Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Remodeling Company in Ontario, CA
Mason Remodeling builds and remodels homes across Ontario, CA, and we write the price before any work starts. Ontario’s housing stock spans 1970s ranch homes south of the 10, older bungalows near downtown, and newer subdivisions climbing toward Archibald and Haven. That mix means two identical kitchens are rarely identical once the walls come open. If you’re planning a remodel here, call (803) 680-2547 for a free estimate and a written, line-item quote.
Why Ontario Homes Are Different
Ontario sits at the base of the San Gabriel foothills, and the homes reflect every era the city has grown through. In neighborhoods like Creekside and Park Place, we see 1980s builds with copper supply lines that are still solid but often undersized for a second full bath. South Ontario has older construction where galvanized pipe means a bathroom remodel may need a partial repipe to bring water pressure back. The soil here is another factor. Expansive clay under much of the city moves with winter rain and summer heat, which is why concrete driveways and patio slabs in Ontario crack in patterns homeowners in Chino or Eastvale rarely see. Summer heat above 100 degrees also dictates materials: cabinet finishes and paint cure differently, and roofing underlayment has to be rated for sustained sun. Ontario is not a city where a contractor can cut corners on substrate prep and get away with it for long.
Permitting through the city is straightforward once plans are right, but the building division does enforce its standards. Any structural work, window expansions, additions, or garage conversions in Ontario require a permit and inspection. HOA neighborhoods like Edenglen and New Haven also have their own review layers for exterior work, paint, and rooflines, and we handle that paperwork with the same written-pricing rule as the construction itself.
Styles & brands we work with
Our Main Ontario Services
Most Ontario calls to us fall into three buckets, and each has its own detailed page for this city. Here is what they are and why they matter locally.
General Contractor in Ontario
Older Ontario homes frequently need structural attention before cosmetic work begins. We open walls and find termite damage in sill plates, settled footings under room additions, or framing that was notched for plumbing and never reinforced. As your General Contractor in Ontario, we handle that in sequence: assess, write the price, permit, repair, then build. The written price covers the whole scope, and if the building inspector flags something during the job, you know the change cost before it is approved, not after the fact.
Bathroom Remodeling in Ontario
Bathrooms in Ontario homes from the 1970s and 1980s are typically 5 by 8 feet with a single vanity, a fiberglass tub, and tile that has outlived its waterproofing. Moisture in this dry climate hides behind the tile until the grout fails, then the damage is already in the backer. Our Bathroom Remodeling in Ontario page covers tub-to-shower conversions, walk-in showers, and full gut remodels, with quotes in the ranges listed below. Every bathroom job includes a written price before demo day and a 365-Day Done Right Promise.
Home Remodeling in Ontario
Whole-home remodels in Ontario often mean reworking a 1980s floor plan to create an open kitchen-family room, or converting a garage into living space now that remote work has changed how families use their homes. Our Home Remodeling in Ontario page covers additions, ADUs, garage conversions, and multi-room interior remodels. We pull permits, coordinate inspections, and deliver the finished house with the same written guarantee we give on every project.
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.
Brands We Service in Ontario
We work with modular and prefab builders like Abodu, Cover, and Dvele when an Ontario homeowner wants an ADU or studio unit faster than a traditional stick-built addition allows. Parts and finish materials are sourced through the Threshold Group supply chain, so lead times stay predictable even during peak season. See our brands for the full list.
See the difference
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AfterPricing for Remodeling Company in Ontario, CA
These ranges reflect what we see across Ontario and the Inland Empire. They are written as total project ranges, not per-square-foot guesses, and they assume standard site conditions.
| 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 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Vinyl Fence Installation | $3,500 – $9,000 |
| Roof Replacement | $8,000 – $20,000 |
| Window Replacement | $4,500 – $15,000 |
| Home Addition | $45,000 – $130,000 |
| Garage Conversion | $30,000 – $80,000 |
What pushes a job toward the top of these ranges in Ontario is usually hidden conditions: galvanized plumbing in older south Ontario homes, foundation settling in clay-heavy lots, or permit corrections on unpermitted past work. What we will not do is quote low and add it back later. You get a written price before any work begins, and if approved change orders are needed, you see the numbers first.
Neighborhoods We Serve in Ontario
We work across the full city, from the historic neighborhoods near Euclid Avenue to the newer communities east of Haven and north of the 210.
- Creekside
- Park Place
- Edenglen
- New Haven
- Archibald Ranch
Most Ontario appointments can be scheduled within a few business days, with written estimates delivered shortly after the walkthrough.
Service Area – Cities Near Ontario
Beyond Ontario, our crews cover Montclair, CA to the west, Claremont, CA at the foothills, Upland, CA to the north, and Rancho Cucamonga, CA to the east. If you are in a neighboring city and wondering whether we work in your neighborhood, call and ask.
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
We typically schedule initial walkthroughs in Ontario within a few business days. The written estimate follows promptly after the walkthrough. Full construction start dates depend on current project load and the city’s permit timeline, which for standard interior remodels in Ontario is usually two to four weeks.
Yes. We prepare and submit permit applications to the city of Ontario for every project that requires one, and we carry the job through all required inspections. For HOA neighborhoods like Edenglen and New Haven, we also package the exterior-change approval forms the association requires, so you are not chasing paperwork between three offices.
Only if you ask the price to change. If you approve a change order, you get the new number in writing before that portion of the work proceeds. If we open a wall and find rot or a code issue we could not have seen at estimate, we stop and bring you the exact cost before touching it. Mason Remodeling does not send surprise invoices, and Isaac Pruett holds every Ontario project to that standard.
To get a written estimate for your Ontario remodel, call (803) 680-2547. A live person answers, day or night, and we’ll schedule your walkthrough without a call tree or a voicemail loop.
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
"Good work on the hall bath. They found a rotted subfloor, which added cost, but showed me photos and a clear price first."
- Neil P."Great quality tile work. The countertop template slipped by a week, but the project lead explained and kept us updated."
- Susan Y."Basement refinish with egress window. Drywall finish is smooth and the electrician was tidy."
- Kyle S.
