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 means working on 1950s-to-1970s tract homes while warehouses rise a few blocks away. We’re Alder Contractors, and we’ve served Ontario since 2013. Our Ontario clients need one contractor who can handle an older stucco home’s quirks, the city’s permit process, and the heat and Santa Ana dust that punish exterior work. Call (833) 467-7020 for a free estimate on your renovation.
Why Ontario Homes Are Different
Ontario sits at the heart of the Inland Empire’s logistics boom. Drive down any major corridor and you’ll see tilt-up concrete warehouse shells and slab-on-grade industrial builds going up along the I-10 and 60 corridors. But a few blocks away, the residential streets of the 91761, 91762, and 91764 ZIP codes hold something entirely different: single-story stucco tract homes built between 1950 and 1975, most on wood frames, many on raised foundations. That split defines construction in this city. The industrial side is all new concrete and steel; the residential side is aging stucco, original roofs, and narrow lots that make trenching and slab work far trickier than the open industrial parcels a few blocks away.
The climate pushes hard on those older homes. Ontario bakes in the dry Inland Empire summer, and Santa Ana winds drive dust into every seam and crack. Stucco and roofing crews here start early in the morning before the heat breaks 90 degrees. Intense UV breaks down exterior finishes faster than in coastal LA, so a house that would look fine in Long Beach shows its age in Ontario. But the dry climate does hold one advantage: our foundations stay stable, with less of the soil movement that plagues coastal and hillside communities.
Styles & brands we work with
Our Main Ontario Services
Two services account for most of the calls we take from Ontario homeowners.
General Contractor in Ontario
When an Ontario homeowner needs a multi-trade project – a kitchen remodel that runs into a plumbing wall, an addition that touches the roofline, an ADU in the backyard – a licensed general contractor matters more here than in a coastal city because of the age of the housing stock. An Ontario tract home from 1962 hides surprises: outdated wiring, cast-iron drains, termite damage in the sill plates. We have seen it all, and we manage every trade under one contract so you’re not juggling four vendors from four different shops. General Contractor in Ontario work is what we do every day.
Home Remodeling in Ontario
Most Ontario remodels start with a house that has good bones but tired finishes. The 1950s and 1960s floor plans in Ontario’s older neighborhoods often have smaller kitchens and bathrooms than today’s buyers want, which means opening walls, moving plumbing, and reworking layouts rather than just swapping out tile. We handle the full scope: interior demolition, framing, electrical, plumbing, drywall, finishes. If you’re planning a bigger change, our Home Remodeling in Ontario page goes deeper on what those projects involve in this city.
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 is a different animal than it is in newer cities. Most of the homes we open up in the 91761 and 91762 ZIP codes are 60-plus years old, with the electrical panels, cast-iron plumbing, and single-pane windows that come with that age. Renovating one of these houses usually means we’re not just updating finishes – we’re correcting six decades of deferred maintenance while we’re in the walls. The dry Inland Empire heat also matters: we schedule exterior work like stucco patches and window replacements for the cooler months when we can, because intense sun bakes fresh materials faster here than on the coast. If you’re weighing a full renovation, our Home Renovation hub walks through every phase.
Home Renovation Contractors
Signs you need it
Your Ontario home has multiple systems failing at once – old wiring tripping breakers, cast-iron drains backing up, single-pane windows leaking heat – and you’d rather do one comprehensive renovation than a string of piecemeal repairs.
What it costs in Ontario
A whole-home renovation by a general contractor in Ontario typically runs $45,000 to $130,000 depending on square footage, scope, and how much of the original systems need replacing.
How we do it
We open the walls once, replace the electrical and plumbing that fails inspection, reframe for the new layout, and close everything up with new drywall, insulation, and finishes – one team, one schedule, one contract.
Home Renovation Companies
Signs you need it
You’ve gotten three bids from three specialty contractors and none of them line up on scope, which tells you the project needs a single home renovation company managing all the trades together.
What it costs in Ontario
A home addition in Ontario runs $45,000 to $130,000, and a garage conversion runs $30,000 to $80,000 – both jobs where a whole-home renovation company saves time by coordinating trades that would otherwise wait on each other.
