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 La Habra
Homeowners across La Habra call us when a remodel or addition needs one accountable team from first footing to final walkthrough. We handle the scope most contractors won’t: hillside foundations, room additions on sloped lots, ADUs, kitchen and bath remodels, roofing, windows, and paver driveways, all under a single contract. Noel Carrington leads our crews, and his approach is simple: engineer it right, permit it properly, and document everything so your insurer has what it needs later. For a free estimate on your La Habra project, call (855) 901-7266.
Why San Mateo Construction Is La Habra’s Preferred General Contractor Company
We work the hillside streets above La Habra Boulevard regularly, so the soil and grade conditions here don’t slow us down the way they do crews that drive up from flat-lot territory. Homeowners in the 90631, 90632, and 90633 ZIP codes tell us the same thing: they want a contractor who already understands what a La Habra lot demands. That local knowledge is built into every quote we write, not added as a change order after excavation starts.
Our La Habra customers keep us honest. The projects we’ve completed range from single-story tract home kitchen remodels near Euclid Street to full second-story additions off Whittier Boulevard. What holds that work together is the same thing on every job: written line-item quotes, permits pulled and inspected, and one team accountable from demo to final paint.
We don’t chase volume across Orange County. We’d rather know the code requirements in La Habra cold, including the hillside grading and seismic retrofit details that flatland crews in Fullerton or Brea rarely see, and apply that to every project we take on here.
Styles & brands we work with







Hire a General Contractor in La Habra
Hire a General Contractor in La Habra when you’re planning a project that touches structure, utilities, or weatherproofing, or when you want one crew managing every trade instead of four separate vendors. Mid-century homes here were built well, but they weren’t built for today’s seismic standards, and many sit on expansive clay that moves with each wet winter and dry summer. A licensed general contractor handles the permits, the engineered drawings, the scheduling, and the inspections so you’re not left holding a partially permitted addition that your insurer won’t cover.
Room Additions and Foundation Work
A home addition in La Habra typically runs $45,000 to $130,000 depending on square footage, slope, and what the soils report says. On hillside lots, expect deeper footings and possibly retaining walls, which is exactly the kind of work that shouldn’t be quoted by someone who’s only ever built on flat fill in Brea.
Remodels on Sloped and Hillside Lots
Kitchen remodels here range $14,000 to $45,000, and baths $9,000 to $28,000, with the same caveat: if the work involves exterior walls or load-bearing changes on a sloped lot, the permit will ask for engineering. We don’t skip that step. We price it honestly up front.
Find out more about our General Contractor team and what a single-contract project actually looks like.
General Contractor Services in La Habra
General Contractor Services in La Habra cover everything that touches a home’s exterior envelope and interior structure: roofing, windows, siding, kitchens, baths, additions, ADUs, driveways, and patios. For a 1950s ranch near La Habra Heights, that might mean a full re-roof plus a kitchen remodel under one contract. For a 1970s tract home off Idaho Street, it’s more likely a bath remodel, a window replacement, and a paver patio. One contract, one accountable team, no finger-pointing between trades.
ADUs and Garage Conversions
ADU construction in La Habra runs $90,000 to $220,000 when built traditionally, and garage conversions land between $30,000 and $80,000 depending on existing foundation condition and how much seismic work the plans call for. Through our manufacturer partnerships, San Mateo Construction also offers prefab ADUs through Plant Prefab and Boxabl, which can shift the cost and timeline meaningfully for certain lots.

Exterior Systems: Roofing and Driveways
Roof replacement here typically costs $8,000 to $20,000, and a concrete driveway install runs $4,500 to $12,000. Both are subject to La Habra’s specific wind and drainage requirements, which we handle as a matter of course. For a full look at how we serve this city, see our General Contractor in La Habra page.

