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CGI Construction in Ontario, CA | San Mateo Construction
We provide independent CGI cabinet and countertop installation, repair, and refacing across Ontario, and the thing that separates our CGI repair in Montclair and surrounding areas is simple: we plan for settlement. Ontario’s older slab homes in 91762 and 91764 move over time, and the warehouse tenant improvements along the I-10 need steel-stud anchoring. If your CGI cabinets are pulling from the wall or your quartz edges are chipping after a Santa Ana season, call (855) 901-7266 and we’ll assess what’s actually going on.
We’re a licensed general contractor, not a manufacturer-authorized dealer. We’ve learned CGI’s cabinet lines and failure points by installing and servicing them across Ontario for years, both in postwar ranch homes near Euclid Avenue and in tilt-up warehouse offices near the airport, and we also offer Upland CGI service for nearby properties. The same crew can handle your kitchen reface, your shower, or a full tenant improvement, all under one contract.
Why Ontario Residents Choose Us for CGI Service
Noel Carrington founded San Mateo Construction after three decades in residential and light commercial work, and he still runs projects the way he learned on his father’s footings in San Mateo: measure twice, explain the trade-off, don’t sell what the house doesn’t need. That matters when you’re deciding whether your 1960s CGI cabinets should be repaired or replaced.
For CGI work specifically, we bring three things Ontario homeowners and property managers keep asking for. First, we know which CGI cabinet lines hold up under Inland Empire heat and which tend to separate at the corners. Second, we stock the common CGI hinge and glide replacements locally, so a drawer that won’t close in a 91762 rental doesn’t sit broken for two weeks. Third, we source OEM CGI hardware when the warranty is still active and use quality aftermarket components when they match or beat the original spec and get you running faster. Tell me what you actually need, and we’ll figure out the right way to build it.
Styles & brands we work with
Common CGI Construction Problems We Solve in Ontario
Here’s what we see on service calls in Ontario, tied to what this city actually does to cabinets and countertops:
- Cabinet box separation at corner joints: Ontario’s high desert temperature swings, especially the hot days and cool nights from spring through fall, cause wood to expand and contract. Older CGI cabinet boxes held with mechanical fasteners start to pull at the corners. We re-glue, re-fasten, and where needed add corner bracing rather than telling you to gut the kitchen.
- Quartz countertop edge chipping and UV fading: Intense summer sun through unshaded south-facing windows fades CGI quartz colors over time, and edge chipping shows up most often around sinks and corners in heavy daily use. In Ontario’s dry climate, it’s UV and impact damage, not moisture, that ages countertops. We repair edges and advise on UV-stable sealants.
- Drawer glide and hinge failure from dust infiltration: Homes near the warehouse corridor along the I-10 and Etiwanda see constant fine dust. It works into glides and hinges, grinding them down. We clean and replace with sealed-bearing aftermarket hardware when OEM parts aren’t the better call.
- Stucco and sealant degradation around kitchen bump-outs: Ontario’s Santa Ana winds and dry heat crack stucco and exterior sealant around kitchen bump-outs and bath vent penetrations. Water intrusion behind CGI vanity cabinets or kitchen uppers starts small, then the cabinet back panel swells. We fix the exterior seal first, then address the cabinet.
- Settled slab foundations causing cabinet pull-away: In the older tract homes of 91762 and 91764, slab settlement tilts floors and walls. CGI uppers mounted to original 1950s and 1960s framing start to gap at the top. We re-anchor with shims and toggle systems rather than just tightening the same screws into the same holes.
CGI Service in Ontario: What Local Conditions Mean for Your Equipment
Ontario runs on two different concrete realities, and which one your building sits on changes how CGI installation should be spec’d from day one. Along the I-10 and around the former airport industrial belt, you’ve got tilt-up warehouse slabs and steel-stud tenant improvement walls. CGI cabinets mounted in a warehouse office need anchor systems rated for steel studs, not wood framing, because there’s no stud to bite into. The cabinets themselves are the same boxes, but the wall they hang on is a different species entirely. In the postwar slab-on-grade homes of 91762 and 91764, the slab has usually settled somewhere between a quarter inch and a full inch since Truman was president. That means a level line drawn on the wall rarely matches the floor. CGI cabinets installed without shims or accounted-for leveling will rack, doors will bind, and corner joints will stress-fracture within a few seasons. We set cabinets to the floor plane when the floor is the reference, and to the wall plane when it’s not. A warehouse TI in east Ontario and a 1950s ranch off Euclid Avenue are maybe fifteen minutes apart, but they require two different installation mindsets.
