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 Fullerton
Finding a general contractor in Fullerton who understands the city’s split personality, flat downtown tract infill on one side and Raymond Hills slope work on the other, is harder than it should be. We’re San Mateo Construction, and we’ve worked both sides of that divide. A single contractor who can re-roof a 1950s tract house, remodel the kitchen in a 1920s Craftsman near the depot, and engineer a hillside addition up in Summit is rare. That’s the job we do, from roofline to foundation, under one contract and one point of accountability. Call (855) 901-7266 for a free estimate, and we’ll talk through what your site actually needs.
Why San Mateo Construction Is Fullerton’s Preferred General Contractor Company
Fullerton homeowners keep calling us back for a simple reason: we price the job the way the site demands, not the way a generic bid sheet says. The 92832 and 92834 zip codes sit on flat ground with narrow alleys and shared driveways, which means staging, parking, and debris haul-off get priced into the scope up front. The 92835 and 92831 hillside lots need drainage, retaining-wall, and grading reviews before any framing starts. Our owner, Noel Carrington, has built the company around that kind of honesty. When a Fullerton customer gets a written scope of work with allowances and a draw schedule tied to inspection sign-off, they know what the number means.
We carry the certifications and insurance a real general contractor should, but what matters more locally is that we pull permits, pass inspections, and coordinate every trade from one phone number. Down near the Fullerton train depot, we’ve sequenced alley-side kitchen remodels so a neighbor’s driveway never got blocked. Up in Raymond Hills, we’ve underpinned decks and added retaining walls before a single stud went up. That is what local reputation is built on.
Styles & brands we work with







Hire a General Contractor in Fullerton
Hire a General Contractor in Fullerton when the scope spans more than one trade, and you’ll get one accountable team instead of a patchwork of subcontractors. The work here ranges from a $14,000 kitchen remodel in a 1950s tract home to a $130,000 hillside addition that needs engineered footings. On the north and west sides, where the same postwar plan repeats block after block, we can often engineer a plan set once and reuse it across near-identical lots, which lowers design and plan-check cost. Near downtown, where 1920s bungalows have original foundations and knob-and-tube wiring, the permit and structural story gets more involved. A typical Fullerton job runs through zoning review, plan check, rough-in inspection, and final sign-off, and we manage that entire sequence.
Whole-Home and Additions in Fullerton
Older Fullerton bungalows rarely have footprints that match how families live now. A home addition in Fullerton typically runs $45,000 to $130,000, depending on whether the lot is flat or sloped. Up in the 92835 zip, an addition nearly always includes some retaining work. In the flat 92833 tract, we’re usually tying into the existing roofline and matching the original exterior.
Kitchen and Bath Remodels
A Fullerton kitchen remodel runs $14,000 to $45,000, while a bathroom lands between $9,000 and $28,000. In a downtown bungalow, the real cost drivers are hidden: original cloth wiring, load-bearing walls, and a floor system that was never meant for modern cabinet weight. We scope those realities before you commit to a finish.
General Contractor Services in Fullerton
General Contractor Services in Fullerton cover the whole scope: re-roof, re-side, re-window, rebuild the kitchen, add a bathroom, pour a paver driveway, and convert a garage to an ADU, all under one contract. That is the difference between us and a remodeler who only touches interiors. A Fullerton garage conversion runs $30,000 to $80,000, and an ADU starts around $90,000 and can reach $220,000 depending on site access and slope. We do not hand you a bid that ignores alley parking permits or daily debris haul-off, because we know those line items exist on every tight Fullerton lot.
ADU and Garage Conversions
The 1946 through 1960 tract stock on Fullerton’s north and west sides is unusually well-suited to ADU conversion: the lots are wide, the garages are detached, and the plan sets repeat. We have worked with prefab manufacturers including Abodu, Dvele, and Plant Prefab to shorten build time. A Fullerton ADU is a real construction project, not a kit, and it needs the same foundation, drainage, and utility work as any new structure.

Exterior Systems and Roofing
Fullerton’s Santa Ana winds and summer heat make roofing and siding choices matter more than they do at the coast. We install GAF, CertainTeed, and Owens Corning roofing, James Hardie siding, and PGT windows with Fullerton PGT service when needed. If a winter storm blows in and a foothill lot drains poorly, we are the same contractor who can fix the grade and the wall, not a third vendor you have to hunt down.

