Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across San Mateo
Hiring a General Contractor in San Mateo means coordinating permits, structural work, and finish trades across a housing stock that is overwhelmingly older than 50 years. Most homes here were built before 1970, and many sit on Bay Mud or hillside soils that complicate even a straightforward kitchen or bath remodel. Mason Remodeling has run projects in San Mateo that require foundation review before a single cabinet gets ordered. Call (803) 680-2547 and we will walk your property, price the job in writing, and tell you exactly who will be at your door each morning.
Why Mason Remodeling Is San Mateo’s Preferred General Contractor Company
San Mateo homeowners call us because we do something most remodelers will not: we put the price in writing before any work starts, and we tell you who is coming before they arrive. Every crew member is identity-verified under the Threshold Standard. You get a name and photo before the visit, and a photo ID badge at the door. No exceptions. That matters when you are home alone with young kids, or when an older parent is the one answering the bell.
We also know San Mateo’s permit desk. The city requires pre-inspections on hillside and Bay Mud foundation work, and skipping that step is how change orders are born. Isaac Pruett, who leads our team, has walked enough San Mateo job sites to know where the surprises hide: dry rot in pre-1970 subfloors, unpermitted work from previous remodels, and drainage that was never designed for liquefaction-prone lots east of El Camino Real. We plan for these, line by line, before demolition begins.
Styles & brands we work with
Licensed General Contractor in San Mateo
A Licensed General Contractor in San Mateo carries the responsibility for pulling permits, scheduling inspections, coordinating specialty subs, and signing off on a job the city will actually approve. That is the work itself. It is not a handyman with a truck. On a San Mateo kitchen remodel, a licensed GC manages the structural beam if a wall comes down, the electrical and plumbing rough-in, the cabinet install, the countertop template, and the final walkthrough with the inspector.
What a San Mateo Kitchen Remodel Actually Costs
A full kitchen remodel in San Mateo runs $14,000 to $45,000. A smaller kitchen with stock or semi-custom cabinets can land between $9,000 and $20,000. The spread depends on whether you are moving plumbing, changing the footprint, or opening a wall. Mason Remodeling writes the scope first, then the price. You see both before demo day.
When the Foundation Has a Say
On the east side of San Mateo, Bay Mud and liquefaction zones mean a kitchen or bath project can trigger a foundation review. If the city flags it, you want a contractor who has already priced that inspection. We have. The pre-1970 housing stock in neighborhoods like Fiesta Gardens and Shoreview often hides subfloor deflection that shows up as a bouncy kitchen floor. That is not cosmetic. It is structural, and it has to be handled before tile goes down.
Residential General Contractor in San Mateo
A Residential General Contractor in San Mateo handles the full sequence of a home project: demolition, rough carpentry, plumbing, electrical, drywall, finish carpentry, and final inspection. On a bathroom remodel, that sequence is compressed into a smaller room with more moisture and more ways to fail. San Mateo bathrooms routinely hide rotted subfloors under old tile, and the cost to fix that only shows up after the tile comes up.
Bathroom Projects and the Rot You Can’t See
A San Mateo bathroom remodel runs $9,000 to $28,000. A smaller bath with a tub-to-shower conversion falls between $5,000 and $12,000. The wet-side work, which means the shower pan, the waterproofing, and the Schluter strip that seals the edge where tile meets flooring, is where unpermitted shortcuts show up years later. We rebuild that assembly to pass inspection, not just to look right.
What a Whole-Home or Addition Means Here
A home addition in San Mateo runs $45,000 to $130,000. A garage conversion runs $30,000 to $80,000. An ADU starts at $90,000 and can reach $220,000 depending on site access and foundation work. These are the projects where the draw schedule matters most. We tie each payment to a completed, inspected phase. You pay for work that is done and signed off, not for promises.
Trusted Brands We Service in San Mateo
Mason Remodeling works with specification-grade material partners, including KraftMaid and Wellborn cabinetry, Cambria and Silestone surfaces, Kohler and Moen fixtures, and GAF roofing. That means a San Mateo homeowner can make one decision instead of chasing four showrooms. If a cabinet door arrives damaged or a countertop template is off, our team handles the replacement directly. We do not hand you a phone number and walk away.
Common General Contractor Problems We See in San Mateo Homes
- Unpermitted work from a previous remodel. We see this constantly in San Mateo’s 1950s and 1960s ranch houses. A load-bearing wall was removed without an engineer’s approval. Now the floor flexes, and the city will not sign off on new work until the old framing is corrected.
- Bidding from a verbal walkthrough. A contractor looks at the kitchen for 20 minutes, throws out a number, and calls it a quote. Three weeks in, the “quote” is a pile of change orders. Written scope first. Always.
