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CGI Construction in Ontario, CA | Mason Remodeling
We provide independent CGI cabinet installation, refacing, and repair across Ontario, and the short version is this: if your CGI thermofoil is peeling near the oven or your cabinet boxes are swelling under the sink, that’s where we start. The heat here isn’t like coastal California. Ontario summers sit above 100°F for stretches, and that inland dry heat attacks glued thermofoil in ways most cabinet brands never see west of the 15. Call (803) 680-2547 and tell us what you’re seeing. We’ll tell you straight whether it’s a repair, a reface, or a replacement, and you’ll have a written price before any work starts.
Why Ontario Residents Choose Us for CGI Service

We’ve installed and serviced CGI’s kitchen and bath cabinetry across Ontario for years, which means we’ve seen the brand’s real-world quirks up close. Not from a spec sheet. From actual kitchens in Ontario Ranch, along Archibald Avenue, and in older pockets of the city where slab-on-grade foundations are the norm. Isaac Pruett, our owner, grew up in the San Fernando Valley and went through the construction technology program at LATTC in Los Angeles. He’s spent close to two decades remodeling homes, and he still checks every cabinet door alignment himself before calling a job done. You can read about our full CGI sales & service scope, but the point is this: we know what fails, why it fails here, and what’s actually worth fixing versus replacing.
Because we’re independent, not manufacturer-authorized, we give honest assessments. If a CGI cabinet is repairable, we say so. If it’s not, we tell you that too, with a written price either way. Every crew member who comes to your Ontario home for General Contractor - Ontario work is background-checked and identity-verified under the Threshold Standard, and you’ll get their name and photo before they arrive.
Styles & brands we work with







Common CGI Construction Problems We Solve in Ontario
- Thermofoil delamination near heat sources. CGI’s glued thermofoil door skins peel away from the MDF core when exposed to repeated heat, and in Ontario that means ovens, dishwashers, and even south-facing windows in summer. We remove the delaminated panels, use high-temp adhesive on replacements, and address the venting that caused it.
- Particleboard cabinet boxes crumbling under sinks. CGI boxes with particleboard core wick moisture from slow under-sink leaks and slab-on-grade dampness, which is a real factor in many Ontario homes. The bottom panels swell and crumble. We assess whether a box rebuild or full replacement makes more sense.
- Soft-close hinge sag on older CGI doors. The standard concealed hinges CGI used on many lines lose tension after a few years, so doors hang uneven and stop closing flush. We source OEM CGI hinges when available, and use high-quality aftermarket hardware when they’re not.
- Finish fading on darker thermofoil. UV exposure through windows fades CGI’s dark thermofoil finishes unevenly, especially on south-facing walls in Ontario. You’ll see lighter patches on the upper doors before the lower ones. We can match and replace individual doors rather than the whole run.
- Drawer slides binding and sticking. After years of dry heat and dust, CGI drawer slides collect grit and start catching. Sometimes a cleaning and realignment fixes it; sometimes the bearings are shot. We’ll tell you which one you’re dealing with before we quote anything.
CGI Service in Ontario: What Local Conditions Mean for Your Equipment

Here’s something you won’t find on a generic contractor page: Ontario’s inland location means summer highs regularly exceed 100°F, and that extreme dry heat accelerates adhesive failure in CGI’s thermofoil doors. Coastal customers in Los Angeles or San Diego don’t deal with the same sustained temperatures, so the same cabinets that hold up fine in Long Beach will delaminate above a stove in Ontario within two or three summers. We’ve rebuilt kitchens in Ontario Ranch where the uppers above the range had peeled after exactly that kind of exposure. The fix wasn’t just new doors. It was high-temp adhesive, proper venting, and an honest conversation about how heat moves through a kitchen that size. That’s the local knowledge that changes the quote. If you’re in Ontario and your CGI cabinets are starting to lift, it’s not a fluke and it’s not your fault. It’s the climate, and we know how to work with it.
We serve the wider Ontario service area, and we’ve done enough kitchens here to know which neighborhoods face this hardest. Homes with west-facing kitchens and limited cross-breeze get it worst.
CGI Models & Products We Service in Ontario
We work on the full range of CGI product lines: Ready-to-Assemble (RTA) Shaker-style kitchen cabinets, Thermofoil (TFL) cabinet doors and drawer fronts, our Bathroom Remodeling in Ontario Vanity Collections, and the Semi-Custom Cabinet Series. Our approach to parts is simple. We source OEM CGI hinges, drawer slides, and shelf pins when they’re available, because that keeps your warranty intact. When CGI has discontinued a line and OEM parts are no longer made, we use high-quality aftermarket hardware that often outlasts the original. For cabinet boxes that have swollen or delaminated, we tell you straight whether a reface or full replacement is the better investment. No pushing you toward the more expensive option because we’d rather sell a bigger job.
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AfterCGI Service Pricing in Ontario