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.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Fullerton
We carry a curated portfolio of over 50 name-brand suppliers, and for Fullerton customers we keep the most relevant product lines moving through our supply chain fast: KraftMaid and Wellborn cabinetry, Cambria and Silestone tops, Kohler and Moen fixtures, GAF and Owens Corning roofing, PGT and CGI windows, and James Hardie siding. We help you choose the right tier for your budget, premium for a hillside kitchen up in Raymond Hills, proven value for a tract rental conversion off Nutwood. You are choosing from brands we have vetted, not whatever a supplier happened to have on the dock.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Fullerton Homes
- Tight downtown infill lots with no staging room. Alleys near the Fullerton depot are narrow, and a full tear-out renovation needs a daily plan for parking, debris removal, and delivery sequencing. We write the access premium into the bid on day one.
- Pre-war bungalow walls and wiring that are not cosmetic. Original knob-and-tube or early cloth wiring and load-bearing walls hide behind pretty trim. We scope the rough-in and structural work before any finish decisions lock in.
- Hillside drainage and retaining-wall failures. Raymond Hills and Summit lots drain toward the structure more often than homeowners realize. Shallow footings, water at the foundation line, and slope creep are recurring Fullerton site conditions we fix before framing.
- Shared-wall and party-wall notice on older housing stock. Downtown Fullerton’s older homes are close together. We file party-wall notices, coordinate work hours, and keep a clean site so the neighbor’s inspection sign-off and good will do not become a hidden project cost.
Pricing for General Contractor in Fullerton, CA
Fullerton construction pricing sits between flat Anaheim and the hill towns to the north, because the city spans both build environments. A home addition in Fullerton runs $45,000 to $130,000. An ADU runs $90,000 to $220,000. A kitchen remodel lands between $14,000 and $45,000, and a bathroom between $9,000 and $28,000. If the site is a flat 1950s tract lot, access is simple and the price stays on the lower end. If it is a Raymond Hills slope with drainage and retaining work, plan for the upper end. The number you get from us is a written scope with allowances, not an estimate that quietly omits alley permits and debris haul-off.
| Service | Fullerton Market Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
Call (855) 901-7266 for a free estimate built around your specific Fullerton lot. We will walk the site, check access, and give you a real number.
We Also Serve Cities Near Fullerton
If your project sits just over the border, we cover Anaheim, La Habra, Placentia, and Brea as well. The same team that knows Fullerton’s tract-house plan reuse and Raymond Hills slope work handles those neighboring cities. Learn more about how we approach General Contractor work across the whole region, or see our local page for Fullerton to understand exactly how we serve this city.
Serving Fullerton, CA — Our Local Coverage Area
We’re based in the Fullerton 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 Fullerton
Because Fullerton is not flat once you leave the downtown and west-side tracts. Raymond Hills and Summit lots require underpinning, regrading, retaining walls, and drainage work before any framing starts, and those costs do not exist on a flat Anaheim slab lot. Add to that Fullerton’s older bungalow stock with original foundations and cloth wiring, and the quote legitimately runs higher. We price the actual site, not the square footage alone. Call (855) 901-7266 and we will walk your lot and explain the difference in writing.
Yes, a garage conversion to an ADU in Fullerton requires building permits, plan check, and inspections, and depending on the site, it may also trigger drainage, parking, and setback review. We pull the permits, run the plan set through the city, and manage every inspection. A Fullerton garage conversion runs $30,000 to $80,000. We would be glad to give you an exact quote for your specific garage and lot.
We file party-wall notice before work begins, coordinate work hours with the affected neighbor, and write a staging and delivery plan that keeps shared driveways open. On tight Fullerton alley lots near the depot, that plan often includes off-site staging and daily debris haul-off, which we price into the bid from the start. We have learned that a neighbor kept informed is a neighbor who does not stall your inspection sign-off.
Often yes, and that is one of the unusual advantages of Fullerton’s north and west sides. Because the same 1946 through 1960 tract plans repeat across entire blocks, we can sometimes engineer a foundation retrofit, small rear addition, or ADU conversion once and reuse the stamped plan set lot-to-lot. That lowers design and plan-check cost on your job. We will still verify your lot’s specific conditions, but the reuse is real.
We write the access plan into the scope from the beginning: alley parking permits, daily debris haul-off, off-site material staging, and a clean-up schedule. That accessibility line item is exactly what generic bids omit from a Fullerton downtown lot, and it is the source of most change orders. Our written scope of work includes it up front, so the price we quote is the price the job costs. Call (855) 901-7266 for a free estimate that accounts for your specific site access.
Call (855) 901-7266 today and schedule a free, no-pressure estimate with our General Contractor team in Fullerton. We will walk your lot, talk through what the site really needs, and give you a written number you can plan around.
Written by Noel Carrington, Owner at San Mateo Construction, serving Fullerton and the surrounding cities since the company’s founding.