CGI Models & Products We Service in Ontario
Our crews work with the full CGI residential and light commercial line. That includes CGI Euro-style frameless cabinets, CGI Shaker-style solid wood cabinets, CGI quartz countertops, and CGI vanity and bath cabinetry. For warranty-sensitive repairs we order OEM CGI hardware and components. For out-of-warranty work where speed matters, we keep a local stock of aftermarket glides, hinges, and edge profiles in Ontario that meet or exceed the original spec. If you’re not sure which CGI line is in your kitchen, send us a photo of the hinge and the inside of a drawer box. We’ll ID it. For broader CGI sales & service, we can walk through which models make sense for your project.
See the difference
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AfterCGI Service Pricing in Ontario
You’re probably trying to figure out what CGI work actually costs here. These are our typical Ontario ranges for the three services homeowners and property managers ask about most:
| Service | Typical Cost Range |
|---|---|
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
| Walk-In Shower Installation | $4,500 – $12,000 |
What drives the number is scope, not surprises. A cabinet install in a 1960s Ontario ranch with settled floors takes more shimming and leveling than one in a newer 91761 subdivision with square walls. Countertop cost depends on slab size, edge profile, and whether we’re hauling out the old top or cutting and polishing in place. Every estimate includes a written line-item quote, and the price doesn’t change once work starts unless you change the scope. Call (855) 901-7266 to schedule yours.
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 – CGI Construction in Ontario
Yes. Steel-stud walls in Ontario’s warehouse corridor near the I-10 and airport require anchor systems built for metal framing, not wood screws. We spec toggle anchors or continuous plywood backing between studs depending on the CGI cabinet weight and what’s being stored. Call (855) 901-7266 and we’ll look at the wall before quoting.
Most are repairable. What you’re seeing is almost always slab settlement combined with thermal movement, not failed wood. We re-anchor the boxes, re-glue and brace the corner joints, and replace worn hinges and glides. If the cabinet boxes are sound and you like the layout, repair is the better money. We’ll tell you honestly when the boxes are too far gone. Call (855) 901-7266 for an assessment.
Ontario’s high-desert UV exposure and summer heat cycles cause CGI quartz colors to fade over years, especially in rooms with direct south or west sun. Edge chipping is more common near corners and sink cutouts where daily impact concentrates. We use UV-stable adhesives and edge profiles that resist chipping, and we can advise on window film or shade if your countertop is taking direct afternoon sun. Call (855) 901-7266 for a repair estimate.
Yes. We install CGI cabinetry in ADU kitchens, garage-conversion wet bars, and small apartment infill projects across Ontario, including CGI service in Chino and surrounding communities. Compact Euro-style frameless boxes work well in tight ADU footprints, and we coordinate cabinet install with countertop fabrication and shower waterproofing so one crew handles the whole interior. Call (855) 901-7266 to talk through your plans.
Most full-kitchen CGI refacing jobs in Ontario run five to eight working days from template to final hardware adjustment. Countertops add a few days for slab fabrication. If we’re keeping your existing boxes and replacing fronts, doors, and hardware, it’s faster than a full tear-out and you keep your kitchen functional most of the time. Call (855) 901-7266 for a project-specific timeline and written quote.
Service Areas Near Ontario
We serve all of Ontario, including 91758, 91761, 91762, and 91764. Need CGI service outside the city? We also cover Ontario service area neighbors, plus CGI service in Apple Valley for High Desert clients and CGI service in Rancho Cucamonga for foothill homes.
Book Your CGI Service in Ontario Today
If your CGI cabinets are pulling away, your countertop edges are chipped, or you’re planning a new install in Ontario or need San Antonio Heights CGI service, call us. Estimates are free, and we’ll give you a straight answer on repair versus replacement. Reach San Mateo Construction at (855) 901-7266.
Written by Noel Carrington, Owner at San Mateo Construction, serving Ontario and the Inland Empire.