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
CGI Construction in Rancho Cucamonga, CA | Hampton Contractors
We’re Hampton Contractors, an independent construction crew servicing CGI components across Rancho Cucamonga and nearby communities including Upland CGI service areas. Our CGI work here differs from a generic parts-replacement outfit because we read the lot’s zone first: valley-floor tract homes in 91730 and 91701, versus foothill and hillside builds up in 91737 and 91739. Each zone changes how we scope, quote, and repair. Call (833) 467-4075 for a free estimate.
If you own a CGI-framed addition, a home with CGI roof trusses, or CGI cabinetry in an older Rancho Cucamonga house, you already know the material is only half the story. The ground under it, the sun on it, and the water moving around it decide whether a repair holds or fails inside a season. That is where we spend our time before we ever pick up a tool. Brent Calloway has been reading construction sites in the High Desert since he was eighteen, and the habit carried over into Rancho Cucamonga’s foothill work the same way: look at the drainage first, then the framing.
Why Rancho Cucamonga Residents Choose Us for CGI Service
We know CGI components the way a finish carpenter knows where a miter will bind before he cuts it. That familiarity matters on Rancho Cucamonga jobs because the housing stock spans two very different eras of construction. The mid-century tract homes around 91730 and 91701 went up fast, with CGI cabinetry that has now been cycling through inland heat and dry air for forty to sixty years. The newer Mediterranean and Spanish-style production homes in 91737 and 91739 carry CGI roof trusses, windows, and exterior doors that face a different set of problems: wind, slope drainage, and sun loading on south and west exposures.
We’re not a manufacturer dealer, and we don’t pretend to be. What we bring is local construction experience, true OEM CGI parts where they’re available, and good-quality aftermarket equivalents when OEM is discontinued or would stall your job waiting on a lead time. If you’re in Rancho Cucamonga and you want a straight answer on whether to repair or replace, we’ll give you one. Our CGI sales & service work covers the full scope, from a single cabinet box to a full roof replacement.
Styles & brands we work with







Common CGI Construction Problems We Solve in Rancho Cucamonga
- CGI roof framing and sheathing with moisture staining on foothill homes. In 91737 and 91739, slope-drainage deficiencies push water back under the roof edge. By the time the stain shows on the ceiling, the sheathing fasteners have usually been loosening for a while too.
- CGI cabinet boxes separating at the joints on valley-floor homes. In the 91730 and 91701 tract houses, decades of hot inland summer heat followed by low interior humidity cycles the wood. Joints open, door fronts fail, and the cabinet box basically walks itself apart over time.
- CGI window and door frames warping or losing seal on sunny exposures. South and west facing walls in Rancho Cucamonga take the full brunt of the Inland Empire sun plus Santa Ana wind events. Frames warp, seals let go, and air starts moving where it shouldn’t.
- CGI exterior trim and fascia drying, cracking, and pulling at roof edges. On foothill homes, seasonal wind and flash-flood splash-back beat on the trim line. The wood dries out, cracks, and pulls the fastening loose at the eave.
- CGI specialty and trim components failing on custom foothill builds. High-end custom homes in the upper ZIPs often used CGI trim and specialty millwork. When the lot shifts on expansive soil, those trim joints open and the finish work telegraphs the movement right through the paint.
CGI Service in Rancho Cucamonga: What Local Conditions Mean for Your Equipment
Here is the Rancho Cucamonga-specific fact—along with what we see in neighboring CGI in Ontario—that changes how we scope CGI work: in the foothill ZIPs 91737 and 91739, expansive soils and slope-drainage requirements mean a CGI-framed addition, deck, or retaining-wall tie-in can hinge on geology that a flat-valley 91730 job never touches. The valley floor sits on deep alluvial deposits from the San Gabriel Mountains. The foothill lots sit on slopes where the soil swells and shrinks with moisture, and where drainage has to be engineered, not just assumed.
