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 with houses that were mostly built between 1950 and 1980, when galvanized plumbing was standard and foundations were poured on former citrus grove soil. Those homes now need real upgrades: foundation attention, plumbing replacement, and floor plans that work for how families live today. Polaris Contractors handles the full scope, from the roof down to the pavers, so you’re not juggling five different crews. Call (855) 473-6535 to talk through your project.
Why Ontario Homes Are Different
Ontario’s housing stock tells two stories. The residential neighborhoods, especially in the 91761 and 91762 ZIPs, are filled with ranch-style homes from the 1950s through the 1970s. These houses have wood-frame construction, original galvanized pipes that corrode from the inside out, and foundations that have spent decades reacting to Ontario’s hot, dry summers and Santa Ana winds. Soil drying and subsidence here is real: we regularly see cracked slabs and hairline foundation fractures in older Ontario homes that would go unnoticed in coastal cities.
The 91764 ZIP has its own quirk. Many postwar homes there were built on former citrus groves, which means old irrigation lines and buried organic debris still sit in the soil. When that organic material decomposes, it leaves voids. New foundation work in that area often requires over-excavation and compaction reports before concrete goes down. Ontario’s building inspectors also take a close look at ADU projects, since the city has been pushing hard to meet state housing mandates. Expect requests for soil reports and drainage plans on any addition.
For homeowners, this means renovation in Ontario is rarely a cosmetic exercise. The best projects address the structure first: foundation bolting, shear-wall retrofits, and drain plane corrections. Get that right, and the kitchen and bath work that follows actually lasts.
Styles & brands we work with







Our Main Ontario Services
Two service areas account for most of the calls we take from Ontario homeowners: full-scope general contracting and whole-home remodeling. Here’s what each looks like in this city.
General Contractor in Ontario
When an Ontario renovation touches structure, plumbing, electrical, and finishes, you need one accountable party coordinating the entire job. That’s the General Contractor in Ontario role we play. In Ontario’s older ranch homes, this often means sequencing foundation work, re-piping, and interior remodeling so the house stays livable while the work happens. We manage every trade under one contract, pull the permits, and deal with the city’s inspection schedule so you don’t have to. One team, full scope, from structural retrofits to the final coat of paint.

Home Remodeling in Ontario
Whole-home remodeling in Ontario usually starts with the question of whether to keep the original footprint or open it up. Many 1960s ranch homes have compartmentalized layouts that don’t match how families live now. Our Home Remodeling in Ontario work includes reconfiguring kitchens and baths, moving walls where the structure allows, replacing windows and doors, and upgrading finishes throughout. Because Ontario’s climate swings from dry heat to occasional winter rain, we also address exterior drainage and building envelope issues as part of the remodel, not as an afterthought.

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, CA is a different job than it is in newer cities. The housing stock here is predominantly 1950s to 1970s ranch construction, which means galvanized supply lines, undersized electrical panels, and foundations that have shifted through decades of hot, dry summers and Santa Ana wind seasons. Renovating these homes properly means addressing what’s behind the walls before you spend money on what’s in front of them. Polaris Contractors has served Ontario since 2018, and we approach every renovation as a full-scope project: structure first, systems second, finishes third. That sequencing is what prevents a beautiful new kitchen from sitting on top of a failing foundation. You can read more about our renovation approach on our Home Renovation page, but the short version is this: one contract, one accountable team, and a plan that respects how Ontario’s older homes actually behave.
Home Renovation Contractors
Signs you need it
If your Ontario home has original galvanized pipes, a foundation with visible cracks, or rooms that feel disconnected from how your family actually lives, it’s time to talk to home renovation contractors.
What it costs in Ontario
Full home renovation work in Ontario typically runs from $14,000 to $45,000 depending on scope, with whole-home projects scaling from there.
How we do it
We start with a structural and systems assessment, then sequence the work so plumbing, electrical, framing, and finishes happen in the right order with one accountable team.
Home Renovators
Signs you need it
If you’re planning multiple upgrades across different parts of the house and want them coordinated as one project rather than a series of disconnected fixes, experienced home renovators are the right call.
What it costs in Ontario
Renovator-led projects in Ontario generally start around $9,000 for a small scope like a single room and climb to $45,000 or more for larger, multi-space renovations.
How we do it
We map the entire project before demo starts, order long-lead materials early, and keep the job moving so you’re not living in a construction zone longer than necessary.
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 |
How long does a home renovation take in Ontario?
Most Ontario renovations take 6 to 14 weeks depending on scope, permit review, and whether structural or foundation work is involved. We give you a written schedule before demo starts, and we update it weekly. Call (855) 473-6535 to discuss your timeline.
Do Ontario renovations require permits?
Yes, structural, plumbing, electrical, and any work that changes a home’s footprint requires permits in Ontario. We pull all permits, schedule inspections, and deal directly with city reviewers. Call (855) 473-6535 for details on your specific project.
Brands We Service in Ontario
We specify and install materials from our brands including Schluter for waterproofing, Grohe for fixtures, Sterling for bath systems, and GAF for roofing. Parts are ordered through our regional supply partners, and we coordinate delivery so materials arrive when the job needs them, not weeks early.
See the difference
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After
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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 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
| Backsplash Installation | $800 – $2,500 |
| Kitchen Island Installation | $3,000 – $10,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Shower Replacement | $3,000 – $8,500 |
| Bathroom Vanity Installation | $800 – $3,000 |
Prices in Ontario shift upward when a project uncovers foundation issues, galvanized plumbing that needs full replacement, or soil conditions in the 91764 area that require over-excavation. Every estimate we give is a written, line-item quote with fixed pricing once scope is set. No change orders unless you approve them first.
Neighborhoods We Serve in Ontario
We work across Ontario’s residential neighborhoods, from the established ranch-home streets near downtown to the newer developments on the city’s edges. Each area has its own character and, often, its own set of renovation challenges.
- Downtown Ontario, including the historic Euclid Avenue corridor
- The 91761 ZIP neighborhoods around Chaffey High School
- The 91762 residential tracts near Ontario International Airport
- The 91764 ZIP, including former citrus grove subdivisions
- The 91758 area near the Ontario Mills district
Response time for estimates across Ontario is typically within a few business days, and we schedule site visits around your availability.
Service Area – Cities Near Ontario
Polaris Contractors also works in the communities surrounding Ontario. If you’re in Montclair, CA, Upland, CA, Chino, CA, or San Antonio Heights, CA, we bring the same full-scope approach to your project. Each city has its own housing stock and permit quirks, and we’re familiar with all of them.
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 can start within 2 to 4 weeks after the estimate and contract are signed, depending on permit review times. We coordinate all paperwork so the start date is realistic. Call (855) 473-6535 to check current scheduling for your neighborhood.
Yes, we prepare and submit all permit applications, attend any required meetings with city staff, and schedule every inspection through final sign-off. Ontario’s review process can be detailed, especially for ADU and addition projects, and we manage it from start to finish.
We serve Ontario and the surrounding Inland Empire communities including Montclair, Upland, Chino, and San Antonio Heights. If you’re just outside these areas, call (855) 473-6535 and we’ll confirm whether we cover your ZIP code.
If you’re planning a renovation in Ontario and want one accountable team handling every phase, call Polaris Contractors at (855) 473-6535 for a free estimate. We’ll walk your home with you, talk through what’s realistic, and give you a written plan with real numbers.
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."
— Yolanda Herrera"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."
— Marisol Morales"He was upfront about a soil issue that added cost early rather than absorbing it and surprising us at the end."
— Brandon Lin