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 Fontana
Hiring a general contractor in Fontana means finding someone who understands what happens when you open up a 1950s tract home off Sierra Avenue or a 1970s slab-on-grade off Foothill. San Mateo Construction handles the full scope: kitchen remodels, bathroom work, additions, ADUs, roofing, windows, and deck construction, all under one contract. Noel Carrington, our owner, runs every Fontana job with the same rule: inspection first, written allowances, and a signed change order before any surprise work begins. Call us at (855) 901-7266 for a free estimate.
Why San Mateo Construction Is Fontana’s Preferred General Contractor Company
We’ve worked the Fontana market long enough to know the difference between a 92335 mid-century slab home and a newer 92337 subdivision. That matters because a remodel quote from someone who only works newer Rancho Cucamonga tracts can miss what an older Fontana house actually needs once walls are open. Our General Contractor team carries that local knowledge into every estimate. Fontana homeowners call us because we name the specific failure modes we expect to find before we ever swing a hammer, and we write the contract so those findings don’t become expensive surprises.
We work across all four Fontana ZIPs: 92335, 92336, 92337, and 92331. Our crews know the stucco-and-slab housing stock around the old Kaiser steel plant neighborhoods, the 1980s tracts north of the 210, and the newer subdivisions pushing toward Bloomington. That familiarity keeps our quotes honest and our schedules realistic. San Mateo Construction is a licensed general contractor with a curated portfolio of more than 50 brand relationships, which means we’re not limited to whatever a single supplier happens to stock this month.
Styles & brands we work with







Hire a General Contractor in Fontana
Hiring a General Contractor in Fontana means bringing in someone who can handle everything from a kitchen island to a full home addition under one accountable contract. The work typically runs $14,000 – $45,000 for a kitchen remodel, $9,000 – $28,000 for a bathroom, and $45,000 – $130,000 for an addition, with specific pricing in the table below. Fontana homeowners reach out when they’re planning a project that touches multiple trades and they don’t want to coordinate separate subs themselves.
Inspection-First Scope
Before we price your Fontana remodel, we look for what the house is hiding. The 92335 and 92336 housing stock went up fast during the steel-mill boom, and that means shallow footings, cloth-wrapped wiring, and framing that doesn’t meet current seismic-tie standards. We build the cost of finding those issues into the estimate, not as a surprise later.
Written Allowances, Not Open-Ended Picks
We write allowances for finishes into every Fontana contract so you know the budget before demo starts. KraftMaid or Wellborn cabinetry, Cambria or Silestone countertops, Kohler or Moen fixtures: you pick from curated tiers, and the numbers stay in writing. No mid-project drift.
General Contractor Services in Fontana
General Contractor Services in Fontana cover the full range of what an Inland Empire home needs, from a roof replacement to a garage conversion to a paver patio. The job mix here is different from Rancho Cucamonga: Fontana has a lot of older tract housing plus newer warehouse-era infill, so we see more slab repairs, more trenching for aging plumbing, and more ADU work tied to current setback and seismic-tie requirements. A typical General Contractor scope in Fontana runs anywhere from a $4,000 cabinet install to a $220,000 ADU.
Home Additions and ADUs
Fontana has a real need for accessory dwelling units and room additions, and many of the older slab homes require foundation and moisture testing before the city clears a permit. We handle that field-checking with the building department so the job moves forward without rework. A home addition in Fontana runs $45,000 – $130,000; an ADU runs $90,000 – $220,000.

Exterior and Interior Under One Contract
The same crew that re-roofs your Fontana house can remodel the kitchen, replace the windows, and pour a paver driveway. From roofline to foundation, one licensed contractor manages scheduling, procurement, and inspections. For slabs and driveways, home additions and garage conversions, we’re the single point of accountability.

