Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across San Francisco
Finding a general contractor in San Francisco who actually understands this city’s buildings is different from finding one anywhere else. San Francisco isn’t a subdivision of new tract homes. It’s a dense grid of pre-1940 Victorians and Edwardians built on steep hills and, in some neighborhoods, filled bay ground. A kitchen remodel here can trigger a soft-story retrofit, a Planning Department review, and a seismic load-path analysis before a single cabinet gets ordered. That’s the work we do. If you’re planning a remodel, addition, or ADU in San Francisco, call Norm and the crew at (855) 382-3257 for a free estimate. We’re not a single-trade shop claiming to be a general contractor; we carry the full interior-to-exterior scope, from KraftMaid cabinets to GAF roofing, under one contract.
Why Toolbox Contractors Is San Francisco’s Preferred General Contractor Company
We’ve built our reputation in San Francisco on jobs other contractors walk away from. Soft-story retrofits, hillside access problems, historic resource reviews, narrow lots in Noe Valley with zero side setbacks. Those are the projects where our full-scope capability matters most. When a remodel in the Mission District reveals a sagging floor because the garage below was carved into the soft story, we don’t stop the job and hand you a list of specialists to call. We handle the shear walls, the foundation upgrade, the load path correction, and then we install the cabinets and countertops you actually wanted in the first place. Norm Castellano runs every San Francisco project the same way: engineered first, permitted properly, built to the code the city actually enforces. One contractor. Every phase.
We carry insurance and bonding, and we’re licensed as a general contractor. When you call (855) 382-3257, you’re talking to the people who will actually be on your job site, not a call center. That matters in San Francisco, where the difference between a quote that accounts for DBI inspections and one that hopes nobody checks is the difference between a finished project and a stop-work order.
Styles & brands we work with
Residential General Contractor in San Francisco
Residential General Contractor work in San Francisco means taking a whole building envelope seriously, not just the room you’re renovating. A residential general contractor here has to manage what’s behind the walls and under the floors as much as what’s visible. The city’s housing stock is predominantly attached rowhouse-style Victorians and Edwardians from the 1880s through the 1930s, many with ground-floor garages that compromise the soft story. So a bathroom remodel upstairs isn’t just tile and a vanity. It’s a question of whether the existing framing still carries the load, whether the permit triggers a review of the whole building’s seismic performance, and whether the water lines feeding that second-floor bath are the original galvanized steel. That’s the scope we manage.
Costs for residential general contractor work in San Francisco run higher than the suburbs for a reason. Labor rates, DBI fees, and the engineering that older buildings require add up. A kitchen remodel here typically runs $16,520 to $53,100. A bathroom remodel lands between $10,620 and $33,040. Those numbers aren’t inflated; they reflect what it costs to do the work correctly on buildings that are often 100 years old.
Permit-Ready Scope and Documentation
We prepare every San Francisco project with the documentation DBI and Planning actually ask for: structural calculations where needed, product approvals for seismic-rated materials, and written allowances on every line item. Cheap quotes in this city leave that out. Then the inspector shows up and asks for the engineering. We’ve seen it happen.
Materials That Match the Building
San Francisco homes weren’t built with big-box store dimensions. Stud spacing varies. Walls aren’t square. That’s why our partnerships with 50+ vetted brands matter. We can specify KraftMaid or Wellborn cabinets in custom depths, Cambria or Caesarstone countertops cut to fit weird angles, and Kohler or Moen fixtures that work with older supply lines. We’re not limited to a generic catalog.
Hire a General Contractor in San Francisco
When you hire a General Contractor in San Francisco, you’re hiring someone to navigate a regulatory environment that most homeowners don’t see coming. San Francisco’s building code, enforced through DBI, ties together seismic safety, historic preservation, and hillside stability in ways that affect nearly every project on pre-1940 buildings. The soft-story retrofit ordinance is the big one. If your building has a garage at street level and you’re remodeling above it, the city may require a full retrofit to 2016 Soft-Story Retrofit Program standards before your kitchen remodel gets signed off. That’s a foundation-to-roof load path review, new shear walls, and often new hold-downs to the foundation. We do that work in-house. We don’t farm it out.
Home additions in San Francisco start at $53,100 and can reach $153,400 depending on whether you’re building up or out, and what the hillside does to your foundation plan. ADU construction, which we handle through partnerships with Abodu, Dvele, Boxabl, and Plant Prefab, runs $106,200 to $259,600. Those are real budgets, not placeholder numbers, and they reflect the seismic, drainage, and access challenges specific to San Francisco lots.
Soft-Story Retrofit Before Remodel
We order the retrofit before we order the cabinets. It’s not a delay; it’s the sequence. The retrofit strengthens the structure so the remodel doesn’t crack it further. Then we install the kitchen or bath with the confidence that the building won’t shift under the new finishes.
One Contract From Foundation to Roof
The same company that fixes the foundation can replace the roof, install the windows, rebuild the fence, and lay the paver patio. In San Francisco, where a single project often touches all of those systems, that’s not a convenience. It’s the only way to keep the scope coherent.