What happens when you call
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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 La Habra
La Habra homeowners choose from a curated portfolio of 50+ name-brand suppliers rather than whatever’s left on a supply-house shelf. For roofing, that’s GAF or Owens Corning; for siding, James Hardie; for windows and doors, PGT and Therma-Tru; for cabinetry, KraftMaid or Wellborn. We stock common finishes and components for the brands most specified in La Habra, so lead times on repair or replacement pieces run shorter than a crew that has to special-order everything from a depot. Noel Carrington’s rule is simple: we help you choose the right material tier for your budget, never push a product because it’s easier for us to install.
See the difference
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AfterCommon General Contractor Problems We See in La Habra Homes
- Expansive adobe clay under sloped lots. The same soil that makes the hillsides above La Habra Boulevard scenic also moves enough to crack flat-slab additions and shallow footings. We soil-test and engineer footings to a depth flatland crews never plan for.
- Old oil-field remnants in the ground. Parts of La Habra were historically active oil territory, and we’ve hit old debris during excavation. That changes footing placement and sometimes requires remediation documentation, which we handle as part of the permit package.
- Santa Ana wind damage to roofs and windows. Dry, gusty conditions rip off improperly nailed shingles and stress old window flashing. We specify wind-rated materials and installation methods that meet current code, not what was standard in 1972.
- Mid-century homes without seismic retrofits. Many 1950s and 1960s tract homes have foundations designed before modern shear-wall requirements. When a remodel opens walls, the permit will trigger retrofit requirements, and we plan for those costs in the quote rather than discovering them mid-project.
Pricing for General Contractor in La Habra, CA
The table below reflects current market ranges for La Habra’s housing stock, including the slope and soil conditions that push costs here slightly above what you’d see in flat-lot Fullerton or Buena Park.
| Project | La Habra Price 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 |
| Concrete Driveway Installation | $4,500 – $12,000 |
Every quote we write for La Habra jobs includes the line items a cheap bid will quietly omit: soils testing when the lot sits on hillside clay, deeper engineered footings, seismic tie-in details, drainage correction, and as-built documentation for your insurer. Call (855) 901-7266 and we’ll walk the property with you and give you a written, line-item estimate, free.
We Also Serve Cities Near La Habra
Our crews work regularly in Fullerton, Brea, Buena Park, and Placentia, though the soil and slope conditions in La Habra make this city its own animal. If you’re in a neighboring city and want the same single-contract, brand-curated approach, we’re happy to help. Find us through our La Habra page or call (855) 901-7266.
Serving La Habra, CA — Our Local Coverage Area
We’re based in the La Habra 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 La Habra
La Habra hillside additions cost more because the expansive adobe clay over old oil-field remnants requires deeper engineered footings, possible retaining walls, and soil testing that a flat-lot Brea addition never needs. We saw this on a sloped ranch property up off West Road, where our crew opened a room-addition footing and hit that exact condition. Soil testing came in, the deeper footings and retaining wall went on the plan-checked drawings, inspection signed off, and the homeowner’s insurance carrier got the as-built documentation it wanted. Call (855) 901-7266 for a site-specific quote.
A La Habra permit protects you in three concrete ways: it forces the plan-check review that catches under-engineered footings, it creates an inspection record that proves the work met code, and it gives your insurer a paper trail if a Santa Ana wind or winter rain event damages the work. Unpermitted work, especially on hillside additions, becomes a liability when you sell and a claim denial when you file. We pull permits on every job where they’re required, no exceptions.
A compliant La Habra quote should include soils testing on hillside lots, engineered footing depths for expansive clay, seismic shear and tie-down details, drainage correction, and a written change-order process with a draw schedule. Cheap bids lump all those into a vague allowance and then surprise-price the slope drainage and seismic ties the permit actually calls for. Our quotes show those line items up front so there’s no discovery mid-excavation. Call (855) 901-7266 and we’ll show you what a full quote looks like.
Documented code compliance is what stands between you and a denied claim. If wind rips off a roof or rain saturates a hillside retaining wall, your insurer will ask for permits, inspection sign-offs, and as-built drawings. If you have them, the claim proceeds normally. If you don’t, the adjuster treats the work as substandard and may deny coverage. We document every permit and inspection on La Habra jobs and hand you the file at close-out.
Yes, most interior remodels in a 1960s La Habra tract home can proceed under a remodel permit that doesn’t trigger the full addition plan-check, provided you’re not moving structural walls or changing the roof line. A kitchen remodel typically runs $14,000 to $45,000, and a bath $9,000 to $28,000. If we find load-bearing walls or need to alter the foundation, we’ll flag it before we start, not after demo. Call (855) 901-7266 and we’ll walk the job with you.
Written by Noel Carrington, Owner at San Mateo Construction, serving La Habra and the surrounding Orange County hillside communities.