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
Remodeling Company in Ontario, CA
Home renovation in Ontario, CA means working with housing stock that spans mid-century tract homes to newer master-planned subdivisions, all under Inland Empire heat that pushes materials harder than coastal climates ever will. Elmwood Contractors has served Ontario since 2011, coordinating every trade from interior remodels to exterior envelope work under a single project plan. We’re a single-source general contractor, not a patchwork of subs, and we name the brands going into your home before the contract is signed. Call (866) 253-8554 for a free estimate.
Why Ontario Homes Are Different
Ontario sits squarely in the Inland Empire logistics corridor along the I-10, where summer temperatures routinely climb 15 to 20 degrees above coastal LA. That heat changes how concrete cures, how roofing underlayment performs, and how quickly exterior paint and sealants break down. Homes in the 91761 and 91762 ZIP codes are largely mid-century tract builds with original cast-iron plumbing, single-pane windows, and framing that predates current shear-wall standards. In the 91764 ZIP and the master-planned communities near Ontario Ranch, we see newer construction, but often with builder-grade finishes that homeowners want upgraded within five to ten years. Santa Ana winds kick up dust and drive wildfire smoke into the valley, which means exterior work here needs real dust control and sealants rated for high UV and wind-driven grit. Permits run through the City of Ontario Building Department, and any structural change triggers CalGreen and Title 24 energy requirements, especially on additions and ADUs. We plan for those requirements from day one so the permit review doesn’t stall the job.
Styles & brands we work with







Our Main Ontario Services
Ontario homeowners call us most often for two things: full general contracting when a project touches multiple trades, and whole-home or major-room remodeling when the scope outgrows a single specialty contractor. Here’s what each involves in Ontario specifically.
General Contractor in Ontario
When a project touches framing, electrical, plumbing, roofing, and finishes, someone has to own the schedule and the accountability. In Ontario, where the contractor pool skews heavily toward warehouse and distribution-center work, finding a residential general contractor who will actually answer the phone mid-project is harder than it should be. We coordinate the entire job, including the named brands going into your home, from KraftMaid cabinetry to James Hardie siding, under one contract and one point of contact. General Contractor in Ontario.

Home Remodeling in Ontario
Mid-century Ontario homes were built with smaller kitchens and single bathrooms, and the layouts show their age fast. Remodeling here often means removing a wall, relocating plumbing, upgrading a 100-amp panel, and reworking the floor plan around how a family actually lives now. We handle the full interior-to-exterior scope, including the building-envelope work that Ontario’s heat and Santa Ana winds demand. Home Remodeling in Ontario.

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.
Home Renovation in Ontario
Home renovation in Ontario covers the broadest set of changes a house can undergo: reconfiguring floor plans, replacing every finish surface, upgrading mechanical systems, and often repairing what a decades-old Southern California tract home never had done properly. The two most common renovation paths we take in Ontario are whole-home updates on mid-century builds in the 91761 and 91762 ZIPs, and targeted renovations in newer homes where builder-grade materials have run their course. Inland Empire heat accelerates wear on sealants, exterior paint, and roofing, so a renovation plan here has to think about the building envelope, not just cabinets and tile. Elmwood Contractors is a Home Renovation contractor with one project plan, one accountable contact, and brand selections locked in writing before work begins.
Home Renovation Contractors
Signs you need it
Multiple rooms need work at once, mechanical systems are aging, and no single trade can solve the full scope without someone coordinating the schedule.
What it costs in Ontario
A full home renovation in Ontario typically falls between $45,000 and $130,000 depending on square footage, structural changes, and how much of the building envelope gets replaced.
How we do it
We walk the entire property, build a scope that covers interior and exterior work, lock the brand selections, then run the project on one schedule with one accountable point of contact.
Home Renovation Companies
Signs you need it
You have a list of changes that spans kitchens, baths, flooring, windows, and exterior work, and you don’t want to coordinate four separate crews and four separate bids.
What it costs in Ontario
Renovation-company projects in Ontario range from $14,000 for a modest kitchen refresh to $130,000 for whole-home work, with most mid-size renovations landing between $30,000 and $70,000.
How we do it
We provide written line-item pricing before the contract is signed, coordinate every trade through our own schedule, and walk the job with you at completion against a fixed scope.
What Home Renovation Costs in Ontario
| Item | Typical range in Ontario |
|---|---|
| Small Kitchen Remodel | $9,000 – $20,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
How long does a home renovation take in Ontario?
Most whole-home renovations in Ontario run 8 to 16 weeks depending on permit review at the City of Ontario and whether structural changes are involved. Single-room renovations typically finish in 3 to 6 weeks. Call (866) 253-8554 for a realistic timeline on your specific scope.
Will the price change once renovation work starts?
No, if the scope doesn’t change, the price doesn’t change. We use written line-item quotes and fixed pricing with no change orders unless you ask for something new. Call (866) 253-8554 to schedule a free estimate and get exact numbers.
Brands We Service in Ontario
We stock and install product lines from KraftMaid, James Hardie, Tuff Shed, and Plant Prefab across Ontario jobs. Local supply runs through our Inland Empire vendors, and most non-custom materials arrive within a week of order. See our brands for the full roster.
See the difference
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AfterPricing for Remodeling Company in Ontario, CA
| Service | Typical range in Ontario |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Small Kitchen Remodel | $9,000 – $20,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Roof Replacement | $8,000 – $20,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Vinyl Fence Installation | $3,500 – $9,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
Ontario prices push toward the upper end of these ranges when a mid-century home needs panel upgrades, seismic shear-wall work, or full window replacement alongside the visible remodel. We give written, fixed, line-item pricing before the contract, so the number we quote is the number you pay unless you add scope.
Neighborhoods We Serve in Ontario
We work throughout Ontario, from the older tract streets near Euclid Avenue to the newer master-planned communities around Ontario Ranch and everything in between. Each neighborhood has its own pattern: mid-century homes in the central and north ZIPs tend to need full system upgrades, while newer builds more often get kitchen, bath, and finish-level renovations.
- Ontario Ranch
- Downtown Ontario
- Archibald Ranch
- College Park
- New Haven
Service Area – Cities Near Ontario
Elmwood Contractors also serves the surrounding Inland Empire communities. If you’re next door in Montclair, CA, Upland, CA, Chino, CA, or San Antonio Heights, CA, the same crew, the same brand selection, and the same fixed pricing apply.
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 Remodeling Company in Ontario
Yes. We handle permit applications, plan submittal, and inspections through the City of Ontario Building Department for every project that requires one. Structural changes, additions, ADUs, and most electrical or plumbing work all need permits here, and we make sure the paperwork is right before work starts.
We schedule concrete pours and roofing work for early-morning hours when temperatures are lower, and we use curing methods and sealants designed for high-heat Inland Empire conditions. Exterior paint and sealant work gets scheduled around Santa Ana wind days so dust doesn’t embed in wet finishes.
Yes, in most cases. We phase the work room by room, keep a sealed workspace, and sequence the dust-heavy demo before the finish work. For major structural changes or full gut renovations, we’ll tell you honestly if a temporary move-out makes the job faster and safer. Call (866) 253-8554 to talk through your specific project.
What happens when you call
- 1A real person answersNo phone trees — talk to a local construction pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Ontario Customers Say
"Every inspection passed first time. The building department clearly knows him and that made the whole process easier."
— Emily Reed"Weekly site meeting, every week, with a written summary afterward. I always knew where the money and the schedule stood."
— Michelle Hoffman"Allowances in the contract were realistic rather than artificially low to make the bid look good."
— Daniela Martinez