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Fast, Reliable General Contractor Across San Marino
If you’re planning a kitchen remodel, bathroom update, room addition, or whole-home transformation in San Marino, the first question is almost always the same: what will it actually cost, and who is walking through my door? At Mason Remodeling, a General Contractor serving San Marino, we deliver a written price before any work begins, and every crew member arrives with a name, a photo, and a photo ID badge you can verify at the door. Call (803) 680-2547 to schedule your free estimate, and you’ll get straight answers on scope, permits, and timeline before you commit to anything.
Why Mason Remodeling Is San Marino’s Preferred General Contractor Company

San Marino homeowners tend to ask harder questions than most, and honestly, that’s exactly how it should be. This is a city where design review, lot coverage rules, and preservation overlays can change a project’s cost and timeline before the first hammer swings. We’ve scoped San Marino Home Remodeling work in the neighborhoods around Lacy Park, along Huntington Drive, and through the streets south of California Boulevard, so we know what San Marino’s building department expects before we submit a permit packet.
Our reputation in San Marino is built on two things: the written price we hand you before demolition starts, and the Threshold Standard we apply to every technician who arrives at your home. Background-checked, identity-verified, in a clean marked uniform, with a photo ID badge shown at the door. You’ll know the name and face of every person on your property before they arrive. No surprises on either count.
When you call (803) 680-2547, a live person answers. Not a call tree. Not a voicemail loop. A person who can talk through your project, your timeline, and your questions about San Marino permitting in real time, any hour of any day.
Styles & brands we work with







Licensed General Contractor in San Marino
A Licensed General Contractor in San Marino handles the full scope of a residential project: pulling permits, scheduling trade work, coordinating inspections, and holding everyone accountable to the written plan, the written price, and the completion date. For San Marino homeowners, this matters more than in most cities because the permitting and design review process here adds steps that an unlicensed or out-of-town contractor will miss or wave off. We don’t wave anything off. We build the review timeline into your schedule.
Permit and design review coordination
San Marino’s Residential Design Guidelines require city design review before permits issue for many exterior changes and additions. That’s not a formality. If your project touches a roofline, a facade, or lot coverage, we file the pre-application and manage the review queue for you. We track the plan-check schedule, the inspection sign-offs, and the correction cycles so your project doesn’t stall waiting on paperwork.
Scoping and pricing before demolition
We never start with a verbal number and hope it holds. Every San Marino project gets a written scope of work with itemized allowances for cabinetry, counters, fixtures, and finishes. That’s how a $14,000 to $45,000 kitchen remodel in San Marino stays within the range you approved, instead of growing by surprise change orders when you pick a Cambria island or a Kohler fixture.
Residential General Contractor in San Marino