Trusted Brands We Service in San Francisco
We stock and install materials from brands our San Francisco customers already know and ask for. Master Halco and Jerith fencing systems hold up to the salt-laden fog air near the coast better than untreated lumber. Ameristar steel fencing stands up to the damp winters without warping. We keep these products moving through our supplier network so San Francisco jobs don’t stall waiting on a truck from out of state. When a Noe Valley homeowner wants a fence that won’t rot in the marine layer, we’re ready with the right product and the right fasteners. That’s the difference between a fence that lasts five years and one that’s still straight at fifteen.
Common General Contractor Problems We See in San Francisco Homes
Every city has its own failure patterns. Ours are defined by the fog, the hills, and the age of the buildings. Here’s what we find again and again when we open up walls in San Francisco:
- Skipped soft-story retrofit requirement on upper-floor remodels. A homeowner remodels the kitchen above a ground-floor garage, the permit triggers the soft-story ordinance, and the contractor who quoted cheap didn’t include the retrofit. Stop-work order follows. Change order follows that.
- Unpermitted load-bearing wall removals. Someone opens the floor plan without pulling a permit, the inspector never signs off, and two years later the homeowner can’t sell the house because there’s no record the beam was installed to code. We fix those retroactively, and it costs more than doing it right the first time.
- Ignored Planning Department historic resource review. Pre-1940 buildings in San Francisco often have historic resource status. Changing exterior windows or rooflines without review means fines and a forced reversal. We check that before we quote.
- Moisture and corrosion hiding in the envelope. Persistent damp from the marine fog works its way into old siding, window frames, and roof decking. A routine window replacement often reveals rot that has to be repaired before the new window goes in. We plan for that in the initial scope, not as a surprise.
See the difference
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AfterPricing for General Contractor in San Francisco, CA
San Francisco pricing is its own animal. The city’s labor market, permit fees, and engineering requirements push costs above the state average, and older buildings add structural variables no national guide accounts for. Here are the ranges we quote on typical San Francisco projects:
| Project | Typical Cost Range in San Francisco |
|---|---|
| Kitchen Remodel | $16,520 – $53,100 |
| Bathroom Remodel | $10,620 – $33,040 |
| Home Addition | $53,100 – $153,400 |
| ADU Construction | $106,200 – $259,600 |
What moves the number within those ranges? The age of your building, whether the soft-story retrofit is triggered, the condition of the foundation, and whether Planning requires a historic resource review. Our quotes are written line-by-line with allowances detailed, so you see exactly what’s covered. Call (855) 382-3257 for a free estimate. We’ll walk the site, check the building’s permit history, and give you a number you can actually plan around.
We Also Serve Cities Near San Francisco
Our San Francisco crew works throughout the city and into the surrounding neighborhoods. We’re regularly in the San Francisco neighborhoods of the Mission District, Noe Valley, Chinatown, and Visitacion Valley. If you’re in one of those areas and planning a remodel with a structural scope, we’re already familiar with the building types and the permit paths. Same team, same standards.
Serving San Francisco, CA — Our Local Coverage Area
We’re based in the San Francisco 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 Francisco
Not always, but often. If the building has a ground-floor garage or large openings at street level and you’re remodeling above that level, DBI typically triggers the soft-story retrofit requirement under the 2016 Soft-Story Retrofit Program standards. If the building hasn’t already been retrofitted, the permit for your kitchen remodel will almost certainly require it. Call (855) 382-3257 and we’ll check your building’s retrofit status before you spend a dollar on cabinets.
San Francisco’s code requires windows in exposed locations to meet specific design wind pressures based on the building’s height, exposure, and proximity to the coast. In the fog belt near Ocean Beach or the Presidio, that often means impact-rated or high-design-pressure windows from manufacturers like PGT or CGI. We spec windows to the site, not the neighborhood average, and the installation includes the flashing and weather barrier details the inspector checks.
A bathroom remodel in a historic San Francisco rowhouse generally starts with a DBI building permit, plus Planning Department review if the building is a potential historic resource. If you’re moving walls, you’ll need structural calculations. If you’re touching plumbing, a separate plumbing permit applies. We pull all of it, schedule the inspections, and keep the job moving while the paperwork clears. Call (855) 382-3257 for a quote that includes the full permit path.
Allowances are dollar amounts set aside for materials the homeowner selects later, like fixtures, lighting, or tile. A low allowance makes the quote look cheaper. Then the homeowner picks a real fixture, the allowance gets exceeded, and the change order arrives. We write allowances based on actual product pricing from our 50+ brand partners, so a KraftMaid cabinet line or a Kohler fixture isn’t a surprise upcharge. Our quotes show the allowance number next to the real product, not a placeholder.
In neighborhoods built on bay fill like SoMa and Mission Bay, the ground can behave like liquid during a seismic event. A permitted addition requires a geotechnical report and foundation details engineered for the specific soil, not a standard slab. The inspection record proves the work met those requirements. That matters when you sell the house and when you file an insurance claim. Unpermitted work in a liquefaction zone is a liability that follows the property. Call (855) 382-3257 and we’ll walk you through the geotech step before you buy the lumber.
Get Your San Francisco Project Started
If you’re planning a remodel, addition, or ADU in San Francisco, call Norm and the team at (855) 382-3257. We’ll bring the full scope: engineering, permits, materials, and one crew that answers to you. From the cabinets to the roof and the foundation in between, it’s one contract and one point of accountability. Estimates are free, and the quote will actually reflect what San Francisco’s code requires. Call today.
Written by Norm Castellano, Owner at Toolbox Contractors, serving San Francisco with full-scope general contracting.