on paper. Our team handles the full scope: design coordination, structural changes, plumbing rough-in, electrical, finishes, and final inspection. Kitchen remodels in this market run $14,000 to $45,000. Bathrooms run $9,000 to $28,000. The bigger the scope, the more the pre-construction paperwork matters here because San Marino’s review process can add three to six weeks before a permit is even issued.
What the Job Actually Involves
We start with a site walk and a measure. Then we check the city’s design review requirements against your scope. If exterior-facing changes are involved, we prepare drawings for the Certificate of Appropriateness application. Only after that approval comes the building permit application, then demolition, rough-in, inspections, and finishes. If you’re on a street with historic overlay rules, the sequence is non-negotiable.
Materials and Allowances
This is where San Marino budgets break. Builder-grade tile and stock cabinets can clear design review, but they often look wrong against a 1920s Spanish Colonial. We set realistic allowances for period-appropriate finishes early so you’re not discovering a $6,000 gap between what you picked and what actually belongs in the house. We stock and order from specification-grade lines including KraftMaid, Cambria, Kohler, and Moen, so the materials arrive when the rough-in is ready for them.
Home Renovation in San Marino

A Home Renovation in San Marino means upgrading the systems and surfaces of a house without changing its footprint. Think new kitchen, reframed bath, flooring throughout, window replacement, or structural repairs on an older foundation. Most full-home renovations here fall between $45,000 and $130,000 depending on square footage and the age of the plumbing and electrical. It’s the most common project type we quote in the 91108 zip, and it’s the one where hidden conditions show up most often on older homes near the Huntington Library area.
Structural Repairs on Older Homes
San Marino has a lot of homes built before 1950, and their framing doesn’t always match what’s on paper. We’ve opened floors and found dropped beams, undersized joists, and foundation settling that no one documented. On a 1920s Spanish Colonial along Lorain Road, our crew opened a galley kitchen and found the original subfloor was laid over a structural drop that no one had documented. We brought in a structural engineer, revised the drawings, and pulled the permits before ordering KraftMaid cabinets so the rough-in and inspection sign-off could happen in the right order. The finished space kept the home’s exterior character while the inside got new Cambria counters and a functional layout.
Window and Door Replacement
San Marino’s design review applies to window and door changes when they alter the street-facing character of the house. If you’re swapping aluminum sliders for fiberglass on a visible elevation, expect review. Window replacement runs $4,500 to $15,000 depending on count and material. Door replacement is part of that scope in most cases. We handle the application drawings so the review board sees exactly what the finished elevation will look like.
Trusted Brands We Service in San Marino
We install and service materials from brands that hold up to San Marino’s standards: KraftMaid and Wellborn cabinetry, Cambria and Silestone surfaces, Kohler and Moen fixtures, and GAF roofing. We also coordinate with accessory-dwelling and prefab lines like Dvele and Cover when a homeowner wants a faster ADU path. Because we schedule materials around the city’s review calendar, your cabinets and counters arrive when the rough-in is ready for them, not before. That’s the difference between a project that flows and one that sits.
See the difference
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AfterCommon Home Remodeling Problems We See in San Marino Homes
- Starting demolition before design review clears. Exterior-facing changes require a Certificate of Appropriateness first. If the city inspects and finds unapproved work, the project stops and the homeowner pays to restore original features.
- Underfunding finish allowances. Period-appropriate tile, hardware, and trim in San Marino cost more than builder-grade. The gap between what a homeowner picks online and what the house needs often runs into the thousands.
- Unknown structural conditions on pre-1950 homes. Subfloor drops, undersized beams, and foundation settling don’t show up on drawings. We scope for them, but they still change the final number when we open the walls.
- Skipping framing inspections to save time. In San Marino, the city checks. If a subfloor or beam is covered before inspection, you’re paying to open it back up and the final sign-off gets delayed.
Pricing for Home Remodeling in San Marino, CA
Here are our current ranges for the most common San Marino scopes. These are honest market numbers, not teaser rates. Design review fees, permit costs, and structural corrections are line items, never hidden markups.
| Project | San Marino Price Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Window Replacement | $4,500 – $15,000 |
What moves the number: square footage, the age of your electrical and plumbing, whether design review applies, and what’s behind the walls. We deliver a written price before any work begins, and the number doesn’t change unless you change the scope or we find something hidden and document it with you first. Call (803) 680-2547 for a free estimate. We’ll come out, walk the property, and give you a line-item price you can actually plan around.
We Also Serve Cities Near San Marino
Our crews work throughout the San Gabriel Valley. You’ll find us regularly in San Gabriel, Alhambra, Pasadena, and South Pasadena, where the permit process is different and the design review step usually isn’t a factor. If you’re in one of those cities and comparing remodelers, our Home Remodeling team can help you understand what applies to your address. For anything specific to this side of the 710, start with Home Remodeling in San Marino.
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 Home Remodeling in San Marino
Yes, for exterior-facing changes most San Marino remodels need design review and a Certificate of Appropriateness before a building permit is issued. Interior-only work typically skips that step, but anything visible from the street goes through review. We prepare the application drawings and handle the sequence so your permit isn’t stalled. Call (803) 680-2547 and we’ll tell you whether your scope triggers review.
Most San Marino kitchen remodels run 10 to 16 weeks from signed contract to punch list. Design review, when it applies, adds three to six weeks before demolition starts. Cabinetry lead times and inspection scheduling add another several weeks. We build the schedule around the city’s calendar, not around optimism. Call (803) 680-2547 for a written timeline on your specific kitchen.
On older San Marino homes, the biggest cost driver is hidden plumbing and structural conditions behind the walls. Moving a drain line or reframing a rotted subfloor can add $2,000 to $6,000 to a bathroom that starts at $9,000. Finish materials matter too, but the opening-the-walls unknowns are what change the number most. We write the initial price with real allowances, then document any change order with you before we proceed.
Everything goes in writing before we do the work. When we open a wall and find rot, a shifted beam, or plumbing that doesn’t match the drawings, we stop and show you what we found. You get a written change order with the exact added cost and schedule impact before we spend another hour. No verbal approvals, no surprise invoices at the end. Call (803) 680-2547 to talk through how that works on your project.
It depends on your lot coverage ratio and setback requirements. San Marino’s zoning restricts how much of the lot can be covered by structures, so a detached ADU on a smaller lot usually eats into yard space more than a garage conversion would. We’ll pull the zoning and tell you what fits before you spend money on drawings. ADU construction runs $90,000 to $220,000 here; garage conversions run $30,000 to $80,000. Call (803) 680-2547 for a free lot review.
Written by Isaac Pruett, Owner at Mason Remodeling, serving San Marino since 2004.