We saw this play out on an upper 91739 lot where the crew opened up a CGI-framed addition wall and found moisture staining and loosened fasteners where the slope-side drainage had been sending water back toward the sheathing. We corrected the grading and drainage first, replaced the compromised CGI framing and sheathing, and tied the new assembly back into a properly flashed and vented roof edge. In a 91730 tract home down on the valley floor, the CGI cabinet boxes we pull are usually failing at the joints from decades of hot-summer cycling. Different problem, different fix. Good work doesn’t need a disclaimer.
CGI Models & Products We Service in Rancho Cucamonga
We service CGI cabinetry in the older 1960s through 1980s tract homes around 91730 and 91701, CGI roof trusses and framing on 1990s and 2000s tract builds in the foothill ZIPs, CGI windows and exterior doors on Spanish and Mediterranean production homes in 91737 and 91739, and CGI specialty and trim components on custom foothill builds. The parts question matters: we source true OEM CGI components where they exist, and where OEM is discontinued or the lead time would leave your kitchen gutted for six weeks, we spec a quality aftermarket equivalent and tell you plainly what we’re doing and why. We tell owners honestly when the existing CGI assembly is worth repairing versus replacing, especially when a roof or cabinet layout has already been compromised by movement, moisture, or years of heat cycling.
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AfterCGI Service Pricing in Rancho Cucamonga
What you’ll pay in Rancho Cucamonga depends mostly on which zone your home sits in and what the CGI component is doing. A valley-floor kitchen remodel in a 91730 tract home is a different job than a foothill addition in 91739 where the soil and drainage have to be addressed before any CGI framing goes up. Here are the current market ranges we work within:
| Service | Price Range |
|---|---|
| Roof Replacement | $8,000 – $20,000 |
| Roof Repair | $400 – $1,800 |
| Full Kitchen Remodeling | $14,000 – $45,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Full Bathroom Remodeling | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
Your free estimate includes a written line-item quote with no change orders on the back end. We pull the permits, and the inspection has to pass before we call the job done. Call (833) 467-4075 to schedule yours.
Serving Rancho Cucamonga, CA — Our Local Coverage Area
We’re based in the Rancho Cucamonga 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 Rancho Cucamonga
In most 91739 cases we open up, the damp wall is the result of slope-side drainage directing water back toward the sheathing, not a CGI product defect. The fix starts with correcting the grading and drainage, then replacing the compromised CGI framing and flashing it properly. Call (833) 467-4075 and we’ll take a look.
If the CGI trusses themselves are sound and the sheathing and flashing are the problem, a repair makes sense. If moisture has been working on the truss ends and fasteners, a replacement is usually the cheaper option over five years. We’ll tell you which one your roof actually needs.
No. Hampton Contractors is an independent GC and we are not manufacturer-affiliated or authorized. What we are is experienced with CGI components across Rancho Cucamonga’s housing stock, and we install every component to spec using OEM parts where available.
A 91730 tract kitchen usually means CGI cabinet boxes that have been heat-cycled for decades and need full replacement. A 91739 foothill kitchen more often involves working around existing CGI framing and drainage constraints before cabinet and countertop work begins. Both are kitchens, but the prep work is not the same job.
Over time, the sun load and Santa Ana wind on those exposures will warp frames and break seals on almost any window or door, including CGI, a pattern we also address with our CGI service in Fontana. Proper flashing and install matter more than the brand when the sun and wind are that consistent. Call (833) 467-4075 for an exact assessment.
Service Areas Near Rancho Cucamonga
We also serve Hesperia, Oak Hills, Victorville, Apple Valley, and Spring Valley Lake. If you’re nearby and need CGI service, our Rancho Cucamonga service area coverage extends to the surrounding communities. We also offer CGI service in Highgrove and CGI service in Sunnyslope for homeowners just outside the city.
Book Your CGI Service in Rancho Cucamonga Today
We’ll come out, read the lot, and tell you straight what your CGI roof, framing, cabinets, or windows need. Call (833) 467-4075 to schedule your free estimate.
Written by Brent Calloway, Owner at Hampton Contractors, serving Rancho Cucamonga since he first started reading High Desert construction sites as a teenager.