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
Hiring a general contractor in San Mateo means finding a team that understands mid-century stucco tract homes, strict seismic codes, and the headache of coordinating structural work with finish trades. Most projects here are second-story additions, rear extensions, or full gut remodels of 1940s-1960s ranch houses on tight lots. Seaside Contractors handles the whole scope, from engineered shear walls to Cambria countertops, under one accountable team. If you’re planning a remodel or addition anywhere in San Mateo, 94401, 94402, 94404, or 94497, call us at (833) 589-8103 for a free, line-item estimate.
Why Seaside Contractors Is San Mateo’s Preferred General Contractor Company
San Mateo homeowners don’t need a contractor who dabbles. They need someone who has pulled structural permits from San Mateo’s building department, knows which stucco walls hide missing shear panels, and has weathered the city’s spare-the-air stop-work orders. Our General Contractor team works across every trade, which means the same crew that specs a GAF roof also manages Schluter waterproofing in the shower and a KraftMaid cabinet install in the kitchen. That single point of accountability matters when a second-story addition has to tie into a 1950s foundation.
Glen Sorrento leads our projects. His approach is direct: we’ll tell you what the code requires, what the inspectors will look for, and where your money should go and where it shouldn’t. Homeowners across San Mateo, from Baywood to Hillsdale, bring us in after getting bids that skip hold-downs or ignore shear-wall requirements. We correct those and document everything. Stamped plans, passed inspections, county records. That documentation is what protects you later.
We schedule San Mateo work tightly around the marine layer season. Exterior projects like roofing and stucco get priority May through October. Interior gut remodels run year-round. You’ll get a schedule that reflects San Mateo’s actual weather patterns, not a generic timeline.
Styles & brands we work with
Hire a General Contractor in San Mateo
Hire a General Contractor in San Mateo when the job touches structure, spans multiple trades, or requires engineering. On most 1940s-1960s single-story stucco tract homes here, that means a second-story addition or rear extension that must tie into the original build. A typical home addition in San Mateo runs $45,000 – $130,000 depending on square footage, foundation work, and whether the existing walls need retrofitted shear panels. That’s not a number to guess at. We provide fixed, line-item quotes before you sign anything.
Structural Work and Permits
Second-story additions in San Mateo require a separate structural permit. The building department reviews engineered drawings for shear walls, hold-downs, and moment frames. A cheap bid that skips this will fail inspection and leave your home vulnerable during winter storms.
Full-Scope Remodels
Whole-home remodels in San Mateo typically combine kitchen, bath, and structural work in one permit package. We manage the sequencing so you’re not living in a construction zone any longer than necessary. Cabinetry, countertops, tile, and plumbing fixtures all get specified early to avoid material delays.
General Contractor Services in San Mateo
General Contractor Services in San Mateo cover the scope most specialty remodelers can’t touch. Roof replacement runs $8,000 – $20,000 here, with GAF, CertainTeed, and Owens Corning systems matched to the wind exposure of your specific lot. San Mateo ECO Window Systems service for impact window installation spans $8,000 – $25,000 depending on opening count and whether your home sits on an exposed hillside. We’ll match the material to the project, not push a premium line because it’s what we stock.
Kitchen and Bath Packages
Kitchen remodels in San Mateo run $14,000 – $45,000, and bathrooms $9,000 – $28,000. We coordinate KraftMaid or Wellborn cabinetry with Cambria, Silestone, or Caesarstone countertops and Kohler or Toto plumbing fixtures. Behind the wall, we install Schluter waterproofing systems in showers and tub surrounds. The hidden work is what determines whether a remodel lasts fifteen years or five.
Outdoor and Hardscape Scope
San Mateo lots are small, which makes paver patios and driveway replacements a common add-on to any remodel. Paver patio installation runs $3,500 – $11,000. We source through Belgard, Techo-Bloc, and Unilock for permeable options that handle winter rain without ponding.
What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
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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 maintain 50+ brand partnerships across every trade, which means San Mateo homeowners get real material choice without switching contractors. Need impact-rated windows through PGT or CGI for a hillside home in Laurelwood? We can spec them. Want Toto plumbing fixtures and American Standard tubs in the same bath? No problem. Roofing options span GAF, CertainTeed, Owens Corning, and Tamko. We keep common components accessible for San Mateo jobs, so warranty parts and replacement materials don’t sit on a dock for two weeks. One contractor. Every trade.