A Residential General Contractor in San Marino manages the projects that make a house function better for the people living in it: kitchens, bathrooms, additions, ADUs, garage conversions, and whole-home remodels. We work exclusively on residential properties here, and we treat every job as if your family is living in the house while the work happens, because in most San Marino homes, they are. Dust control, clean job sites, locked tool storage, and a respectful crew are not add-ons. They’re standard.
Additions and ADU construction
Home additions in San Marino run from $45,000 to $130,000, and ADU construction ranges from $90,000 to $220,000. The spread is real because San Marino enforces a strict 45% maximum lot coverage, and properties in the Hillside and Historic Preservation overlays, like parts of the Old Mill and Lacy Estates districts, carry additional review requirements. We calculate coverage math before you spend a dollar on drawings, so you know what’s buildable on your lot before you commit.
Kitchen and bath remodeling
A full kitchen remodel in San Marino typically falls between $14,000 and $45,000, and a bathroom remodel between $9,000 and $28,000. The range depends on whether walls move, whether load-bearing structure is involved, and which material allowances you select. We write every allowance into the scope so the price you approve is the price you pay.
Trusted Brands We Service in San Marino
When we spec materials for San Marino projects, we work with specification-grade partners, not big-box clearance stock. That means KraftMaid and Wellborn cabinetry, Cambria and Silestone surfaces, and Kohler and Moen fixtures. For smaller jobs and utility work, we keep proven products on hand, including Sakrete concrete mixes for driveway and hardscape pours and Cover for pre-engineered ADU elements where they fit a lot’s constraints. Working with Dvele on high-performance enclosure packages is an option for San Marino homeowners who want a tighter building envelope. You get vetted, professional-grade products priced in your written scope before work starts.
See the difference
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AfterCommon General Contractor Problems We See in San Marino Homes
- Skipping design review until the permit packet is already in. San Marino’s design review pre-application step catches people off guard. A homeowner or a less experienced contractor files for an addition or exterior change, then discovers the project triggers design guidelines after the packet is submitted. That adds weeks of rework and resubmission. We file the pre-application first. Always.
- Flat quotes without itemized allowances. A number without a breakdown is not a bid. If cabinetry, counters, and fixtures are not itemized, a Cambria or Silestone upgrade becomes a disputed change order instead of a planned line item. The dispute is avoidable. We itemize every allowance.
- Underestimating San Marino’s plan-check queue. Contractors who assume a 4 to 6 week permit turnaround get burned here. San Marino’s plan-check and inspection scheduling runs on its own clock, and assuming a quick approval pushes the draw schedule and completion date out. We build the real queue into the calendar from day one.
- Hidden structural conditions in older homes. San Marino has a deep stock of 1960s and earlier ranch houses, and load-bearing walls, subfloor rot, and outdated framing are common findings once demolition starts. We plan for the likely conditions in the scope, not as a surprise when the wall comes down.
Pricing for General Contractor in San Marino, CA
These are real, current San Marino market ranges. A full kitchen remodel runs $14,000 to $45,000. A bathroom remodel runs $9,000 to $28,000. A home addition runs $45,000 to $130,000, and an ADU runs $90,000 to $220,000. A garage conversion falls between $30,000 and $80,000. A roof replacement runs $8,000 to $20,000, window replacement $4,500 to $15,000, a concrete driveway $4,500 to $12,000, and a paver patio $3,500 to $11,000. What moves you within a range: structural changes, material allowances, permit and design review requirements, and whether your lot sits in an overlay district. You’ll get a written, line-item price before any work starts. Estimates are free. Call (803) 680-2547.
| Project Type | 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 |
| Garage Conversion | $30,000 – $80,000 |
| Roof Replacement | $8,000 – $20,000 |
| Window Replacement | $4,500 – $15,000 |
| Concrete Driveway Installation | $4,500 – $12,000 |
| Paver Patio Installation | $3,500 – $11,000 |
One field note, because it’s the clearest picture of how we work: we scoped a 1960s ranch house kitchen in San Marino’s Lacy Park neighborhood not long ago. The homeowner wanted KraftMaid cabinets, a Cambria quartz island, and a Kohler sink, but the existing load-bearing wall between the kitchen and dining room had to stay. We pulled the permit, passed rough-in and framing inspection sign-offs, set a draw schedule, and delivered the finished kitchen inside the $14,000 to $45,000 kitchen remodel range, with a short punch list closed out 10 days after final inspection. That’s the process, start to finish, every time.
We Also Serve Cities Near San Marino
Mason Remodeling serves San Marino and the surrounding communities. We bring the same written pricing, the same Threshold Standard, and the same design-review and permitting discipline to homeowners in San Marino, San Gabriel, Alhambra, Pasadena, and South Pasadena. If you’re a few blocks outside the San Marino city line, give us a call. (803) 680-2547.
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 General Contractor in San Marino
Yes, if your remodel touches plumbing, electrical, structural framing, or any exterior element, San Marino requires a permit. Simple finish swaps like paint or cabinet refacing usually don’t, but any change to load-bearing walls, window openings, or plumbing fixtures does. We confirm permit requirements in writing before your project starts.
Permitting in San Marino typically takes 4 to 10 weeks depending on plan-check queue, design review requirements, and whether your property sits in an overlay district. We file the pre-application and manage every review cycle for you, and the timeline is part of your written scope from day one.
Three things drive cost most in San Marino: structural changes like moving or removing load-bearing walls, material allowances for cabinetry and surfaces like Cambria or Silestone, and permit and design review requirements on your specific lot. Our itemized scope shows you each line before you sign.
Most San Marino properties can support an ADU or garage conversion, but the city’s 45% maximum lot coverage and Hillside or Historic Preservation overlays in areas like Old Mill and Lacy Estates determine what’s buildable. We calculate coverage and overlay requirements on your lot before you commit to plans. ADU construction in San Marino runs $90,000 to $220,000, and garage conversions run $30,000 to $80,000.
Your written scope includes every line item: material allowances, labor, permit fees, subcontractor work, and the draw schedule. It states what’s covered, what’s excluded, and for how long, with our 365-Day Done Right Promise in writing. If the work isn’t right within a year of completion, we make it right at no cost to you. Call (803) 680-2547 for a free estimate and a written scope on your project.
Written by Isaac Pruett, Owner at Mason Remodeling, serving San Marino since 2004.










