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 Ontario
Finding a general contractor in Ontario who understands your home’s specific construction history shouldn’t feel like guesswork. Framework Contractors works across Ontario’s older postwar tract neighborhoods and its newer south- and east-edge subdivisions, and we know what each type of home tends to need. If you live in the 91762, 91764, 91798, or 91758 zip codes, we’re nearby and ready to walk your property. Call (844) 681-3590 to schedule a free estimate with Noel Carbajal and the team.
Why Framework Contractors Is Ontario’s Preferred General Contractor Company
Ontario homeowners keep calling us back because we treat a builder-grade kitchen upgrade the same way we treat a full ADU build: with permits, written allowances, and a single point of accountability. Our clients in the 91762 corridor and the newer master-planned communities south of the 60 constantly tell us the same thing: they wanted one contractor who could handle interior finishes and exterior systems without juggling three specialty crews. That’s exactly how we work. Noel Carbajal runs every Ontario project with the same expectation: the scope is in writing before the first wall opens, and the HOA paperwork gets checked before concrete gets poured. We know which Ontario subdivisions require architectural review before a fence, patio, or addition, and we build that step into the schedule instead of treating it like an afterthought.
Our reputation in Ontario rests on the brands we install and the paperwork we don’t skip. We’re the General Contractor team that shows up with KraftMaid and Cambria samples in one hand and a permit application in the other. No coordination headaches. No rogue subcontractors. One contract, one crew, one accountable name on the project.
Styles & brands we work with
Hire a General Contractor in Ontario
Hire a General Contractor in Ontario when you want one accountable team for the full scope of a remodel, not three phone numbers and a prayer. For Ontario owners in the 91761 and 91762 tract-home corridors, that usually means a kitchen or bathroom refresh where the builder-grade cabinetry and laminate tops are ready to be replaced. For owners on the city’s south and east edges, it often means a home addition, garage conversion, or ADU where the HOA architectural review runs parallel to the city permit.
Builder-Grade Upgrades Done Right
We see a lot of Ontario homes where the MDF cabinet doors have swollen at the bottom edge and the laminate countertops have started delaminating at the seams. That’s not a repair situation; that’s a replacement opportunity. We re-scope those kitchens with new cabinetry, Cambria or Caesarstone tops, and a proper rough-in for a Moen or Kohler fixture, all priced in writing before we start.
Additions and ADU Work
Ontario’s lot sizes vary enough that an attached addition makes sense in some neighborhoods while a detached ADU fits better in others. We build both, and our ADU work through prefab partners like Dvele and Boxabl means faster framing and a tighter build schedule than stick-built alone. Expect an ADU in Ontario to run $90,000 – $220,000, with a standard home addition starting around $45,000.
General Contractor Services in Ontario
General Contractor Services in Ontario cover everything from swapping out a single bathroom vanity to managing a whole-home renovation, and most of our work sits somewhere in between. Ontario’s housing stock spans mid-century ranch homes through the 91761 and 91764 corridors to newer subdivision product on the south edge, so we scope each project against the home’s actual age and systems, not a one-size-fits-all script. A kitchen remodel here typically runs $14,000 – $45,000; a bathroom remodel is $9,000 – $28,000.
Kitchen and Bath Remodeling
These are the two projects Ontario owners call us about most, and for good reason: they’re the spaces where builder-grade materials show their age fastest. We install the cabinets, counters, backsplash tile, and plumbing rough-ins ourselves, and we bring the brands you actually want to pick from, including KraftMaid, Wellborn, Cambria, Kohler, Grohe, Toto, Moen, and Delta.
Whole-Home and Exterior Scope
Because we handle the full envelope, an Ontario project can move from interior framing to James Hardie siding, PGT windows, and a Belgard paver patio without changing contractors. That matters when your HOA requires exterior elements to be approved as a single submission. One scope, one submittal, one accountable team from the roof down to the foundation.
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.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Ontario
We work with the brands you already trust, and we carry local stock knowledge for the products Ontario homeowners ask for most. Your materials, our craftsmanship: pick Cambria or Caesarstone for the kitchen counters, KraftMaid or Wellborn for the cabinets, Kohler or Grohe for the bath fixtures, and let our installers handle everything from the rough-in to the final trim. We also install prefab ADUs from Dvele, Mighty Buildings, and Boxabl, which is something most residential crews in Ontario can’t offer. Built to spec, not to shortcut.
See the difference
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After
Before
After
Before
AfterCommon General Contractor Problems We See in Ontario Homes
- Hard water and the Inland Empire’s mineral load. Ontario’s water is hard, and the original builder-grade plumbing trim and valve cartridges in tract homes show it within ten years. We often find shower valves so caked with scale they should have been replaced five years earlier, and we quote the fixture upgrade rather than the band-aid repair.
