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 Carlos
Hiring a general contractor in San Carlos means handing over a project that will touch your home’s structure, its systems, and your family’s daily life for months. We get that. Ashford Contractors works throughout the 94070 zip code, from the flats around downtown to the hills above Alameda de las Pulgas, and we know what San Carlos planning and building will ask for before we ever submit drawings. If you’re weighing a two-story addition, a detached ADU, or a full interior gut on a postwar ranch, call (877) 752-3868 and we’ll walk the property with you before you commit to anything.

Why Ashford Contractors Is San Carlos’s Preferred General Contractor Company
San Carlos homeowners tend to run into the same three frustrations: city planning kickbacks on two-story massing, wet-winter delays on exterior work, and remodelers who won’t touch both the inside and the outside of the house under one contract. We built our process around those specific realities. Our experience with San Carlos’s own planning and building department means we address neighbor privacy and light impacts in the plan set before submittal, not after a rejection letter. That alone saves weeks on additions and ADUs in the downtown flats.
We also schedule dry-season work the way this climate demands. Roofing, foundation, and exterior envelope scopes get compressed into the May-through-October window whenever possible, and our contracts reflect that schedule in writing so you’re not staring at a tarp-covered opening in February. When you call (877) 752-3868, you’re talking to the same project manager who will be on your lot, not a call center.
Led by Glen Mossier, our team carries every one of our projects from the first estimate through final inspection. One contract, one point of contact, and a written draw schedule you can actually follow.
Styles & brands we work with







General Contractor Services in San Carlos
General Contractor Services in San Carlos cover the full scope of a renovation or addition: structural work, rough-in, finishes, and the permitting path that ties it all together. Most homeowners here call us when a project touches more than one trade and they don’t want to coordinate electricians, plumbers, framers, and roofers themselves. On a typical San Carlos ranch, that means opening walls and finding original single-wall construction or minimal insulation, then making the house right before we close anything up.
Whole-Home Coordination
We run all trades under one contract, one schedule, and one set of plans. That keeps a kitchen remodel from stalling because the electrician wasn’t booked for the right week. It also keeps the budget honest, since allowances and change orders are written into the contract before demo starts.

Structural and Load-Bearing Work
Load-bearing wall removal, beam replacement, and subfloor repair on slab or shallow-penetration foundations are regular parts of our San Carlos work. Homes built in the 1950s and 1960s weren’t framed for open-concept layouts, so we engineer the transfer path and pull the permit before cutting anything. The result is a clean open room, and a house that still carries its roof load correctly.

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.
Construction Company in San Carlos
A Construction Company in San Carlos that handles both remodeling and ground-up or addition work is what most larger projects here actually need. We’re not a specialty sub, and we’re not a handyman service. We’re the general contractor who carries your project from the first structural drawing to the final city inspection, including every trade in between. On San Carlos lots, that often means working within tight driveway-to-street setbacks and staging materials in a neighbor’s unused driveway or a street-permit zone.
Additions and ADU Construction
Additions and ADUs in San Carlos run into specific local review. The city’s planning department looks hard at second-story massing, neighbor privacy, and light impacts before issuing permits. We prepare plans with those concerns already addressed, which shortens the review cycle and avoids the back-and-forth that stalls projects for months. ADU construction in San Carlos generally runs $90,000 to $220,000 depending on size, foundation work, and utility connections.
Roof and Exterior Envelope Work
Roof replacement in San Carlos runs $8,000 to $20,000 for most homes, and the underlayment and flashing details matter more here than in drier inland cities. Wet winters mean moisture intrusion is the primary failure mode, so we spec self-adhered underlayment at eaves and valleys and detail every penetration. If your roof is part of an addition, we tie the new and existing roof planes together the way the city inspector will ask to see it.