See the difference
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After
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AfterCommon General Contractor Problems We See in San Mateo Homes
- Bids that omit engineered shear walls and hold-downs on second-story additions. This is the most expensive mistake we correct in San Mateo. A home addition over a 1950s ranch without proper seismic tie-downs is a structural liability, and the building department will flag it at inspection.
- Spare-the-air stop-work orders on exterior projects. The Bay Area Air Quality Management District can halt exterior work like stucco, roofing, or demolition with little notice on summer alert days. We check the calendar before scheduling and build buffer days into every San Mateo timeline.
- Unpermitted structural work discovered after storm damage. If the original work was never inspected, the insurance claim gets complicated fast. We pull permits, pass inspections, and give you the paper trail that keeps a claim moving.
- Poor moisture management on stucco and flashing. San Mateo’s marine layer keeps things damp eight months a year. Cheap flashing and skipped drainage planes show up as rot and mold within a few winters. We detail every exterior penetration and waterproof every curb, sill, and pan.
Pricing for General Contractor in San Mateo, CA
What you’ll spend depends mostly on structural scope, not finish level. Here are the line-item ranges we quote most often for San Mateo projects:
| Project | Typical San Mateo Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| Roof Replacement | $8,000 – $20,000 |
| Impact Window Installation | $8,000 – $25,000 |
Hillside lots in Baywood and Laurelwood add engineering cost, but the details are in the quote, not buried in change orders later. Every estimate is free, line-itemed, and fixed once you approve. Call (833) 589-8103 to schedule yours.
We Also Serve Cities Near San Mateo
Beyond San Mateo itself, our crews work regularly in Highlands-Baywood Park, Foster City, Belmont, and Hillsborough. Each has its own permitting quirks, but the structural rules that govern San Mateo apply across the Peninsula. If you’re in a neighboring city, San Mateo is our home base for Peninsula projects, and we’ll bring the same code-first approach to your job.
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
San Mateo’s building code requires roof assemblies rated for the wind zone mapped to your specific lot, which is typically 90 – 110 mph for most of the city but higher on exposed hillside properties. That means uplift-rated fasteners, properly nailed sheathing, and ridge and edge details specified in the manufacturer’s engineering report. A compliant quote lists the exact shingle or metal system and its wind rating, not just “replacement roof.” If the bid doesn’t mention wind rating, it’s incomplete. Call (833) 589-8103 and we’ll walk you through what your roof actually needs.
Spare-the-air days prohibit outdoor burning and can trigger restrictions on equipment and activities that generate fine particulates, which includes some exterior demolition and certain stucco or roofing operations. Summer and early fall are the risk window. We plan exterior phases in spring and late fall, and keep a two-day buffer for any San Mateo project with outdoor scope. If you’re bidding a remodel, ask the contractor how they handle an air-quality stop-work order. The wrong answer is “we’ll figure it out on site.”
Yes. Every second-story addition in San Mateo requires a structural permit, engineered drawings stamped by a California-licensed engineer, and multiple inspections including foundation, shear wall, and final structural. The building department reviews hold-down specifications and connection details before you pour concrete or frame a wall. Skipping the permit is not a shortcut; it’s a liability that voids insurance and complicates resale. We handle the full permit package. Call (833) 589-8103 for an estimate that includes it.
A compliant hillside foundation quote in Baywood or Laurelwood includes a soils report or geotechnical review, engineered retaining design if the slope requires it, specified foundation depth and reinforcement, and drainage details that move water away from the structure. It also includes the permit fees and engineering stamps as line items. A quote that just says “foundation: included” is not a real quote. We itemize every component, and we’ve built and inspected enough San Mateo hillside work to know when a slope needs more than the minimum. Call (833) 589-8103 for a detailed estimate.
Documented structural compliance, meaning stamped plans, passed inspections, and county records, can reduce your homeowners insurance premium after a major remodel. In one Baywood project, our crew engineered a new moment frame and Simpson Strong-Tie hold-downs for a second-story addition over an unbolted 1950s foundation. After inspection sign-off, the homeowner’s premium dropped 12% because the retrofit was fully documented. Insurers price risk. Paperwork proves the risk is lower. Call (833) 589-8103 and we’ll build the documentation into your project from day one.
If you’re planning a remodel, addition, or full-scale renovation in San Mateo, get a contractor who knows the codes, the inspectors, and the houses. Call (833) 589-8103 to schedule your free estimate with General Contractor in San Mateo services from Seaside Contractors.
Written by Glen Sorrento, Owner at Seaside Contractors, serving San Mateo with structural, remodel, and full-scope general contracting.