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 Mateo
When you’re planning a remodel, addition, or ADU in San Mateo, the contractor you choose determines whether the project runs on schedule or stalls in permit review and site constraints. Framework Contractors works across the full envelope of your home, from kitchen remodels and bathroom renovations to exterior work like roofing, windows, and fencing, under one contract and one accountable team. We know the tight lots in the Avenues, the raised foundations near downtown, and the fault-zone review process that shapes every permit conversation here. Call (844) 681-3590 to schedule your free estimate.
Why Framework Contractors Is San Mateo’s Preferred General Contractor Company
San Mateo homeowners don’t have time to coordinate four separate crews, argue about who’s responsible for what, and chase permits across multiple desks. That’s exactly what we eliminate. As a full-scope General Contractor, Framework Contractors handles every phase of your project, and we’re structured around one point of contact from the first walkthrough to final inspection. Noel Carbajal, our founder, has built Framework around a simple idea: one contractor should be accountable for every system in the home, from the roof down to the foundation.
We work extensively in San Mateo, including the neighborhoods around downtown, the Avenues, Baywood, and Hillsdale. Our San Mateo clients consistently tell us the same thing: the permit process here is not like other Bay Area cities. Fault-zone review, liquefaction mapping, and soil reports can slow a project to a crawl if your contractor hasn’t done this work locally before. We have. That’s why homeowners in San Mateo call us first when they’re planning a major remodel, a second-story addition, or a backyard ADU.
Styles & brands we work with
Hire a General Contractor in San Mateo
Hire a General Contractor in San Mateo when you’re looking at a project that touches multiple systems: structural work, plumbing, electrical, finishes, and exterior enclosure. This is not a handyman job. It’s a permitted, inspected, engineered job, and in San Mateo specifically, that means your contractor needs to understand seismic code requirements, soil conditions, and the city’s review process. We quote this work honestly and specifically. A home addition in San Mateo typically runs $45,000 to $130,000 depending on foundation conditions and scope. A kitchen remodel runs $14,000 to $45,000. A bathroom remodel runs $9,000 to $28,000.
Seismic and Foundation Work
San Mateo sits directly on the San Andreas Fault, and large parts of the flatlands are built on bay fill and alluvial soils. Older homes with raised foundations often need bolting, cripple-wall bracing, and shear-wall upgrades before any interior remodel makes sense. We include this work in our scope up front rather than discovering it mid-project, which is how you avoid change orders and budget surprises.
Permit Navigation and Lot Constraints
Tight lots, narrow side yards, utility easements, and setback rules all affect what you can build and how we stage the site. We handle the site-specific design work, the variance applications where they’re needed, and the coordination with the building department so you don’t spend six months in limbo. San Mateo’s review process rewards contractors who prepare the seismic and geologic documentation correctly the first time.
General Contractor Services in San Mateo
General Contractor Services in San Mateo should cover the full scope of a remodel or renovation without handing you off to three different companies. If you’re planning a kitchen remodel, a bathroom remodel, a whole-home interior renovation, a room addition, a basement finishing project, or a deck, Framework Contractors has crews for all of it. ADU construction in San Mateo runs $90,000 to $220,000 for a detached unit, and a garage conversion runs $30,000 to $80,000. Those ranges reflect the seismic and site work that’s non-negotiable here, not optional upgrades.
ADU and Garage Conversion Expertise
We build ADUs through partnerships with leading prefab manufacturers including Abodu, Dvele, Mighty Buildings, Boxabl, and Plant Prefab, and we also handle traditional stick-built units. On a narrow lot in the Avenues, we converted a garage into an ADU while navigating a utility easement and tight staging. Our crew used a mini-excavator and hand-digging to protect the easement, and we scheduled concrete pours early to avoid neighbor complaints. The result was a fully permitted unit with a new subfloor and seismic upgrades, completed without a single change order because the scope of work and allowances were detailed upfront.
Full Home Remodels and Additions
A whole-home remodel in San Mateo often means working inside an occupied or partially occupied house, which changes how we sequence work, protect finished spaces, and manage dust. Additions on tight lots require careful vertical planning because you don’t have the side yard to spread out. We plan staging, delivery access, and material storage into the quote from day one, which is why our San Mateo projects stay on schedule even when the lot is small.
What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in San Mateo
We work with the brands you already trust, because your materials should be your choice, backed by our craftsmanship. Our portfolio includes 50+ named manufacturers across cabinetry, countertops, roofing, windows, doors, plumbing, fencing, and hardscape. For San Mateo clients doing exterior work, we regularly install Cambridge Pavers and Oldcastle hardscape products, and we use Quikrete and Sakrete concrete materials for driveways, walkways, and structural pours. You pick the brand. We build it to spec, not to shortcut. Having this depth of brand relationships means we’re not locked into one manufacturer’s product line when you need a specific paver texture or cabinet finish that matches your home.