Trusted Brands We Service in San Carlos
We source materials from manufacturers San Carlos homeowners know and trust. That includes Master Halco for fencing and gate systems, Ameristar for ornamental steel fencing, and Jerith for aluminum fence lines that hold up in fog and rain. When a spec calls for vinyl, we work with Bufftech because their panel profiles and gate hardware stand up to repeated wet-dry cycles without warping. Because we order directly through our supplier accounts, San Carlos customers aren’t waiting on big-box store stock. We spec the right material for the application, order it, and schedule delivery to the lot so it’s on-site when the crew is ready for it. That keeps projects moving instead of waiting on back-ordered panels or posts.
See the difference
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AfterCommon General Contractor Problems We See in San Carlos Homes
After working across San Carlos for years, these are the issues that come up most often:
- Original single-wall and minimal-insulation construction. Most postwar ranch homes in 94070 were built with no wall insulation and single-pane windows. Opening a wall for a remodel means finding that reality, and the cheap quote doesn’t include the correction work. We write wall assembly upgrades into the initial scope so you’re not surprised mid-demo.
- Two-story or ADU plans rejected on privacy and light grounds. The city reviews second-story massing at the local level, and neighbors on tight downtown-flats lots will comment. Plans that ignore window placement and upper-floor setbacks get kicked back. We address those concerns in the drawing set before submittal.
- No dry-season schedule for exterior work. A roof tear-off or foundation dig started in November can sit open through weeks of rain. We compress exterior scopes into the dry season and write the schedule into the contract, so you know when framing gets sealed and dried in.
- Change orders that could have been allowances. Gut remodels on older San Carlos homes always uncover something. We write realistic allowances and a clear change-order process into every contract, so the conversation is about line items, not disputes.
Pricing for General Contractor in San Carlos, CA
General contractor pricing in San Carlos tracks the scope and the structural reality of 1950s-60s ranch homes. Here are the ranges we quote most often for this market:
| Project | Typical San Carlos Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Roof Replacement | $8,000 – $20,000 |
What moves the number? Foundation work on slab homes, the condition of the existing electrical and plumbing, the level of cabinet and countertop finishes, and how much exterior envelope work is in scope. A kitchen remodel in San Carlos runs $14,000 to $45,000, and a bathroom remodel $9,000 to $28,000, depending on layout changes and fixture grades. Every estimate from us is a written line-item quote, not a ballpark. Call (877) 752-3868 to schedule your free estimate.
We Also Serve Cities Near San Carlos
Our service area covers the mid-Peninsula beyond San Carlos. We work regularly in Belmont, Redwood Shores, Redwood City, and Emerald Lake Hills, carrying the same full-scope General Contractor approach from roofline to foundation. If you’re just outside the 94070 boundary, call (877) 752-3868 and we’ll confirm coverage for your street.
Serving San Carlos, CA — Our Local Coverage Area
We’re based in the San Carlos 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 Carlos
Yes. San Carlos operates its own planning and building department, so permits go through the city, not San Mateo County or a neighboring jurisdiction. That means local review of setbacks, second-story massing, neighbor privacy, and light impacts before construction. We prepare permit sets that anticipate those review points, which keeps the approval path shorter. Call (877) 752-3868 for a project-specific look at what your plans will need.
Rain-heavy late fall through spring drives when we open exterior walls, pour foundations, and tear off roofs. We schedule those scopes for the dry season and build the schedule around weather windows, not optimistic timelines. Interior work like kitchen and bathroom remodels can run year-round, but any scope that opens the building envelope gets sequenced carefully. Call (877) 752-3868 and we’ll map a realistic schedule for your project.
A compliant San Carlos quote includes the structural engineering for any load-bearing changes, a dry-season schedule for exterior scopes, written allowances for the surprises older homes hide, and permit fees paid to the city. It also includes moisture detailing on roofs and flashing that meets wet-winter exposure. Quotes that leave those out usually balloon with change orders later. We show you every line before you sign.
Yes, and we’ve done it on Holly Street corridor lots where the ADU footprint left zero space for materials staging. It takes careful delivery scheduling, street-use permits, and a crew that knows how to work tight. On one postwar ranch, we ran a detached ADU and a second-story addition simultaneously, kept the roof underlayment and flashing details tied to moisture requirements, and held the dry-season schedule through rough-in. The work passed city inspection without a single staging-related violation.
We do. Original slab or shallow-penetration foundations and single-wall framing are standard in San Carlos ranches, and removing a load-bearing wall means installing a properly sized beam and transferring that load to the foundation. We handle the engineering, the permit, and the work, including subfloor and joist repair where older framing has settled or been cut by previous remodels. Call (877) 752-3868 and we’ll tell you what your specific floor plan can support.
Written by Glen Mossier, Owner at Ashford Contractors, serving San Carlos and the mid-Peninsula with full-scope general contracting.