- Expansive soil movement under slab foundations. The dry inland climate and expansive soils around Ontario make grading and drainage details a real issue, especially in older neighborhoods off the 91761 side. We check foundation and moisture conditions before any addition or patio goes in, because a crack now is cheaper than a structural repair later.
- Builder-grade MDF and laminate that dies first. In the newer subdivisions south and east of Ontario, we see the same failure sequence repeatedly: the kitchen cabinets absorb humidity at the toe kicks, the laminate tops separate at the seams, and the original vinyl plank starts cupping. Owners replace these finishes as their first major upgrade, and we scope it properly instead of refreshing what should be removed.
- The HOA architectural review the owner never filed. South- and east-edge Ontario subdivisions enforce exterior standards, and we have seen pavers, fences, and even patio covers flagged after the work was done because nobody submitted the architectural application. We file that paperwork before anything goes in, so a finished patio doesn’t become a compliance problem.
Pricing for General Contractor in Ontario, CA
Ontario’s market sits between the older Inland Empire cities and the newer master-planned communities, and our pricing reflects that range. Here are the line items our Ontario clients see most often:
| Project | Typical Ontario Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
| Backsplash Installation | $800 – $2,500 |
| Bathroom Remodel | $9,000 – $28,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| ADU Construction | $90,000 – $220,000 |
| Home Addition | $45,000 – $130,000 |
What moves the number within each range is the material selection, the condition of the existing rough-ins, and whether any structural work triggers HOA or city review. We give every Ontario client a written, line-item quote before any wall opens, and we don’t change the price once the scope is locked unless you ask for a change. Call (844) 681-3590 for an exact quote on your project.
We Also Serve Cities Near Ontario
Our Ontario crew regularly works in Montclair, Upland, Chino, and San Antonio Heights, and the same local permitting knowledge carries over. If you’re in one of those cities and want a contractor who already knows the Inland Empire’s quirks, call us at (844) 681-3590.
Serving Ontario, CA — Our Local Coverage Area
We’re based in the Ontario 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 Ontario
Yes, if the upgrade touches a structural or covered system and you don’t check the warranty terms first. The builder warranty in Ontario’s newer south- and east-edge subdivisions typically covers structural elements and major mechanical systems, but cutting into a load-bearing wall, moving a bath rough-in, or altering the electrical panel can void coverage on anything downstream of that change. We review your builder’s warranty language before we finalize scope, and we stage the work so untouched systems stay covered. Call (844) 681-3590 and we’ll walk you through what your specific warranty allows.
Yes, and skipping it is the most expensive mistake we see in Ontario’s master-planned communities. Most HOAs in the 91762 and 91764 subdivisions require architectural review before any exterior structure goes in: fences, paver patios, patio covers, sheds, driveway changes, and additions. If you pour the concrete first and file later, the HOA can make you tear it out. We handle the submittal as part of our scope, and we don’t start exterior work until the approval letter is in hand. Call (844) 681-3590 if you’re not sure whether your project needs review.
The kitchen cabinets and countertops are almost always the first upgrade, because builder-grade MDF and laminate fail faster than anything else in an Ontario home. We see the same pattern across the city: cabinet doors swollen at the bottom edge, laminate tops peeling at the seams, and a kitchen that simply doesn’t function the way the owners need it to. After that, we typically move to the primary bathroom, where the original fiberglass shower surround and builder trim are ready for a walk-in shower and proper fixture rough-in. A kitchen remodel in Ontario runs $14,000 – $45,000; a shower replacement runs $3,000 – $8,500.
An allowance is a specific dollar amount written into your contract for a material selection you haven’t finalized yet, like the exact slab of Cambria or the Kohler fixture set. Our allowances are what we’d typically expect you to spend in Ontario, not a buried under-estimate, and we track every allowance in writing as you make selections. Draw schedules work the same way: you pay portions of the contract at defined milestones, usually deposit, rough-in, and final, instead of the whole amount up front. We review both documents line by line before any work starts.
Yes, if the work touches structure, electrical, plumbing, or anything the City of Ontario’s building division considers a change to the home’s systems. A simple cabinet swap with no electrical or plumbing changes can often be done without a permit, but the moment you move a rough-in, cut a wall, add a circuit, or build an addition, the permit is not optional. We pull permits for everything that requires them, and we don’t ask you to sign off on unpermitted work. Call (844) 681-3590 and we’ll tell you straight whether your project needs one.
Written by Noel Carbajal, Owner at Framework Contractors, serving Ontario and the surrounding Inland Empire since the company’s founding.