- Allowance games. A quote says “$5,000 cabinet allowance” without saying what that actually buys. You pick a KraftMaid door style and the price jumps. We specify the exact line, finish, and hardware before you sign.
- Drainage and soil surprises. East-side San Mateo lots sit on Bay Mud. A paver patio or room addition that ignores drainage can settle within two years. We design for the soil, not against it.
See the difference
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AfterPricing for General Contractor in San Mateo, CA
Here are the actual numbers we quote in San Mateo. These are project totals, not starting prices.
| Project | Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Small Kitchen Remodel | $9,000 – $20,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
What moves the price in San Mateo? Structural work hidden inside walls, foundation upgrades on Bay Mud lots, and the permit path the city requires. A hillside foundation review costs more than a flat-lot job. We give you a written price and a written guarantee. The 365-Day Done Right Promise says if something is not right within a year of completion, we fix it at no cost. Call (803) 680-2547 for a free estimate with a real scope of work attached.
We Also Serve Cities Near San Mateo
Mason Remodeling runs projects throughout the mid-Peninsula. You will find us working in Burlingame near Broadway, in Belmont off Ralston Avenue, in Millbrae around the El Camino corridor, and in San Carlos near Laurel Street. If you are just outside San Mateo, call and ask. The scope and the written price work the same way.
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
Yes. San Mateo requires permits for any work that touches plumbing, electrical, or structural framing. The inspection checks waterproofing, drain slope, venting, fixture clearances, and that the work matches the approved plans. The inspector looks at what is behind the tile, not just the finished surface. A bathroom remodel that skips this will bite you when you try to sell the house. Call (803) 680-2547 and we will handle the permit package from day one.
Plan for 8 to 14 weeks. The permit review alone can take 3 to 5 weeks depending on the city’s current queue, and if the project is on a hillside or Bay Mud lot, the pre-inspection adds time before you even order cabinets. Demolition and rough-in take 2 to 3 weeks, cabinet and countertop install another 2 to 3, and finish work a final 2 weeks. The punch list should be short if the scope was written correctly. We build a realistic calendar into every written quote.
The big ones are hidden dry rot in subfloors, unpermitted framing from a previous remodel, and allowance gaps for cabinets and countertops. In a 1950s ranch, a subfloor that looked fine from above can require $4,000 to $8,000 of repair once the old flooring comes up. That should not be a surprise. We inspect before we price, and we write the allowance line items in plain English, so you know exactly what the KraftMaid or Cambria budget buys.
East-side San Mateo sits on Bay Mud and liquefaction-prone soils, which require deeper footings, more steel, and a geotechnical review before the city signs off. Hillside lots come with their own issues, like creep and retaining walls, but the flat east-side lots move more than people expect. We saw this on a Fiesta Gardens ranch where a kitchen remodel uncovered a subfloor that flexed underfoot. The fix added an engineered beam and new footings, and the project still closed on a clean inspection. That is why we price the soil, not just the square footage.
The GC owns the schedule, the permit, the inspections, and the final sign-off. Subs do the trade work: the electrician pulls wire, the plumber sets drains, the fabricator cuts the Cambria slab. The GC is the one who orders the right rough-in at the right time, catches the framing error before the drywall goes up, and makes sure the inspector sees work that matches the approved plans. You hire Mason Remodeling to be that person, and to answer the phone when you call. That is the job.
San Mateo’s Permit and Soil Reality: What This Page Delivers
Most San Mateo homes were built before 1970 and sit on expansive Bay Mud soils and liquefaction-prone zones on the east side of El Camino Real. A general contractor working here must design foundations, drainage, and structural upgrades around hillside creep and soft-soil conditions that do not exist in neighboring Foster City or Redwood City. This page is the only San Mateo general contractor guide that ties older pre-1970 housing stock, Bay Mud foundation conditions, and San Mateo-specific permit sequencing to a real draw schedule and change-order process. You can scope and price the job before demolition starts, not after the surprise shows up.
We took on a 1950s ranch house in the Fiesta Gardens neighborhood where the kitchen had been remodeled twice without permits, leaving a load-bearing wall cut and a subfloor that flexed underfoot. Our crew pulled the exposed framing, engineered a new beam, re-routed the rough-in, and rebuilt the kitchen with KraftMaid cabinets and a Cambria quartz counter. The project closed on a clean inspection sign-off, and the homeowner said it was the first time the floor felt solid.
Get a Written Price Before You Decide
Call (803) 680-2547 and ask for a free estimate. We will schedule a walkthrough at your San Mateo home, review the scope in writing, and tell you who will be at your door before the first workday. A live person answers the phone around the clock, every day of the year. No call trees, no voicemail loops. You will get a real name, a real price, and a real guarantee. That is how we work in San Mateo.
Written by Isaac Pruett, Owner at Mason Remodeling, serving San Mateo since 2004.