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 Fontana
For Fontana projects, we stock and install name-brand materials you already know: Tamko roofing, Boral siding, PGT impact windows, and CGI. We also carry the broader brand portfolio: GAF, Owens Corning, CertainTeed, James Hardie, Therma-Tru in Fontana, KraftMaid, Wellborn, Cambria, Silestone, Caesarstone, Kohler, Grohe, Toto, Moen, Belgard, Unilock, Techo-Bloc, Master Halco, and Ameristar. That matters here because Fontana’s heat and Santa Ana winds punish cheap exterior materials fast. When we recommend a product, it’s one we trust to hold up through a 100°F Inland Empire summer.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Fontana Homes
- Slab cracks from expansive soils. The clay soils under 92335 and 92336 expand and contract through Fontana’s hot, dry summers and winter wet spells, which means slab movement is common. We field-check the foundation before pricing any addition or load-bearing change.
- Cloth-wrapped wiring and undersized panels. Mid-century Fontana homes were built to 1960s electrical codes. Opening a wall for a kitchen or bath remodel frequently means rewiring to current standards, and that’s a cost we write into the estimate upfront.
- Framing that doesn’t meet current seismic-tie standards. Many steel-mill-era Fontana homes went up on shallow footings with minimal wall-to-foundation connections. A permit inspection will trigger the upgrade, so we quote it before demo, not after.
- UV-degraded exteriors and failed waterproofing. Fontana sits in the Santa Ana wind corridor, and a decade of sun and wind takes a toll on stucco, roofing, and window flashing. We inspect for moisture intrusion and failed seals as part of every exterior scope.
Pricing for General Contractor in Fontana, CA
General contractor pricing in Fontana follows the table below, and these ranges reflect what we actually see in this market, not national averages. A small kitchen remodel in Fontana runs $9,000 – $20,000 while a full kitchen runs $14,000 – $45,000. The biggest factors are the age of your home, whether a permit triggers code upgrades, and the finish tiers you choose. We give every Fontana client a written line-item quote so you can see exactly where the money goes. Call (855) 901-7266 to schedule a free estimate.
| Project Type | Fontana Price Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Roof Replacement | $8,000 – $20,000 |
| Window Replacement | $4,500 – $15,000 |
| Paver Driveway Installation | $7,000 – $18,000 |
We Also Serve Cities Near Fontana
San Mateo Construction serves all of Fontana and the surrounding Inland Empire communities. If you’re in Bloomington, Rialto, Glen Avon, or Pedley, we provide the same general contracting scope and brand access. Read more about how we serve the broader area on our General Contractor in Fontana page, or call (855) 901-7266 to talk through your project.
Serving Fontana, CA — Our Local Coverage Area
We’re based in the Fontana 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 Fontana
A Fontana remodel quote moves because so many 92335 and 92336 homes were built fast during the steel-mill boom on shallow footings, with cloth-wrapped wiring and framing that doesn’t meet current code. We handle this with an inspection-first scope, written allowances in the contract, and a signed change order before any surprise work begins. Call (855) 901-7266 for an exact quote, and our estimates are free.
Opening a wall in a Fontana home typically triggers electrical upgrades (rewiring or panel replacement), framing corrections to current seismic-tie standards, and waterproofing fixes if moisture intrusion is found. We write these likely upgrades into the original estimate so the draw schedule doesn’t blow past your scope. Call (855) 901-7266 to walk through what your specific home might require.
Yes, many additions in Fontana’s older steel-mill neighborhoods require foundation and moisture testing before the city will clear a permit, because the mid-century slab homes were often built quickly on shallow footings. We field-check this early and include the testing in our written estimate. Call (855) 901-7266 for a free estimate that accounts for Fontana’s building department requirements.
We schedule Fontana concrete pours for early morning and use sun-management and curing control so the slab doesn’t cure too fast and crack. Hot, dry, Santa Ana-wind conditions demand a different approach than coastal pours, and our crews adjust accordingly. Call (855) 901-7266 to schedule a slab, driveway, or foundation consultation.
Fontana construction projects are billed on a draw schedule tied to completed phases, with written allowances for finishes and a signed change order for any discovered condition work. You get a line-item quote before work starts, and nothing gets billed outside the written scope. Call (855) 901-7266 to schedule a free estimate and see your project’s billing structure in writing.
Call San Mateo Construction at (855) 901-7266 to schedule a free estimate for your Fontana home. Noel Carrington and our team will walk the property, inspect what’s actually there, and write a scope that holds up when the walls come open.
Written by Noel Carrington, Owner at San Mateo Construction, serving Fontana and the Inland Empire.