See the difference
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After
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After
Before
AfterCommon General Contractor Problems We See in San Mateo Homes
- Foundation issues on raised-floor homes: San Mateo’s older neighborhoods, especially those built between the early 1900s and 1950s, sit on raised foundations that were never engineered for seismic loads. Many have rotted mudsills, under-sized cripple walls, or missing anchor bolts, all of which must be addressed before interior work begins.
- Water intrusion on flatland lots: Marine influence and winter atmospheric river events put real pressure on drainage systems. Poorly graded lots and older foundations in the flatlands are prone to water intrusion during heavy rain, while dry summers cause soil shrinkage that can widen existing foundation cracks. We address drainage and waterproofing as part of the project scope, not as an afterthought.
- Staging and parking constraints on tight lots: Many San Mateo lots don’t have room for a full crew truck, a material delivery, and a dumpster at the same time. We coordinate deliveries for specific days, keep the site clean, and plan material storage so we don’t block a neighbor’s driveway or violate the city’s right-of-way rules.
- Permit delays from incomplete seismic documentation: The city’s fault-zone and liquefaction review process is exact. Contractors who submit incomplete soil reports or missing shear-wall details get bounced back, and the homeowner waits. We prepare geological and structural documentation thoroughly on the first submission, because we’ve done this enough times in San Mateo to know what the plan checker looks for.
Pricing for General Contractor in San Mateo, CA
Here’s what we’re seeing in San Mateo’s current market for the projects we handle most often. These are honest ranges, not bait numbers:
| Project Type | Typical Range in San Mateo |
|---|---|
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Home Addition | $45,000 – $130,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
What actually changes the number is scope: whether the job requires foundation work, structural upgrades, utility relocation, or variance hearings. A garage conversion with a utility easement will land higher than a simple interior remodel. We give written line-item quotes and we don’t change the price once work starts unless you change the scope. Call (844) 681-3590 for an exact quote, free.
We Also Serve Cities Near San Mateo
Our crews work across the Peninsula. Beyond San Mateo proper, we serve Highlands-Baywood Park, Foster City, Belmont, and Hillsborough, and we’re familiar with the specific permit requirements and housing stock in each. If you’re one town over and planning a remodel, give us a call at (844) 681-3590.
Serving San Mateo, CA — Our Local Coverage Area
We’re based in the San Mateo 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 Mateo
It means your project will require a soils report and likely a structural engineer’s review before the building department approves your permit. San Mateo sits directly on the San Andreas Fault, and large portions of the flatlands are mapped as liquefaction zones. Expect to lose several weeks, not days, to this review if your contractor hasn’t done it locally before. Call (844) 681-3590 to have us look at your property and tell you exactly what applies.
Yes, but it requires site-specific design and often a variance, because many older San Mateo lots have utility easements and narrow side yards that push the unit’s footprint into awkward corners. We’ve handled this on multiple properties, including one in the Avenues where we hand-dug around an easement and shifted the ADU footprint to maintain required setbacks. The permit path is slower, but it’s entirely buildable with the right survey and design.
San Mateo restricts construction noise to daytime hours and prohibits work on Sundays and major holidays. The exact windows are set in the municipal code, and violating them creates real friction with neighbors and code enforcement. We schedule loud work, concrete pours, and demo within the permitted windows, and we communicate the schedule to adjacent properties before work starts so there are no surprises.
When your project touches a shared wall, a zero-lot-line condition, or a foundation within a few feet of a neighbor’s structure, the city will require a party-wall notice and a signed agreement before permitting moves forward. We prepare the documentation, notify the adjacent owner early, and walk them through what the work means for their property. Handling this before the permit submission prevents work stoppages and fines later. Call (844) 681-3590 to discuss your specific lot.
Most older San Mateo homes need foundation bolting, cripple-wall bracing, and shear-wall upgrades to meet current code, especially in the pre-1950 neighborhoods near downtown and the Avenues. Soft-story conditions are also common in multi-family buildings along El Camino Real. We fold these retrofits into the remodel scope so the structural work is done once, correctly, instead of being revisited later.
Ready to talk about your project? Call Framework Contractors at (844) 681-3590 for a free estimate, or reach out to schedule a walkthrough of your San Mateo property. One contractor. Every system.
Written by Noel Carbajal, Owner at Framework Contractors, serving San Mateo and the surrounding Peninsula.