Pricing depends on what you have and what’s gone wrong. Here are the ranges we see across Ontario:
| Service | Typical Ontario Price Range |
|---|---|
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
| Backsplash Installation | $800 – $2,500 |
| Bathroom Vanity Installation | $800 – $3,000 |
| Full Kitchen Remodeling | $14,000 – $45,000 |
What drives the cost: the number of cabinets, whether the boxes are salvageable, the countertop material, and whether we’re refacing versus full replacement. Every quote includes a written price before any work begins. We don’t do verbal estimates that grow on the final bill. Call (803) 680-2547 and we’ll walk through your project and put numbers on paper.
Serving Ontario, CA - Our Local Coverage Area
We’re based in the Ontario area and also provide Rancho Cucamonga Cgi service, but we know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs – CGI Construction in Ontario
In most cases, you can replace just the doors if the cabinet boxes are still structurally sound. We’ll check for particleboard swelling, especially under sinks, and confirm the hinges and slides are holding. If the boxes are solid, door replacement with matching CGI thermofoil or a reface of the existing fronts is usually the lower-cost fix. Call (803) 680-2547 and we’ll give you an honest read.
We’re an independent service provider, so we don’t process manufacturer warranty claims directly. But we source OEM CGI parts whenever they’re available, which keeps your warranty valid, and we document our work with photos and notes you can submit. If CGI has discontinued a line, we use high-quality aftermarket hardware and tell you up front.
Yes, and we pay extra attention to moisture barriers and under-sink sealing on slab-on-grade homes. Particleboard cabinet boxes are more vulnerable to dampness wicking up through the slab in older Ontario homes, so we recommend sealed bottom panels and quick leak fixes to prevent the crumble we see so often. A quick call to (803) 680-2547 gets you a free assessment.
Refacing CGI kitchen cabinets in Ontario typically falls between $4,000 and $13,000 depending on the number of doors, the finish you choose, and whether we’re also replacing hinges and slides. Full kitchen remodeling runs $14,000 to $45,000. Every project gets a written line-item quote first. Call (803) 680-2547 for exact numbers on your kitchen.
Usually, yes. We’ve matched CGI finishes on individual door replacements, including a recent Ontario Ranch kitchen where we replaced delaminated thermofoil uppers and matched the existing color without a full replacement. The match depends on fading, but in most cases we get it close enough that you can’t pick out the new doors. Call (803) 680-2547 and we’ll take a look.
Service Areas Near Ontario
We serve Ontario and the surrounding Inland Empire, along with projects across Southern California. If you’re outside Ontario, we also cover CGI service in Elk Grove for Sacramento-area homes and CGI service in Santa Rosa for North Bay kitchens. Give us a call and we’ll tell you if we can reach you.
Book Your CGI Service in Ontario Today
Know who’s coming, know what it costs, know it’s backed up – everything else is just noise. If your CGI cabinets are peeling, swelling, or sagging in Ontario, call (803) 680-2547 for a free estimate. We’ll put the price in writing before any work starts, and a live person answers every call.
Written by Isaac Pruett, Owner at Mason Remodeling, serving Ontario since 2004.