How we do it
We take the plan, sequence the trades in the right order – demo, rough framing, rough electrical and plumbing, insulation, drywall, finishes – and hold every sub accountable so you get one point of contact instead of four.
What Home Renovation Costs in Ontario
| Item | Typical range in Ontario |
|---|---|
| Kitchen remodel | $14,000 – $45,000 |
| Bathroom remodel | $9,000 – $28,000 |
| Home addition | $45,000 – $130,000 |
Does a full home renovation in Ontario require an architect?
Not always. If you’re changing the footprint or roofline, Ontario’s building department will want stamped drawings. Interior reconfigurations on an existing footprint usually don’t need an architect, and we coordinate the plan check either way. Call (833) 467-7020 to talk through your project.
How long does a whole-home renovation take in Ontario?
Most full renovations on Ontario’s 1950s-70s tract homes run 8 to 16 weeks depending on scope and what we find when we open the walls. Older homes sometimes reveal surprises, and we build that buffer into the schedule upfront. Call for a detailed timeline.
Brands We Service in Ontario
We build with materials from Techo-Bloc, Unilock, and Cambridge Pavers on hardscape jobs, plus more than 50 other name-brand partners across cabinetry, countertops, plumbing fixtures, roofing, windows, doors, and fencing. Parts are sourced locally, and we stage materials at our Rialto yard so an Ontario job doesn’t stall waiting on a backorder. See the full list on our brands page.
See the difference
Before
After
Before
After
Before
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 |
| Small bathroom remodel | $5,000 – $12,000 |
| Walk-in shower installation | $4,500 – $12,000 |
| Paver patio installation | $3,500 – $11,000 |
| Roof replacement | $8,000 – $20,000 |
| Window replacement | $4,500 – $15,000 |
| 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 |
What pushes costs up in Ontario is the age of the house. A 1963 tract home in the 91762 ZIP often needs electrical panel upgrades, drain replacement, and stucco repair before the renovation even starts. We price all of that upfront, and our quotes are fixed – no change orders surprise you mid-job.
Neighborhoods We Serve in Ontario
Alder Contractors works across Ontario, from the older postwar streets near downtown to the newer subdivisions on the eastern and southern edges. Most areas are within a 20- to 30-minute drive from our Rialto yard, and we schedule multiple Ontario jobs each week.
- Downtown Ontario and the historic Euclid Avenue corridor
- The 1950s-70s tract neighborhoods of the 91761 and 91762 ZIP codes
- East Ontario and the 91764 subdivisions
- South Ontario near the 91758 ZIP code
- North Ontario toward the I-10 corridor
Service Area – Cities Near Ontario
Our Ontario crews also cover the surrounding Inland Empire cities. We work regularly in Montclair, CA and Upland, CA to the west and north, plus Chino, CA and San Antonio Heights, CA to the south and east. If you’re just outside Ontario, chances are we’re already working nearby.
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
Most Ontario projects start within 2 to 6 weeks of the signed contract, depending on permit turnaround at the City of Ontario building department. Larger jobs that need stamped plans run longer. Call (833) 467-7020 and we’ll give you a realistic start date.
Many of Ontario’s newer subdivisions have HOAs that must sign off on exterior changes like roofing, windows, fencing, and paint colors. We prepare the material specs and drawings your HOA board wants to see, and we sequence the job so HOA approval doesn’t hold up the permit.
Yes. We pull all required City of Ontario permits, schedule the inspections, and close out the job with final sign-off. Ontario’s building department checks rough framing, electrical, plumbing, and final occupancy on most renovations, and we handle every one.
Ready to start your Ontario renovation? Call (833) 467-7020 for a free estimate. We’ll walk the house with you, talk through the scope in plain English, and give you a line-item price you can actually plan around.
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
"Excellent build. Costs came in about six percent over the original contract, driven mostly by material price movement during the build, which he documented each time."
— Luis Garcia"Framing crew was meticulous and the walls are straight everywhere. Drywall goes on a lot better when the framing is right."
— Emily Chen"Every inspection passed first time. The building department clearly knows him and that made the whole process easier."
— Kelly Fletcher